IDS Forum

Re: Archecker single table restore compressed onta

Posted By: Andreas Legner1
Date: Thursday, 21 September 2017, at 5:58 p.m.

In Response To: Archecker single table restore compressed ontape (ALEKSANDAR IVANOVSKI)

Try the following, just until seeing the initial screep stating the spaces
and chunks and gain confidence that your backup is usable:

ontape -p -t /backup/backup

ontape -t STDIO -s -L 0 > /backup/backup, even with
BACKUP_FILTER /usr/bin/gzip,

will not produce the same output as

ontape -t STDIO -s -L 0 | /usr/bin/gzip > /backup/backup without
BACKUP_FILTER.

Only the backup payload will get filtered, not ontape's leading, trailing
and other 'meta' blocks.

Can't answer the TLR & BACKUP_FILTER question from where I currently stand.

From: "ALEKSANDAR IVANOVSKI" <aleksandar.ivanovski@gmail.com>
To: ids@iiug.org
Date: 09/21/2017 08:35 PM
Subject: Archecker single table restore compressed ontape [39957]
Sent by: ids-bounces@iiug.org

Hi,

AIX 7.1 IDS 11.7FC4.

I have a nightly cron that runs the following ontape backup:

# ontape -t STDIO -s -L 0 > /backup/backup

# onstat -c |grep -i filter

BACKUP_FILTER /usr/bin/gzip
RESTORE_FILTER /usr/bin/gunzip

messages in the log that rootdbs, datadbs ... started ... and after a while

completed successfully.

I need to restore 1 table from this image using archecker that I created
few
days ago. However, if i run gzip -l or even gzip -cd ... it says that this
file is not a valid gz file i.e. I cannot uncompress it.

2 questions:
1. are my backup images corrupted so that I will never be able to use them
even if I restore with the same onconfig file? (AM i doing the backup
command
wrong?)
2. is there any way that archecker can obtain the table from compressed
image?

Tried to understand what Art stated in
http://members.iiug.org/forums/ids/index.cgi/noframes/read/25451 but did
not
helped me much.

Cannot do a full restore due to space limitations.

Looking forward any clarification.

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Messages In This Thread

• Archecker single table restore compressed ontape
  ALEKSANDAR IVANOVSKI -- Thursday, 21 September 2017, at 2:34 p.m.
  • RE: Archecker single table restore compressed onta
    Mike Walker -- Thursday, 21 September 2017, at 2:45 p.m.
    • Re: RE: Archecker single table restore compressed
      ALEKSANDAR IVANOVSKI -- Thursday, 21 September 2017, at 2:56 p.m.
  • Re: Archecker single table restore compressed onta
    Andreas Legner1 -- Thursday, 21 September 2017, at 5:58 p.m.
    • Re: Archecker single table restore compressed onta
      ALEKSANDAR IVANOVSKI -- Friday, 22 September 2017, at 1:05 a.m.
      • RE: Archecker single table restore compressed onta
        Mike Walker -- Friday, 22 September 2017, at 8:19 a.m.
        • Re: RE: Archecker single table restore compressed
          ALEKSANDAR IVANOVSKI -- Friday, 22 September 2017, at 12:49 p.m.
          • Re: RE: Archecker single table restore compressed
            ALEKSANDAR IVANOVSKI -- Tuesday, 26 September 2017, at 6:41 a.m.

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