Problems with DL380 Gen9 Smart Array
I recently bought a ProLiant DL380 Gen9, i’ve had some trouble getting it up and running. I ran the ProLiant SPP ISO to uprade firmwares but felt the system became less stable as a result, at one point the system got stuck on the Windows loading screen, it seemed to cause the fans in the server spin up as fast as possible which as you can image was incredibly loud, after a long time i had no choice but to hard reset it, this is when the bigger problems started. During post on the HP loading screen it said there was an error with Smart Array P440, it said something about cache being disabled and that it needed configuring, i re-configured the controller i even deleted the raid arrays and started again but now everytime i boot the system it says the same thing during post that the Array controller needs configuring.. i then get a warning in yellow saying there is errors, press F1 to continue or F2 to view them, pressing F2 takes me to ‘Device Health Status’ which shows: Embedded : Smart Array P440ar Conteoller — Device configuration required, which then takes me to HP Smart Storage Administrator. I can continue and everything works as normal. but how do i get rid of the error? If i run diagnostic report on the controller i find only one CRITICAL error:
Box failure due to primary IO module
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asked Jan 11, 2015 at 13:30
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This video will help you to configure RAID/Array on HP G9 servers youtu.be/d-Xc5MVCjw0
– user333628
Jan 24, 2016 at 6:42
3 Answers 3
- What operating system are you using?
- Are there any warning lights on the exterior of the server chassis.
- Post the errors you received. The actual text, please.
- Contact the vendor you purchased from.
- Call HP for support.
I suspect cache module failure, but this machine has so many built-in health checks that you should not be in the dark about what’s happening.
Can you boot into the Intelligent Provisioning screen (press F10 at boot) and see what the diagnostics say?
answered Jan 11, 2015 at 14:10
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Windows Server 2012 R2 Data Centre, No all lights are green.. The error at post is: «Device configuration required», if I change something like the Read/Write Cache Ratio (i’m assuming this resets it) the error is different: 1797-Slot 0 Drive Array — Write-Back Cache Backup Previously Failed. Caching is disabled. Yes diagnostics only shows this error: «Box failure due to primary IO module». Thanks
Jan 11, 2015 at 14:27
Your cache module failed. Please contact HP or your vendor for a replacement.
Jan 11, 2015 at 14:28
Thanks ewwhite.. I guess i’ll call HP, is it normal for loss of power to completely kill the cache? it is brand new.
Jan 12, 2015 at 8:44
It doesn’t matter if it’s normal or not. Sometimes things fail. HP will resolve it.
Jan 12, 2015 at 8:45
Thanks, after 3 hours on the support call we couldn’t shift the errors, got the cache functioning properly but it was locked on to ‘device needs configuring’ .. there is another controller on it’s way to me.
Jan 12, 2015 at 15:28
As it news, I would call for the board warrenty. The cache error can be seen as its usually the battery pack, you might not have it, but the other error you facing is not normal.
answered Jan 11, 2015 at 13:45
yagmoth555 ♦ yagmoth555
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Here’s my experience with very similar equipment (tested on two separate servers), different O/S, in the hope it might be useful.
ProLiant DL360 Gen9 with HP Smart Array P440ar Controller. O/S VMWare 5.0.0 and also VMWare 5.5.0 using HP install ISO in both cases (comes bundled with drivers, etc). Controller firmware was 2.52, Hardware Revision: B. Also 2G Cache module with battery (only gives 1.8G of actual cache). Drives are Samsung EVO SSD 850 (not HP branded). Setup as RAID-5 with 5x 1T drives, after SSD over-provision you get about 3.5T in VMWare datastore.
Disabled the HP SSD Smart Path.
Set the logical drive controller cache to mostly write, tried tinkering read/write balance, you need at lest about 10% write to get decent performance out of it.
End result: good performance, but poor stability. We had incidents where drives were marked as «failed» but nothing wrong with the drive whatsoever. On a reboot it happily picks up the drive again, or do a hot-swap with identical drive and check supposedly «failed» drive on another machine. nothing wrong with it.
Another strange symptom: in some (but not all) cases the first parity initialization failed, however the RAID array still showed no errors, no warnings, appeared to work normally, HP support could not give a clear answer as to whether the «Initialization Failed» is important or not. Instability was observed BOTH in systems where we got «Initialization Completed» status and also where it got «Initialization Failed» status.
I’m 95% sure it’s a controller firmware bug, cannot get HP to admit anything, they blame the Samsung drives (which are new and work fine, and we use same drives elsewhere). HP support are very unenthusiastic about helping you once they see you are using non-HP branded drives.
Newer controller firmware version 3.56 came out December 2015 so my equipment has been recently updated. So far (touch wood) no problems, early days, see if it lasts.
