Networker

Re: [Networker] Recover/backup priority

2007-04-30 20:35:36
Subject: Re: [Networker] Recover/backup priority
From: Stan Horwitz <stan AT TEMPLE DOT EDU>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 30 Apr 2007 20:35:00 -0400
On Apr 30, 2007, at 7:54 PM, Christine Cambrils wrote:

If a NetWorker (module) recover is running and a backup (module or non-module) begins, can the backup potentially write to the tapes that the recover requires? I realize that a recover has priority and will run on its current device until it completes. However, what about the tapes? Can a recover and a backup read and write to the same tape? Which process gets priority, recover or backup?

Reading and writing to the same tape cannot be done simultaneously. The process (recover or backup) that gets the tape first will use it first and the other one will have to wait. In situation where you know a recover has to happen, its good to reserve a tape drive for read only if you have one to spare and mark the tapes that the recover needs as read only if they're not full.

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