Networker

Re: [Networker] NDMP 7.2

2005-10-26 10:48:49
Subject: Re: [Networker] NDMP 7.2
From: "N.J.Tustain" <N.J.Tustain AT OPEN.AC DOT UK>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Wed, 26 Oct 2005 15:44:14 +0100
We have two filers, take snapshots on the first, snapmirror then take
backups of the snapshot.

I'll test with the extra parameter.

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of Matthew Huff
Sent: 26 October 2005 12:44
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] NDMP 7.2


Why do you have the snapshot in the saveset definition? The nsrndmp_save
will create snapshots during the backup automatically. Try adding
"DIRECT=Y" to the App Info and see if it makes a difference.

BTW, we backup around 7TB but we have broken up the savesets by doing
the backups by qtree savesets which increases the parallelism 


--
Matthew Huff           | One Manhattanville Rd
Director of Operations | Purchase, NY 10577
OTA LLC                | Phone: 914-460-4039 
mailto:mhuff AT ox DOT com    | Fax:   914-460-4139   
-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of N.J.Tustain
Sent: Wednesday, October 26, 2005 4:11 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] NDMP 7.2

One point I didn't mention is our smallest NDMP client (10GB) backups up
successfully. I think this proves it isn't a configuration issue.

Saveset: /vol/serv1vol_dst/.snapshot/serv1.monday
Backup Command: nsrndmp_save -T dump
App Info: NSR_NDMP_TMP_DIR=E:\nsr\tmp HIST=y UPDATE=y

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of Matthew Huff
Sent: 25 October 2005 17:14
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] NDMP 7.2


What does your NetApp client configuration look like?

What does your "backup command:" set to?
What is your "Application Information:" set to?
What is your "Save set:" set to?

----
Matthew Huff       | One Manhattanville Rd
Dir of Operations  | Purchase, NY 10577
OTA LLC            | Phone: 914-460-4039
www.otaotr.com     | Fax: 914-460-4139   



 

> -----Original Message-----
> From: Legato NetWorker discussion 
> [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Kilpatrick, Mark
> Sent: Tuesday, October 25, 2005 12:01 PM
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] NDMP 7.2
> 
> The interesting thing here is that your backups ran correctly before
> the upgrade. I am going to run a test on our old system to compare the

> difference in time (networker 7.1.3).
> 
> My backup just spent 30 minutes appearing to do nothing. Then it
> started to write to disk. If my 120,000 files took 30 mins then your 
> ten million files could take approx 20 hours.
> 
> Can you try a smaller volume specified in the saveset? I will let you
> know how my test with 7.1.3 goes.
> 
> -----Original Message-----
> From: N.J.Tustain [mailto:N.J.Tustain AT OPEN.AC DOT UK]
> Sent: 25 October 2005 14:17
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: Re: [Networker] NDMP 7.2
> 
> Stan/Mark,
> 
> Thanks for the responses.
> 
> We are running Networker nw_7_2_LGTpa69733.Build.6 Eval, which at the
> time of installation I believe was the latest version plus a fix for a

> portmapper vulnerability. Since we've added subsequent patches: 
> 75442,72402,75831.
> 
> We have 3 NDMP clients the largest being 110GB, but with 10million
> files!
> 
> Our Filer is a NetApp F810, running NDMP version 3, which is still
> apparently supported.
> 
> This all worked fine until the Networker upgrade. Apparently 7.2 now 
> deals with NDMP backups in a modified way utilising disk as opposed to

> memory, to increase backup performance! Our ...\nsr\tmp directory now 
> requires over 4GB of free space and also

> apparently only supports up to
> 15 levels (not sure if that's a new feature)
> 
> I'm fairly sure the nothing is happening, twice I've set the backup
> running...checking late at night (were the data component was
> completing) in the morning the group is still active, but nothing is 
> happening....so its been left for around 8 hours.
> 
> I noticed that when a backup is set running, before a backup rate is
> indicated against a drive it shows 192KB, that is still the case.
> 
> In an attempt to secure to tape I've started using the Filers' 'dump'
> command, although I haven't been able to perform a test restore.
> 
> Thanks
> Nick
>   
> 
> -----Original Message-----
> From: Stan Horwitz [mailto:stan AT temple DOT edu]
> Sent: 25 October 2005 12:51
> To: Legato NetWorker discussion; N.J.Tustain
> Subject: Re: [Networker] NDMP 7.2
> 
> 
> 
> On Oct 25, 2005, at 3:36 AM, N.J.Tustain wrote:
> 
> > Hello,
> >
> > Since upgrading to 7.2 we've had trouble backing up our
> NDMP clients.
> > Since the upgrade, we've patched Networker
> (75442,72402,75831), which
> > changed the behaviour. The present issue appears to be, the
> local data
> 
> > part of the backup writes to tape, but the index isn't
> written back to
> 
> > the NW server. The group sits active with no activity, although
> > nsrndmp_save and nsrndmp_2fh processes are still running.
> >
> > Has anyone else had similar problems and found a workaround?
> 
> Are you running NetWorker 7.2.1? What kind of NAS are you working
> with? I am running NetWorker 7.2.1 and NDMP backups work fine, as do 
> recovers. I  did have a problem with a test I did of backing up NDMP 
> data to non-NDMP tape devices where the backup succeeded, but the 
> recover failed. This is with using a Mirapoint message store as the 
> NDMP client.
> 
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