Important information available or errors detected как исправить
How to Configure the Server to Display the F1 Key in the POST Screen
-
본문 폰트 크기 조정 본문 폰트 크기 작게 보기 본문 폰트 크기 크게 보기 가
HPE ProLiant DL380 Gen9 Server — How to Configure the Server to Display the F1 Key in the POST Screen
FACT:HPE ProLiant DL380 Gen9 Server
FACT:HPE StorageWorks LTO-5 Ultrium 3000 SAS Tape Drive
SYMPTOM:Configuring the server to display the F1 key in the POST Screen DL380 Gen9 server with new Ultrium 3000 drive attached gives error at BIOS stage during boot. Exact message says «Important information available or errors detected» and then to press F2 for more information. and when user press F2 it goes on to say «
Health Status: Configuration Required» and then below that it says «Tape Drive(s) Detected»
CAUSE:This is a feature not a bug or error.
Answer/Solution
FIX:If user wish to disable this function :
Go to Uefi and make the below changes .
System Configuration-BIOS/Platform Configuration (RBSU) >Server Availability > POST F1 Prompt-Disabled
This option lets user configure the system to display the F1 key in the server POST screen. If an error is encountered, user can press the F1 key to continue with the server power-up sequence. Select one of the following options: Delayed 20 Seconds — if an error occurs, the system pauses for 20 seconds at the F1 prompt and continues to boot the OS. Delayed 2 Seconds — if an error occurs, the system pauses for 2 seconds at the F1 prompt and continues to boot the OS. Disabled — if an error occurs, the system bypasses the F1 prompt and continues to boot the OS. Note: For critical errors, the system will pause for 20 seconds at the F1 prompt no matter how this option is configured.
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#include errors detected. Please update your includePath. #1863
thewhitecat opened this issue Apr 21, 2018 · 23 comments
#include errors detected. Please update your includePath. #1863
thewhitecat opened this issue Apr 21, 2018 · 23 comments
Comments
thewhitecat commented Apr 21, 2018 •
Hello, trying to set VS Code up for C++ I ran into a problem. I’m on Win32, MinGW installed.
I just tried a simple Hello World, but VS Code doesn’t seem to like:
As it gives out 2 problems:
#include errors detected. Please update your includePath. IntelliSense features for this translation unit (D:\Dokumente\test.cpp) will be provided by the Tag Parser.
and:
cannot open source file «iostream»
I’ve read issue #1041 but I couldn’t solve my problem.
My test.cpp:
#include int main ()
The Win32 part of my c_cpp_properties.json looks as follows:
< "name": "Win32", "includePath": [ "$", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++", "D:/MinGW/include", "D:/MinGW/bin", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/backward", "D:/MinGW/lib/gcc/mingw32/6.3.0/include", "D:/MinGW/lib/gcc/mingw32/6.3.0/include-fixed" ], "defines": [ "_DEBUG", "UNICODE", "_UNICODE" ], "intelliSenseMode": "msvc-x64", "browse": < "path": [ "$", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++", "D:/MinGW/lib/gcc/mingw32/6.3.0/include", "D:/MinGW/lib/gcc/mingw32/6.3.0/include-fixed", "D:/MinGW/include/*", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32", "D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/backward", "D:/MinGW/include" ], "limitSymbolsToIncludedHeaders": true, "databaseFilename": "" >, "cStandard": "c11", "cppStandard": "c++17" > From what I can tell «iostream» sits in D:/MinGW/lib/gcc/mingw32/6.3.0/include/c++
Setting intelliSenseMode set to clang-x64 did not help either.
I can compile the program just fine using g++ test.cpp
Thanks for your help.
The text was updated successfully, but these errors were encountered:
thewhitecat closed this as completed Apr 22, 2018
stwupton commented Apr 22, 2018 •
I didn’t realise I had to set the compilerPath . For those who find who also stumble on this issue, take a look at this document. The compilerPath needs to be set and intelliSenseMode needs to be set to clang-x64 . Here’s my configuration as an example;
< "configurations": [ < "name": "MinGW", "compilerPath": "C:/Users/Steven Upton/scoop/apps/gcc/current/bin/g++.exe", "includePath": [ "$" ], "defines": [ "_DEBUG", "UNICODE", "_UNICODE" ], "intelliSenseMode": "clang-x64", "browse": < "path": [ "$" ], "limitSymbolsToIncludedHeaders": true, "databaseFilename": "" >, "cStandard": "c11", "cppStandard": "c++17" > ], "version": 3 > abhishekkarigar commented Jun 19, 2018
worked for me what stwupton had told.
thanks man.
alosoft commented Sep 15, 2018
thanks man worked for me too
leslienguyn commented Sep 29, 2018 •
edited by bobbrow
bobbrow commented Oct 1, 2018
TallOrderDev commented Jun 18, 2019
Is there a VS code for mac version of this?
