Networker

Re: [Networker] large filesystem restores

2002-10-08 04:30:19
Subject: Re: [Networker] large filesystem restores
From: Davina Treiber <treiber AT HOTPOP DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Tue, 8 Oct 2002 04:30:33 -0400
On Mon, 7 Oct 2002 18:25:52 -0400, Stan Horwitz <stan AT TEMPLE DOT EDU> wrote:

>On Mon, 7 Oct 2002, rick pim wrote:
>
>> environment: solaris 5.8, networker 6.1.1
>>
>> in order to speed up backups on a large filesystem, directories are
>> arranged as follows:
>>   /export/home/home0
>>   /export/home/home1
>>   ...
>>   /export/home/home9
>
>Assign each directory to its own tape pool and each to its own backup
>group. This guarantees that you can do multiple restores simultaneously
>if you have tape drives available.

Stan, although this will work, it really doesn't scale beyond a few
directories, and could make your config very complicated. I always try to
avoid using more pools than I need.

>
>The restore should have been done using a saveset recover, not a
>standard recover. See the info for the "-S" option on the recover
>man page.

Very possibly true, but it depends on the circumstances. Saveset recover is
usually quicker due to not referencing the index, but if you need a genuine
point-in-time recovery it's not quite the right match. Often it's good
enough though. Some sites use fulls all the time, and in this case a
saveset recover would definitely be better.

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