Can't find it in the doco just now but I recall there is an upper limit
on the number of savesets on an adv_file volume, something like 15000 -
how many savesets are they getting up to before you get problems?
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of tkimball
Sent: Friday, 29 August 2008 6:56 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] AFTD volume best practice: maximum size?
Well, the largest AFTDs I have are just over 15 TB, and they've been
happy enough after 4 years. However, they're VxVM/VxFS controlled (Sol
8 ). I considered larger, but due to initial choices on the block size
I've hit the max for now.
Since you mention ZFS, trying to 'shrink' the volume is not possible.
Do you have enough disk to attempt to create a temporary, smaller AFTD
ZFS pool and transfer (perhaps using snapshots)?
--TSK
Alan Rubin wrote:
> Hello,
>
> We are running NetWorker 7.3.3 on a T2000 with Solaris 10 08/07. We
use ZFS for
> our AFTDs and we are able to grow them quite large. We get our
storage from a
> SAN currently made up of an IBM DS4800 and a DS6800. Our largest AFTD
volume is
> 16.4TB, but we have been seeing "media emergency" errors in our logs
and
> encountering RPC errors on backups. The OS reports no errors on the
disk
> devices, and ZFS sees no issues with the zpool. If we do a full
reset of
> NetWorker we can get at least one good day out of the backups without
issue - no
> problems talking to the AFTD. And we aren't having any issues with
our smaller
> AFTDs, also built on ZFS. And no problems with our tape backups.
Even worse,
> the backup session starts off the nightly backup with successful
backups to the
> AFTD in question before it starts failing.
>
> So, is there a recommended maximum size for an AFTD and we've just
gotten too
> big? Or, is this just more aggravation from NetWorker? Can anyone
shine any
> light on this?
>
>
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