Collaborator
sean-mcmanus commented Jun 18, 2019
@TallOrderDev VS Code (and our extension) is available for Mac.
Yguy16 commented Jun 21, 2019
I hava this same problem but I do not know how to write a compiler path please help
Collaborator
sean-mcmanus commented Jun 21, 2019
@Yguy16 You set the «compilerPath» setting to the path to your compiler. What OS/compiler are you using?
Yguy16 commented Jun 21, 2019
Yguy16 commented Jun 21, 2019
@sean-mcmanus im windows do i not have a compiler than?
Collaborator
sean-mcmanus commented Jun 21, 2019
@Yguy16 You can use many different compilers on Windows, but if you’re using cl.exe or a WSL compiler, then we usually should auto-detect that and you shouldn’t need to set a compilerPath unless you want to add compiler arguments. See https://code.visualstudio.com/docs/cpp/config-msvc , or https://code.visualstudio.com/docs/cpp/config-wsl, or https://code.visualstudio.com/docs/cpp/config-mingw .
Yguy16 commented Jun 21, 2019
I dont know why it is not auto detecting @sean-mcmanus. It does it on my mac but i think I fixed by disabling the squigle lines
Collaborator
sean-mcmanus commented Jun 21, 2019
@Yguy16 You may not have a compiler installed? You can run the C/C++: Log Diagnostics command to see what compiler path we are auto-detecting.
Yguy16 commented Jun 21, 2019
I do think I have a compiler on my windows but it does not have the same error while testing on my mac
@sean-mcmanus so should I just stick to coding on my mac?
Yguy16 commented Jun 21, 2019
@sean-mcmanus this is the basic cpp cod I have and it says ‘g++’ is not recognized as an internal or external command,
operable program or batch file.
Yguy16 commented Jun 21, 2019
@sean-mcmanus I ran a similar piece of code on my mac and it worked so ill stick to that thank you
TallOrderDev commented Jun 25, 2019
Above @stwupton provides a config example for windows, which has worked on my windows machine. I’m curious if there is a Mac version of this solution. As I also work with VS code on mac and would like to not have to vm to windows to use VS Code for C++.
Collaborator
sean-mcmanus commented Jun 25, 2019
@TallOrderDev See https://code.visualstudio.com/docs/cpp/config-clang-mac . If you have specific question/problem on Mac, please file a new issue. Yguy16 seemed to be unable to build on Mac.
robrey commented Nov 3, 2019
It is very complex, I am trying to resolve my electronic problem in C++ and I do not have time to resolve configurations problems. Is there another debugger? Please.
Collaborator
michelleangela commented Nov 4, 2019
@robrey , please file new issues about the specific configuration problems and debugger.
For the configuration issue, please provide logs from running the C/C++: Log diagnostics command.
For debugger issue, please provide copies of your tasks.json and launch.json files if you have them.
Nadeem-Ullah commented Feb 18, 2020
I am running .cpp file on VS Code to compile and run it. But I don’t know how to setup VS code environment for it to debug. I have run the following code on it and it gives me these errors:
#include errors detected. Please update your includePath. Squiggles are disabled for this translation unit (D:\ENG BOOKS\7th semester\fyp\FYP\FYP\Identification based Pill Dispensor\project data\tablet project\Adafruit_Fingerprint\FunTech-Bloggers_Fingerprint.cpp).
cannot open source file «Adafruit_Fingerprint.h»
`/***************************************************
This is a library for our optical Fingerprint sensor
Designed specifically to work with the Adafruit Fingerprint sensor
—-> http://www.adafruit.com/products/751
These displays use TTL Serial to communicate, 2 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, all text above must be included in any redistribution
****************************************************/
#include «Adafruit_Fingerprint.h»
#ifdef AVR
#include
#include
#endif
#ifdef AVR
Adafruit_Fingerprint::Adafruit_Fingerprint(SoftwareSerial *ss) thePassword = 0;
theAddress = 0xFFFFFFFF;
hwSerial = NULL;
swSerial = ss;
mySerial = swSerial;
>
#endif
Adafruit_Fingerprint::Adafruit_Fingerprint(HardwareSerial *ss) thePassword = 0;
theAddress = 0xFFFFFFFF;
#ifdef AVR
swSerial = NULL;
#endif
hwSerial = ss;
mySerial = hwSerial;
>
void Adafruit_Fingerprint::begin(uint16_t baudrate) delay(1000); // one second delay to let the sensor ‘boot up’
if (hwSerial) hwSerial->begin(baudrate);
#ifdef AVR
if (swSerial) swSerial->begin(baudrate);
#endif
>
boolean Adafruit_Fingerprint::verifyPassword(void) uint8_t packet[] = (thePassword >> 24), (thePassword >> 16),
(thePassword >> 8), thePassword>;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, 7, packet);
uint8_t len = getReply(packet);
/*
