On Tue, Jul 27, 2010 at 05:24:07PM -0500, rusty.ma...@sungard.com wrote:
There is or was an 'issue' with NDMP where the dump levels for
incrementals rolled past 9 and went back to 0, causing a full and it would
stay at dump level 0 until the next scheduled full ran. I cannot find a
technote
Yes..netapp NDMP backups use the dump (solaris version of ufsdump)command to
perform backups. The following link explains the NDMP dump process, in detail:
https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb18468
--Original Message--
From: n_ashwin
Sender:
Good Morning,
My understanding is that the netapp on disk is keeping track of changed
blocks, but that backup software that is written the backup to tape understands
files. So the backup software is reading the whole file including both the
unchanged blocks and the changed blocks and
On Tue, Jul 27, 2010 at 9:27 AM, Len Boyle len.bo...@sas.com wrote:
Good Morning,
My understanding is that the netapp on disk is keeping track of changed
blocks, but that backup software that is written the backup to tape
understands files. So the backup software is reading the whole file
moving the whole file around.
But the complexity of the backup meta data increases.
From: Ed Wilts [mailto:ewi...@ewilts.org]
Sent: Tuesday, July 27, 2010 10:43 AM
To: Len Boyle
Cc: VERITAS-BU@MAILMAN.ENG.AUBURN.EDU
Subject: Re: [Veritas-bu] NDMP backups from Netapp using Netbackup
On Tue, Jul
On Tue, Jul 27, 2010 at 9:56 AM, Len Boyle len.bo...@sas.com wrote:
With the new backup support for what was called pure disk the backup data
is going to disk and only the changed blocks. But if I understand things the
netapp would have to have code installed on it that would understand the
We used to get HORRIBLE (8MB/s ish) performance doing CIFS backups of our
NetApp filer, and I was pretty sure Symantec recommended against doing our
backups that way (this was 3 years ago or so). We do backup exclusively to tape
though so maybe that makes the difference.
Also I didn’t think
On Tue, Jul 27, 2010 at 11:37:20AM -0400, Shawn Plummer wrote:
Also I didn?t think NTFS permissions were restored correctly when using CIFs
shares as your backup source.
Barring any bugs, they are. Both NTFS and UNIX security is backed up
and restored via CIFS.
Only UNIX security is backed
: Re: [Veritas-bu] NDMP backups from Netapp using Netbackup
We used to get HORRIBLE (8MB/s ish) performance doing CIFS backups of
our NetApp filer, and I was pretty sure Symantec recommended against
doing our backups that way (this was 3 years ago or so). We do backup
exclusively to tape
On Tue, Jul 27, 2010 at 3:29 PM, Martin, Jonathan jmart...@intersil.comwrote:
We get poor performance (4MB/sec) performance running NFS mounts on our
FAS 2040, but we’ve found we can run many simultaneous streams and get that
into the 20+MB/sec range. We’ve got one Sun device we run 16
: Re: [Veritas-bu] NDMP backups from Netapp using Netbackup
On Tue, Jul 27, 2010 at 3:29 PM, Martin, Jonathan
jmart...@intersil.com wrote:
We get poor performance (4MB/sec) performance running NFS mounts on our
FAS 2040, but we've found we can run many simultaneous streams and get
There is or was an 'issue' with NDMP where the dump levels for
incrementals rolled past 9 and went back to 0, causing a full and it would
stay at dump level 0 until the next scheduled full ran. I cannot find a
technote or any documentation on it, but I believe it was related to
cumulative incs
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