Full back failed.

Posted in 2008

Summary

A user on Solaris 8 / IDS 7.31 saw ontape full archives abort around 70% with "function write to tape failed code -1 errno 32" and dd reporting a short write to /dev/rmt/0m. Respondents asked about tape media type and capacity and pointed to the ONCONFIG TAPESIZE setting. One suggestion to increase TAPESIZE was corrected: if TAPESIZE were reached, ontape would simply prompt for the next tape, so the error means the physical end of tape was hit before TAPESIZE — i.e. TAPESIZE is set larger than the tape's real capacity and should be lowered. The original poster never replied, so no confirmed fix is recorded.

Auto-generated by DrWatson from the posts below — may be imperfect; read the full thread.

Topics: Clustering, Grid & MACH11, Versions, Editions & End-of-Life

NETSKY LIAO — Mon, 16 Jun 2008 10:40:32 — source: IIUG Forums & Mailing Lists

SYSTEM:Solaris 5.8,SC(cluster) 3.0,IDS 7.31UD6W5 It is failed to do the informix backup in the platform, when we try to do the backup, it give the below error mesage. Please mount tape 1 on smp2:/dev/rmt/0m and press Return to continue ... 10 percent done. 20 percent done. 30 percent done. 40 percent done. 50 percent done. 60 percent done. 70 percent done. Archive failed - function write to tape failed code -1 errno 32 dd: unexpected short write, wrote 0 bytes, expected 65536 In online.log, we can't see anything related to this error, it give us the prompt message: "Achive aborted." only. We tried several method to solve the problems. 1, to use the tape drive in other machine, still failed. 2, to restart the informix server, it can work for 1-2 days, then failed again. I am sure this platform's tape driver is OK .

↪ replying to NETSKY LIAO

Lapeire, Jacques — Mon, 16 Jun 2008 11:10:17 — source: IIUG Forums & Mailing Lists

Some more info please ? Type of medium ?? ( DAT ??) Capacity of medium (supports DDS3, DDS4 ?) Type of tape used ? Capacity of tapes native, compressed ? You use the 0m device (medium compression) Size of data to backup ? Best regards, Jacques Lapeire -----Original Message----- From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of NETSKY LIAO Sent: maandag 16 juni 2008 12:41 To: ids@iiug.org Subject: Full back failed. [12435] SYSTEM:Solaris 5.8,SC(cluster) 3.0,IDS 7.31UD6W5 It is failed to do the informix backup in the platform, when we try to do the backup, it give the below error mesage. Please mount tape 1 on smp2:/dev/rmt/0m and press Return to continue ... 10 percent done. 20 percent done. 30 percent done. 40 percent done. 50 percent done. 60 percent done. 70 percent done. Archive failed - function write to tape failed code -1 errno 32 dd: unexpected short write, wrote 0 bytes, expected 65536 In online.log, we can't see anything related to this error, it give us the prompt message: "Achive aborted." only. We tried several method to solve the problems. 1, to use the tape drive in other machine, still failed. 2, to restart the informix server, it can work for 1-2 days, then failed again. I am sure this platform's tape driver is OK . ************************************************************************ ******* Forum Note: Use "Reply" to post a response in the discussion forum.

↪ replying to Lapeire, Jacques

Keith Simmons — Mon, 16 Jun 2008 11:35:05 — source: IIUG Forums & Mailing Lists

On 16/06/2008, Lapeire, Jacques <jacques.lapeire@siemens.com> wrote: > Some more info please ? > > Type of medium ?? ( DAT ??) > Capacity of medium (supports DDS3, DDS4 ?) > Type of tape used ? > Capacity of tapes native, compressed ? You use the 0m device (medium > compression) > Size of data to backup ? > > Best regards, > Jacques Lapeire > > -----Original Message----- > From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of > NETSKY LIAO > Sent: maandag 16 juni 2008 12:41 > To: ids@iiug.org > Subject: Full back failed. [12435] > > SYSTEM:Solaris 5.8,SC(cluster) 3.0,IDS 7.31UD6W5 > > It is failed to do the informix backup in the platform, when we try to > do the > backup, it give the below error mesage. > > Please mount tape 1 on smp2:/dev/rmt/0m and press Return to continue ... > > 10 percent done. > 20 percent done. > 30 percent done. > 40 percent done. > 50 percent done. > 60 percent done. > 70 percent done. > Archive failed - function write to tape failed code -1 errno 32 > dd: unexpected short write, wrote 0 bytes, expected 65536 > > In online.log, we can't see anything related to this error, it give us > the > prompt message: > "Achive aborted." only. > > We tried several method to solve the problems. > 1, to use the tape drive in other machine, still failed. > 2, to restart the informix server, it can work for 1-2 days, then failed > > again. > > I am sure this platform's tape driver is OK . > > ************************************************************************ > ******* > Forum Note: Use "Reply" to post a response in the discussion forum. > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > Sounds like you are trying to write beyond the end of the tape. What is the device being used and what are your tape settings in onconfig ?? Keith