Serial.print(«\nGot packet type «); Serial.print(packet[0]);
for (uint8_t i=1; i
Serial.print(packet[i], HEX);
>
*/
return false;
>
uint8_t Adafruit_Fingerprint::getImage(void) uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, 3, packet);
uint8_t len = getReply(packet);
uint8_t Adafruit_Fingerprint::image2Tz(uint8_t slot) uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
uint8_t Adafruit_Fingerprint::createModel(void) uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
uint8_t Adafruit_Fingerprint::storeModel(uint16_t id) uint8_t packet[] = > 8, id & 0xFF>;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
//read a fingerprint template from flash into Char Buffer 1
uint8_t Adafruit_Fingerprint::loadModel(uint16_t id) uint8_t packet[] = > 8, id & 0xFF>;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
if ((len != 1) && (packet[0] != FINGERPRINT_ACKPACKET)) return -1; return packet[1]; //transfer a fingerprint template from Char Buffer 1 to host computer
uint8_t Adafruit_Fingerprint::getModel(void) uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
if ((len != 1) && (packet[0] != FINGERPRINT_ACKPACKET)) return -1; return packet[1]; uint8_t Adafruit_Fingerprint::deleteModel(uint16_t id) uint8_t packet[] = > 8, id & 0xFF, 0x00, 0x01>;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
if ((len != 1) && (packet[0] != FINGERPRINT_ACKPACKET)) return -1; return packet[1]; uint8_t Adafruit_Fingerprint::emptyDatabase(void) uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
uint8_t Adafruit_Fingerprint::fingerFastSearch(void) fingerID = 0xFFFF;
confidence = 0xFFFF;
// high speed search of slot #1 starting at page 0x0000 and page #0x00A3
uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
fingerID = packet[2];
fingerID fingerID |= packet[3];
confidence = packet[4];
confidence confidence |= packet[5];
uint8_t Adafruit_Fingerprint::getTemplateCount(void) templateCount = 0xFFFF;
// get number of templates in memory
uint8_t packet[] = ;
writePacket(theAddress, FINGERPRINT_COMMANDPACKET, sizeof(packet)+2, packet);
uint8_t len = getReply(packet);
templateCount = packet[2];
templateCount templateCount |= packet[3];
void Adafruit_Fingerprint::writePacket(uint32_t addr, uint8_t packettype,
uint16_t len, uint8_t *packet) #ifdef FINGERPRINT_DEBUG
Serial.print(«—> 0x»);
Serial.print((uint8_t)(FINGERPRINT_STARTCODE >> 8), HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)FINGERPRINT_STARTCODE, HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)(addr >> 24), HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)(addr >> 16), HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)(addr >> 8), HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)(addr), HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)packettype, HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)(len >> 8), HEX);
Serial.print(» 0x»);
Serial.print((uint8_t)(len), HEX);
#endif
#if ARDUINO >= 100
mySerial->write((uint8_t)(FINGERPRINT_STARTCODE >> 8));
mySerial->write((uint8_t)FINGERPRINT_STARTCODE);
mySerial->write((uint8_t)(addr >> 24));
mySerial->write((uint8_t)(addr >> 16));
mySerial->write((uint8_t)(addr >> 8));
mySerial->write((uint8_t)(addr));
mySerial->write((uint8_t)packettype);
mySerial->write((uint8_t)(len >> 8));
mySerial->write((uint8_t)(len));
#else
mySerial->print((uint8_t)(FINGERPRINT_STARTCODE >> 8), BYTE);
mySerial->print((uint8_t)FINGERPRINT_STARTCODE, BYTE);
mySerial->print((uint8_t)(addr >> 24), BYTE);
mySerial->print((uint8_t)(addr >> 16), BYTE);
mySerial->print((uint8_t)(addr >> 8), BYTE);
mySerial->print((uint8_t)(addr), BYTE);
mySerial->print((uint8_t)packettype, BYTE);
mySerial->print((uint8_t)(len >> 8), BYTE);
mySerial->print((uint8_t)(len), BYTE);
#endif
uint16_t sum = (len>>8) + (len&0xFF) + packettype;
for (uint8_t i=0; i < len-2; i++) #if ARDUINO >= 100
mySerial->write((uint8_t)(packet[i]));
#else
mySerial->print((uint8_t)(packet[i]), BYTE);
#endif
#ifdef FINGERPRINT_DEBUG
Serial.print(» 0x»); Serial.print(packet[i], HEX);
#endif
sum += packet[i];
>
#ifdef FINGERPRINT_DEBUG
//Serial.print(«Checksum = 0x»); Serial.println(sum);
Serial.print(» 0x»); Serial.print((uint8_t)(sum>>8), HEX);
Serial.print(» 0x»); Serial.println((uint8_t)(sum), HEX);
#endif
#if ARDUINO >= 100
mySerial->write((uint8_t)(sum>>8));
mySerial->write((uint8_t)sum);
#else
mySerial->print((uint8_t)(sum>>8), BYTE);
mySerial->print((uint8_t)sum, BYTE);
#endif
>
uint8_t Adafruit_Fingerprint::getReply(uint8_t packet[], uint16_t timeout) uint8_t reply[20], idx;
uint16_t timer=0;
idx = 0;
#ifdef FINGERPRINT_DEBUG
Serial.print(» #endif
while (true) while (!mySerial->available()) delay(1);
timer++;
if (timer >= timeout) return FINGERPRINT_TIMEOUT;
>
// something to read!
