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help / color / mirror / Atom feedFrom: Jim Nasby <[email protected]>
To: Jeff Davis <[email protected]>
Cc: [email protected]
Subject: Re: PITR and tar
Date: Tue, 8 May 2007 10:25:58 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
On May 7, 2007, at 1:58 PM, Jeff Davis wrote:
> Second, it seems that it can cause a bad backup to occur if you
> pass the
> "z" option to tar. Instead, piping the output of tar through the
> compression program seems to avoid that problem (i.e. "tar cf - ... |
> gzip > ..."). I am using FreeBSD's tar, other implementations may be
> different.
What *exactly* are you seeing there? If anything -z should be safer
than piping through gzip, since you could easily accidentally pipe
stderr through gzip as well, which *would* corrupt the backup.
> Are my observations correct, and if so, should they be documented as a
> potential "gotcha" when making base backups?
I believe the bit about tar complaining about changed files is
already in there, no?
--
Jim Nasby [email protected]
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)
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