Networker

Re: [Networker] Corrupt compressed (.bz2) file restores.

2008-01-17 19:55:20
Subject: Re: [Networker] Corrupt compressed (.bz2) file restores.
From: Randy Doering <rdoering2 AT VERIZON DOT NET>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 17 Jan 2008 19:53:06 -0500
Been trying to redirect the recover operations, but it being NDMP, recover has presented some challenges. Still trying.

The full successful restores have finally finished so I'm basically done and will try some more directed restores later.

Thanks for the reply,
Randy

----- Original Message ----- From: "Adrian Saul" <asaul AT HOME-BOX.ODS DOT ORG>
To: <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
Sent: Thursday, January 17, 2008 9:49 AM
Subject: Re: [Networker] Corrupt compressed (.bz2) file restores.


Are you sure its not what you are restoring to that is the problem?

Does it make a difference if you say restore them to /tmp or a non-CX disk?

Randy Doering wrote:
Greetings, Have an interesting (if somewhat rather bizarre) issue.

Environment: RHEL 4.*, Networker Server 7.3.3. File system sets on a Celerra/Clariion (CX700) combo.

User lets me know that he accidently partially deleted a subdirectly containing many files. Not all of the files were deleted but that's not relevent to this. I copied his old directory to a directoryname.orig. And just restored the whole thing again, rather than trying to figure out what had actually been deleted.

The user came back a day (or so) later and gave me a list of 553 "blast.bz2" files that were corrupted after my restore. In digging into this and using bunzip2, I saw where some were indeed corrupt. And, I could do some selective restores of a few and saw where they were not corrupt.

How this has to do with Network, is that say I have a list of 100 of these blast.bz2 files. I would put those in a file and have Networker do the restore. When the restore finished, I would then do bunzip2 on each one, and maybe 40-50 of 100 would be fine, while 50-60 would be corrupt. I then would take the remaining that were corrupt, but them through recover again, and then time maybe another 20-30 would be fine, etc. I would do this until I got down to a single corrupted blast.bz2 file and then I would be fine after another recover.

All of the data is being restored from the same exact SSID.

So why wouldn't the good files be restored the first time I tried it?

We've check for errors in the file system, and haven't found anything yet.

Thanks,

Randy

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