reply[idx] = mySerial->read();
#ifdef FINGERPRINT_DEBUG
Serial.print(» 0x»); Serial.print(reply[idx], HEX);
#endif
if ((idx == 0) && (reply[0] != (FINGERPRINT_STARTCODE >> 8)))
continue;
idx++;
// check packet! if (idx >= 9) < if ((reply[0] != (FINGERPRINT_STARTCODE >> 8)) || (reply[1] != (FINGERPRINT_STARTCODE & 0xFF))) return FINGERPRINT_BADPACKET; uint8_t packettype = reply[6]; //Serial.print("Packet type"); Serial.println(packettype); uint16_t len = reply[7]; len
#ifdef FINGERPRINT_DEBUG
Serial.println();
#endif
return len;
>
>
>
Important information available or errors detected как исправить
Each Status-Code is described below, including a description of which method(s) it can follow and any metainformation required in the response.
10.1 Informational 1xx
This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line. There are no required headers for this class of status code. Since HTTP/1.0 did not define any 1xx status codes, servers MUST NOT send a 1xx response to an HTTP/1.0 client except under experimental conditions.
A client MUST be prepared to accept one or more 1xx status responses prior to a regular response, even if the client does not expect a 100 (Continue) status message. Unexpected 1xx status responses MAY be ignored by a user agent.
Proxies MUST forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself requested the generation of the 1xx response. (For example, if a
proxy adds a "Expect: 100-continue" field when it forwards a request, then it need not forward the corresponding 100 (Continue) response(s).)
10.1.1 100 Continue
The client SHOULD continue with its request. This interim response is used to inform the client that the initial part of the request has been received and has not yet been rejected by the server. The client SHOULD continue by sending the remainder of the request or, if the request has already been completed, ignore this response. The server MUST send a final response after the request has been completed. See section 8.2.3 for detailed discussion of the use and handling of this status code.
10.1.2 101 Switching Protocols
The server understands and is willing to comply with the client's request, via the Upgrade message header field (section 14.42), for a change in the application protocol being used on this connection. The server will switch protocols to those defined by the response's Upgrade header field immediately after the empty line which terminates the 101 response.
The protocol SHOULD be switched only when it is advantageous to do so. For example, switching to a newer version of HTTP is advantageous over older versions, and switching to a real-time, synchronous protocol might be advantageous when delivering resources that use such features.
10.2 Successful 2xx
This class of status code indicates that the client's request was successfully received, understood, and accepted.
10.2.1 200 OK
The request has succeeded. The information returned with the response is dependent on the method used in the request, for example:
GET an entity corresponding to the requested resource is sent in the response;
HEAD the entity-header fields corresponding to the requested resource are sent in the response without any message-body;
POST an entity describing or containing the result of the action;
TRACE an entity containing the request message as received by the end server.
10.2.2 201 Created
The request has been fulfilled and resulted in a new resource being created. The newly created resource can be referenced by the URI(s) returned in the entity of the response, with the most specific URI for the resource given by a Location header field. The response SHOULD include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content-Type header field. The origin server MUST create the resource before returning the 201 status code. If the action cannot be carried out immediately, the server SHOULD respond with 202 (Accepted) response instead.
A 201 response MAY contain an ETag response header field indicating the current value of the entity tag for the requested variant just created, see section 14.19.
10.2.3 202 Accepted
The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually be acted upon, as it might be disallowed when processing actually takes place. There is no facility for re-sending a status code from an asynchronous operation such as this.
The 202 response is intentionally non-committal. Its purpose is to allow a server to accept a request for some other process (perhaps a batch-oriented process that is only run once per day) without requiring that the user agent's connection to the server persist until the process is completed. The entity returned with this response SHOULD include an indication of the request's current status and either a pointer to a status monitor or some estimate of when the user can expect the request to be fulfilled.
10.2.4 203 Non-Authoritative Information
The returned metainformation in the entity-header is not the definitive set as available from the origin server, but is gathered from a local or a third-party copy. The set presented MAY be a subset or superset of the original version. For example, including local annotation information about the resource might result in a superset of the metainformation known by the origin server. Use of this response code is not required and is only appropriate when the response would otherwise be 200 (OK).
10.2.5 204 No Content
The server has fulfilled the request but does not need to return an entity-body, and might want to return updated metainformation. The response MAY include new or updated metainformation in the form of entity-headers, which if present SHOULD be associated with the requested variant.
If the client is a user agent, it SHOULD NOT change its document view from that which caused the request to be sent. This response is primarily intended to allow input for actions to take place without causing a change to the user agent's active document view, although any new or updated metainformation SHOULD be applied to the document currently in the user agent's active view.
The 204 response MUST NOT include a message-body, and thus is always terminated by the first empty line after the header fields.
10.2.6 205 Reset Content
The server has fulfilled the request and the user agent SHOULD reset the document view which caused the request to be sent. This response is primarily intended to allow input for actions to take place via user input, followed by a clearing of the form in which the input is given so that the user can easily initiate another input action. The response MUST NOT include an entity.
10.2.7 206 Partial Content
The server has fulfilled the partial GET request for the resource. The request MUST have included a Range header field (section 14.35) indicating the desired range, and MAY have included an If-Range header field (section 14.27) to make the request conditional.
The response MUST include the following header fields:
- Either a Content-Range header field (section 14.16) indicating the range included with this response, or a multipart/byteranges Content-Type including Content-Range fields for each part. If a Content-Length header field is present in the response, its value MUST match the actual number of OCTETs transmitted in the message-body.
- Date
- ETag and/or Content-Location, if the header would have been sent in a 200 response to the same request
- Expires, Cache-Control, and/or Vary, if the field-value might differ from that sent in any previous response for the same variant
If the 206 response is the result of an If-Range request that used a strong cache validator (see section 13.3.3), the response SHOULD NOT include other entity-headers. If the response is the result of an If-Range request that used a weak validator, the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers. Otherwise, the response MUST include all of the entity-headers that would have been returned with a 200 (OK) response to the same request.
A cache MUST NOT combine a 206 response with other previously cached content if the ETag or Last-Modified headers do not match exactly, see 13.5.4.
A cache that does not support the Range and Content-Range headers MUST NOT cache 206 (Partial) responses.
10.3 Redirection 3xx
This class of status code indicates that further action needs to be taken by the user agent in order to fulfill the request. The action required MAY be carried out by the user agent without interaction with the user if and only if the method used in the second request is GET or HEAD. A client SHOULD detect infinite redirection loops, since such loops generate network traffic for each redirection.
Note: previous versions of this specification recommended a maximum of five redirections. Content developers should be aware that there might be clients that implement such a fixed limitation.
10.3.1 300 Multiple Choices
The requested resource corresponds to any one of a set of representations, each with its own specific location, and agent- driven negotiation information (section 12) is being provided so that the user (or user agent) can select a preferred representation and redirect its request to that location.
Unless it was a HEAD request, the response SHOULD include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content- Type header field. Depending upon the format and the capabilities of
the user agent, selection of the most appropriate choice MAY be performed automatically. However, this specification does not define any standard for such automatic selection.
If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for automatic redirection. This response is cacheable unless indicated otherwise.
10.3.2 301 Moved Permanently
The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. This response is cacheable unless indicated otherwise.
The new permanent URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s).
If the 301 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued.
Note: When automatically redirecting a POST request after receiving a 301 status code, some existing HTTP/1.0 user agents will erroneously change it into a GET request.
10.3.3 302 Found
The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field.
The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s).
If the 302 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued.
Note: RFC 1945 and RFC 2068 specify that the client is not allowed to change the method on the redirected request. However, most existing user agent implementations treat 302 as if it were a 303 response, performing a GET on the Location field-value regardless of the original request method. The status codes 303 and 307 have been added for servers that wish to make unambiguously clear which kind of reaction is expected of the client.
10.3.4 303 See Other
The response to the request can be found under a different URI and SHOULD be retrieved using a GET method on that resource. This method exists primarily to allow the output of a POST-activated script to redirect the user agent to a selected resource. The new URI is not a substitute reference for the originally requested resource. The 303 response MUST NOT be cached, but the response to the second (redirected) request might be cacheable.
The different URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s).
Note: Many pre-HTTP/1.1 user agents do not understand the 303 status. When interoperability with such clients is a concern, the 302 status code may be used instead, since most user agents react to a 302 response as described here for 303.
10.3.5 304 Not Modified
If the client has performed a conditional GET request and access is allowed, but the document has not been modified, the server SHOULD respond with this status code. The 304 response MUST NOT contain a message-body, and thus is always terminated by the first empty line after the header fields.
The response MUST include the following header fields:
- Date, unless its omission is required by section 14.18.1
If a clockless origin server obeys these rules, and proxies and clients add their own Date to any response received without one (as already specified by [RFC 2068], section 14.19), caches will operate correctly.
- ETag and/or Content-Location, if the header would have been sent in a 200 response to the same request
- Expires, Cache-Control, and/or Vary, if the field-value might differ from that sent in any previous response for the same variant
If the conditional GET used a strong cache validator (see section 13.3.3), the response SHOULD NOT include other entity-headers. Otherwise (i.e., the conditional GET used a weak validator), the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers.
If a 304 response indicates an entity not currently cached, then the cache MUST disregard the response and repeat the request without the conditional.
If a cache uses a received 304 response to update a cache entry, the cache MUST update the entry to reflect any new field values given in the response.
10.3.6 305 Use Proxy
The requested resource MUST be accessed through the proxy given by the Location field. The Location field gives the URI of the proxy. The recipient is expected to repeat this single request via the proxy. 305 responses MUST only be generated by origin servers.
Note: RFC 2068 was not clear that 305 was intended to redirect a single request, and to be generated by origin servers only. Not observing these limitations has significant security consequences.
10.3.7 306 (Unused)
The 306 status code was used in a previous version of the specification, is no longer used, and the code is reserved.
10.3.8 307 Temporary Redirect
The requested resource resides temporarily under a different URI. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field.
The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s) , since many pre-HTTP/1.1 user agents do not understand the 307 status. Therefore, the note SHOULD contain the information necessary for a user to repeat the original request on the new URI.
If the 307 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued.
10.4 Client Error 4xx
The 4xx class of status code is intended for cases in which the client seems to have erred. Except when responding to a HEAD request, the server SHOULD include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. These status codes are applicable to any request method. User agents SHOULD display any included entity to the user.
If the client is sending data, a server implementation using TCP SHOULD be careful to ensure that the client acknowledges receipt of the packet(s) containing the response, before the server closes the input connection. If the client continues sending data to the server after the close, the server's TCP stack will send a reset packet to the client, which may erase the client's unacknowledged input buffers before they can be read and interpreted by the HTTP application.
10.4.1 400 Bad Request
The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat the request without modifications.
10.4.2 401 Unauthorized
The request requires user authentication. The response MUST include a WWW-Authenticate header field (section 14.47) containing a challenge applicable to the requested resource. The client MAY repeat the request with a suitable Authorization header field (section 14.8). If the request already included Authorization credentials, then the 401 response indicates that authorization has been refused for those credentials. If the 401 response contains the same challenge as the prior response, and the user agent has already attempted authentication at least once, then the user SHOULD be presented the entity that was given in the response, since that entity might include relevant diagnostic information. HTTP access authentication is explained in "HTTP Authentication: Basic and Digest Access Authentication" [43].
10.4.3 402 Payment Required
This code is reserved for future use.
10.4.4 403 Forbidden
The server understood the request, but is refusing to fulfill it. Authorization will not help and the request SHOULD NOT be repeated. If the request method was not HEAD and the server wishes to make public why the request has not been fulfilled, it SHOULD describe the reason for the refusal in the entity. If the server does not wish to make this information available to the client, the status code 404 (Not Found) can be used instead.
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address. This status code is commonly used when the server does not wish to reveal exactly why the request has been refused, or when no other response is applicable.
10.4.6 405 Method Not Allowed
The method specified in the Request-Line is not allowed for the resource identified by the Request-URI. The response MUST include an Allow header containing a list of valid methods for the requested resource.
10.4.7 406 Not Acceptable
The resource identified by the request is only capable of generating response entities which have content characteristics not acceptable according to the accept headers sent in the request.
Unless it was a HEAD request, the response SHOULD include an entity containing a list of available entity characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content-Type header field. Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice MAY be performed automatically. However, this specification does not define any standard for such automatic selection.
Note: HTTP/1.1 servers are allowed to return responses which are not acceptable according to the accept headers sent in the request. In some cases, this may even be preferable to sending a 406 response. User agents are encouraged to inspect the headers of an incoming response to determine if it is acceptable.
If the response could be unacceptable, a user agent SHOULD temporarily stop receipt of more data and query the user for a decision on further actions.
10.4.8 407 Proxy Authentication Required
This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy. The proxy MUST return a Proxy-Authenticate header field (section 14.33) containing a challenge applicable to the proxy for the requested resource. The client MAY repeat the request with a suitable Proxy-Authorization header field (section 14.34). HTTP access authentication is explained in "HTTP Authentication: Basic and Digest Access Authentication" [43].
10.4.9 408 Request Timeout
The client did not produce a request within the time that the server was prepared to wait. The client MAY repeat the request without modifications at any later time.