↪ replying to NETSKY LIAO

Nandkishor Singare — Mon, 16 Jun 2008 12:12:27 — source: IIUG Forums & Mailing Lists

NETSKY LIAO, I think the size of instance archive is more then that you specified for TAPESIZE in onconfig file.Just increase the value(around 30% more) for TAPESIZE in onconfig file and run the backup again. Regards, Nandkishor. =========== On 6/16/08, NETSKY LIAO <liaosnet@126.com> wrote: > > SYSTEM:Solaris 5.8,SC(cluster) 3.0,IDS 7.31UD6W5 > > It is failed to do the informix backup in the platform, when we try to do > the > backup, it give the below error mesage. > > Please mount tape 1 on smp2:/dev/rmt/0m and press Return to continue ... > 10 percent done. > 20 percent done. > 30 percent done. > 40 percent done. > 50 percent done. > 60 percent done. > 70 percent done. > Archive failed - function write to tape failed code -1 errno 32 > dd: unexpected short write, wrote 0 bytes, expected 65536 > > In online.log, we can't see anything related to this error, it give us the > prompt message: > "Achive aborted." only. > > We tried several method to solve the problems. > 1, to use the tape drive in other machine, still failed. > 2, to restart the informix server, it can work for 1-2 days, then failed > again. > > I am sure this platform's tape driver is OK . > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > >

↪ replying to Nandkishor Singare

Keith Simmons — Mon, 16 Jun 2008 12:17:59 — source: IIUG Forums & Mailing Lists

On 16/06/2008, Nandkishor Singare <ns.singare@gmail.com> wrote: > NETSKY LIAO, > > I think the size of instance archive is more then that you specified for > TAPESIZE in onconfig file.> Just increase the value(around 30% more) for TAPESIZE in onconfig file and > run the backup again. > > Regards, > Nandkishor. > =========== > > On 6/16/08, NETSKY LIAO <liaosnet@126.com> wrote: > > > > SYSTEM:Solaris 5.8,SC(cluster) 3.0,IDS 7.31UD6W5 > > > > It is failed to do the informix backup in the platform, when we try to do > > the > > backup, it give the below error mesage. > > > > Please mount tape 1 on smp2:/dev/rmt/0m and press Return to continue ... > > 10 percent done. > > 20 percent done. > > 30 percent done. > > 40 percent done. > > 50 percent done. > > 60 percent done. > > 70 percent done. > > Archive failed - function write to tape failed code -1 errno 32 > > dd: unexpected short write, wrote 0 bytes, expected 65536 > > > > In online.log, we can't see anything related to this error, it give us the > > prompt message: > > "Achive aborted." only. > > > > We tried several method to solve the problems. > > 1, to use the tape drive in other machine, still failed. > > 2, to restart the informix server, it can work for 1-2 days, then failed > > again. > > > > I am sure this platform's tape driver is OK . > > > > > > > > > ******************************************************************************* > > Forum Note: Use "Reply" to post a response in the discussion forum. > > > > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > NO, if you have reached the size of TAPESIZE then the archive will pause, rewind the tape and prompt for the next one to be inserted. The error would indicate reaching the physical end of the tape BEFORE TAPESIZE is reached. Keith

↪ replying to NETSKY LIAO

Art Kagel — Mon, 16 Jun 2008 23:13:01 — source: IIUG Forums & Mailing Lists

The tape is not as big as the TAPESIZE parameter says that it is. You reached end-of-tape before having written TAPESIZE quantity of data. Art On Mon, Jun 16, 2008 at 6:40 AM, NETSKY LIAO <liaosnet@126.com> wrote: > SYSTEM:Solaris 5.8,SC(cluster) 3.0,IDS 7.31UD6W5 > > It is failed to do the informix backup in the platform, when we try to do > the > backup, it give the below error mesage. > > Please mount tape 1 on smp2:/dev/rmt/0m and press Return to continue ... > 10 percent done. > 20 percent done. > 30 percent done. > 40 percent done. > 50 percent done. > 60 percent done. > 70 percent done. > Archive failed - function write to tape failed code -1 errno 32 > dd: unexpected short write, wrote 0 bytes, expected 65536 > > In online.log, we can't see anything related to this error, it give us the > prompt message: > "Achive aborted." only. > > We tried several method to solve the problems. > 1, to use the tape drive in other machine, still failed. > 2, to restart the informix server, it can work for 1-2 days, then failed > again. > > I am sure this platform's tape driver is OK . > > > > ******************************************************************************* > Forum Note: Use "Reply" to post a response in the discussion forum. > > -- Art S. Kagel Oninit (www.oninit.com) IIUG Board of Directors (art@iiug.org) Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on my employer, Oninit, the IIUG, nor any other organization with which I am associated either explicitly or implicitly. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves.