IDS Forum

Re: Logbackup failed - Error reading from the disk

Posted By: Art Kagel
Date: Monday, 23 June 2014, at 9:24 a.m.

In Response To: Re: Logbackup failed - Error reading from the disk (ABRAR RASHID)

This is the critical message:

00:42:39 I/O read chunk 4, pagenum 922228, pagecnt 64 --> errno = 2

There was a read error trying to read the logdbs chunk. You can try using
dd to read that chunk file/device to see if you can get a better error
message and go from there. If the disk/file/lun is bad, then you may have
to try to archive your instance, recreate the log chunk on good disk, and
restore the server. If you have to do that, I would take a dbexport of all
databases for safety first so that worst case you can rebuild the server
from the exports.

If nothing is wrong with the chunk, then open a PMR with IBM Support and
see what they find.

Art

Art S. Kagel, Principal Consultant
ASK Database Management

Blog: http://informix-myview.blogspot.com/

Disclaimer: Please keep in mind that my own opinions are my own opinions
and do not reflect on the IIUG, nor any other organization with which I am
associated either explicitly, implicitly, or by inference. Neither do
those opinions reflect those of other individuals affiliated with any
entity with which I am affiliated nor those of the entities themselves.

On Mon, Jun 23, 2014 at 8:51 AM, ABRAR RASHID <mabrar@i2cinc.com> wrote:

> Following error message is shown in Online log.
>
> -------------------
>
> Message Log File: /u/informix/informix11.50.FC8W3/online_mcp22.log
> 00:42:38 Who: Session(13, informix@TestDB2, 28812, 11b0e1d80)
>
> Thread(108, logbackup, 11b0a6868, 1)
>
> File: rsbuff.c Line: 6232
> 00:42:38 Action: Please notify IBM Informix Technical Support.
> 00:42:38 stack trace for pid 28700 written to
> /u/informix/informix11.50.FC8W3/tmp/af.45420be
> 00:42:38 See Also: /u/informix/informix11.50.FC8W3/tmp/af.45420be
> Assertion Failure Type: Warning
> Host Name: TestDB2
> Database Server Name: ids_mcp22
> Time of failure: Tue Jun 24 00:42:39 NZST 2014
> AF file: /u/informix/informix11.50.FC8W3/tmp/af.45420be
> Shared memory file: None
> System Blocking: OFF
>
> 00:42:39 I/O read chunk 4, pagenum 922228, pagecnt 64 --> errno = 2
> SENDER IS NULL NO MAIL WILL BE SENT
> 00:42:39 Logical Log 44546 - Backup Aborted
>
> Error reading from the disk, Error No. = 4.
> -----------------------------
>
> Following message is shown in af file
>
> 00:42:38 IBM Informix Dynamic Server Version 11.50.FC8W3 Software Serial
> Number AAA#B000000
>
> 00:42:38 Assert Warning: I/O read chunk 4, pagenum 922228, pagecnt 64 -->
> errno = 2
> 00:42:38 Who: Session(13, informix@TestDB2, 28812, 11b0e1d80)
>
> Thread(108, logbackup, 11b0a6868, 1)
>
> File: rsbuff.c Line: 6232
> 00:42:38 Action: Please notify IBM Informix Technical Support.
> 00:42:38 Raw hex dump of stack located in
> /u/informix/informix11.50.FC8W3/tmp/af.45420be.rawstk
> 00:42:38 Stack for thread: 108 logbackup
> -------
>
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>

--001a11c3eaaa0372ff04fc80c312

Messages In This Thread

• Logbackup failed - Error reading from the disk
  ABRAR RASHID -- Monday, 23 June 2014, at 8:47 a.m.
  • Re: Logbackup failed - Error reading from the disk
    ABRAR RASHID -- Monday, 23 June 2014, at 8:51 a.m.
    • Re: Logbackup failed - Error reading from the disk
      Keith Simmons -- Monday, 23 June 2014, at 9:17 a.m.
    • Re: Logbackup failed - Error reading from the disk
      Art Kagel -- Monday, 23 June 2014, at 9:24 a.m.

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