10.4.10 409 Conflict
The request could not be completed due to a conflict with the current state of the resource. This code is only allowed in situations where it is expected that the user might be able to resolve the conflict and resubmit the request. The response body SHOULD include enough
information for the user to recognize the source of the conflict. Ideally, the response entity would include enough information for the user or user agent to fix the problem; however, that might not be possible and is not required.
Conflicts are most likely to occur in response to a PUT request. For example, if versioning were being used and the entity being PUT included changes to a resource which conflict with those made by an earlier (third-party) request, the server might use the 409 response to indicate that it can't complete the request. In this case, the response entity would likely contain a list of the differences between the two versions in a format defined by the response Content-Type.
10.4.11 410 Gone
The requested resource is no longer available at the server and no forwarding address is known. This condition is expected to be considered permanent. Clients with link editing capabilities SHOULD delete references to the Request-URI after user approval. If the server does not know, or has no facility to determine, whether or not the condition is permanent, the status code 404 (Not Found) SHOULD be used instead. This response is cacheable unless indicated otherwise.
The 410 response is primarily intended to assist the task of web maintenance by notifying the recipient that the resource is intentionally unavailable and that the server owners desire that remote links to that resource be removed. Such an event is common for limited-time, promotional services and for resources belonging to individuals no longer working at the server's site. It is not necessary to mark all permanently unavailable resources as "gone" or to keep the mark for any length of time -- that is left to the discretion of the server owner.
10.4.12 411 Length Required
The server refuses to accept the request without a defined Content- Length. The client MAY repeat the request if it adds a valid Content-Length header field containing the length of the message-body in the request message.
10.4.13 412 Precondition Failed
The precondition given in one or more of the request-header fields evaluated to false when it was tested on the server. This response code allows the client to place preconditions on the current resource metainformation (header field data) and thus prevent the requested method from being applied to a resource other than the one intended.
10.4.14 413 Request Entity Too Large
The server is refusing to process a request because the request entity is larger than the server is willing or able to process. The server MAY close the connection to prevent the client from continuing the request.
If the condition is temporary, the server SHOULD include a Retry- After header field to indicate that it is temporary and after what time the client MAY try again.
10.4.15 414 Request-URI Too Long
The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret. This rare condition is only likely to occur when a client has improperly converted a POST request to a GET request with long query information, when the client has descended into a URI "black hole" of redirection (e.g., a redirected URI prefix that points to a suffix of itself), or when the server is under attack by a client attempting to exploit security holes present in some servers using fixed-length buffers for reading or manipulating the Request-URI.
10.4.16 415 Unsupported Media Type
The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.
10.4.17 416 Requested Range Not Satisfiable
A server SHOULD return a response with this status code if a request included a Range request-header field (section 14.35), and none of the range-specifier values in this field overlap the current extent of the selected resource, and the request did not include an If-Range request-header field. (For byte-ranges, this means that the first- byte-pos of all of the byte-range-spec values were greater than the current length of the selected resource.)
When this status code is returned for a byte-range request, the response SHOULD include a Content-Range entity-header field specifying the current length of the selected resource (see section 14.16). This response MUST NOT use the multipart/byteranges content- type.
10.4.18 417 Expectation Failed
The expectation given in an Expect request-header field (see section 14.20) could not be met by this server, or, if the server is a proxy, the server has unambiguous evidence that the request could not be met by the next-hop server.
10.5 Server Error 5xx
Response status codes beginning with the digit "5" indicate cases in which the server is aware that it has erred or is incapable of performing the request. Except when responding to a HEAD request, the server SHOULD include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. User agents SHOULD display any included entity to the user. These response codes are applicable to any request method.
10.5.1 500 Internal Server Error
The server encountered an unexpected condition which prevented it from fulfilling the request.
10.5.2 501 Not Implemented
The server does not support the functionality required to fulfill the request. This is the appropriate response when the server does not recognize the request method and is not capable of supporting it for any resource.
10.5.3 502 Bad Gateway
The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.
10.5.4 503 Service Unavailable
The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication is that this is a temporary condition which will be alleviated after some delay. If known, the length of the delay MAY be indicated in a Retry-After header. If no Retry-After is given, the client SHOULD handle the response as it would for a 500 response.
Note: The existence of the 503 status code does not imply that a server must use it when becoming overloaded. Some servers may wish to simply refuse the connection.
10.5.5 504 Gateway Timeout
The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI (e.g. HTTP, FTP, LDAP) or some other auxiliary server (e.g. DNS) it needed to access in attempting to complete the request.
Note: Note to implementors: some deployed proxies are known to return 400 or 500 when DNS lookups time out.
10.5.6 505 HTTP Version Not Supported
The server does not support, or refuses to support, the HTTP protocol version that was used in the request message. The server is indicating that it is unable or unwilling to complete the request using the same major version as the client, as described in section 3.1, other than with this error message. The response SHOULD contain an entity describing why that version is not supported and what other protocols are supported by that server.