Networker

Re: [Networker] Networker 7.3 client/server on RHEL 4 - recovery problem

2006-06-21 10:32:33
Subject: Re: [Networker] Networker 7.3 client/server on RHEL 4 - recovery problem
From: Rodney Rutherford <rrutherf AT TRIPOS DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Wed, 21 Jun 2006 09:25:37 -0500
I am in the process of building/testing this config right now,
with the intention of migrating from my current Solaris 7.2.1
server to RHEL4/7.3.1.

Once I get it going, I will test it to see if I can duplicate
the problem you are seeing.

Rodney

Scott Russell wrote:
Just a follow up post to see if anyone has a similar environment as I
describe below. The client and server do not need to be on different
systems. I've been able to replicate the problem below using Networker
7.3.1 server/client on the same RHEL4 system.

I'm curious, am I really the only one running 7.3.x on RHEL4 or have a
few of the Linux admins tried this but were unable to replicate the problem?

Any help much appreciated.

Scott Russell wrote:
 > I'm looking for another installed environment, that like mine, has
 > Networker 7.3 (or later) on RHEL 4 for both the server and the client.
 > If you have such a beast, could you please test the following for me?
 > I've seen the problem below on both 7.3 stock and 7.3.1 stock.
 >
 > PROBLEM: Files that are recovered are not the same as the files that
 > are masked for recovery while doing a browse recover.
 >
 > RECREATE:
 > 1) On the client run "recover -d /var/tmp/recover"
 > 2) In the recover shell, run "add /etc" (do not directly select
 > individual files or do "cd /etc; add *")
 > 3) In the recover shell, run "recover" (Do not do any file selection
 > commands between steps 2 and 3)
 > 4) Look for files recovered into /var/tmp/recover that do not match
 > what is the expected current file according to the existing files in
 > /etc/ or the Networker index.
 >
 > For example, on several systems I see the following with files that
 > have recently changed:
 >
 > File in Networker index:
 >    2222 Jun 14 22:42 /etc/passwd
 >
 > File actually recovered:
 >    2054 Jun  1 18:05 /var/tmp/recover/etc/passwd
 >
 > I think this is tied to having multiple incremental backups after a at
 > least one full backup. If the files recovered haven't been changed
 > since the last full I think everything will be great. If on the other
 > hand, multiple versions of the file exist in the Networker index then
 > possibly the wrong file will be restored.
 >
 > I appreciate anyone who can confirm they also see this problem. It's
 > driving me batty :) To confirm the some possible FAQs, I've been
 > through my indexes with nsrck and also _can_ recover the correct file
 > if I directly select the individual file in the recover shell. (eg:
 > "cd /etc; add passwd; recover;") Also, saveset recovery appears to
 > have no issue either. Basically the two methods confirm for me that
 > the file is in fact on the tape and can be read successfully depending
 > on how it is selected for recovery.

--
Scott Russell <lnxgeek AT us.ibm DOT com>
IBM Linux Technology Center, System Admin

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