Networker

Re: [Networker] Open files on Linux server

2005-01-07 14:47:01
Subject: Re: [Networker] Open files on Linux server
From: Darren Dunham <ddunham AT TAOS DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Fri, 7 Jan 2005 11:46:14 -0800
> I've been asked how Networker handles open files on our Linux server.  In
> paticular there is a Samba share that may have open FoxPro database files.
>
> I've never seen any error messages in regards to files that cannot be
> backed up for some reason.
>
> Do open files get skipped?  If so, is there a log somewhere that could
> tell me what files did not get backed up?

No.  On UNIX, open files can still be read by other processes, so they
are not skipped.  On Windows, this task is more difficult.

However even if the file can be read by another process, that does not
mean that the data is suitable for restoration.  Because it takes time
to read the file, if the database is modifying the data, the copy on
tape may not be consistent.

I don't know FoxPro, but it may have some restrictions on how its data
can be backed up and restored.  It may need to be quiesced before
running the backup.



--
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
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