Legato backup of NETAPP FAS2050 using NDMP

Question

Hi, I have a Legato 7.4.4 server (called PROD52) running on a Windows server and I want to backup parts of my NETAPP server (a NAS or SAN device running ONTAP). I have to use the protocol NDMP whch I specified in the definition of the Legato client called PROD80. When I logon to my NETAPP server (with a kind of Linux OS), I see as mounted dirs: /vol/vol0/ mounted on /vol/vol0 /vol/space1/ mounted on /vol/space1 /vol/space2/ mounted on /vol/space2 PS: vol0 is the OS, space1 is an aggregate for CIFS (NAS) space2 si a volume for a LUN (SAN) Backing up the save set /vol/vol0 works fine but for a reason unknown to me, a backup of the savesets /vol/space1 and /vol/space2 do not work. So far, when such a space is configured on a Windows server as a drive letter, I can backup that drive as a normal network drive, transparant to Legato. What do I have to do to get them working to be able to restore individual files stored on those 2 spaces when I don't have such a space configured as a drive letter on a Legato client. Regards, Johan

ble1 · Accepted Answer

But if I want to restore something that is in that saveset, I have to restore the whole saveset.

That's incorrect. You can use DDAR or DAR - check docs - and that will give you chance to restore individual files without restoring whole saveset. I believe you also need DIRECT to be set - unless mistaken this is described in admin guide.

Johans2 · Answer

I forgot to include a part of the daemon.log file. Here it is:prod80:/vol/space1/I/Test3/ saving to pool 'NETAPP' (66-666) 38714 13/05/2009 13:10:46 0 0 2 2348 2344 0 s-olaf-prod52 nsrd s-olaf-prod80:/vol/space1/I/Test3/ done saving to pool 'NETAPP' (66-666) 38758 13/05/2009 13:10:46 2 0 0 2348 2344 0 s-olaf-prod52 nsrd ndmp save notice: s-olaf-prod80: /vol/space1/I/Test3/ level=full, 0 KB 00:00:03 0 file 42506 13/05/2009 13:10:46 2 0 0 2348 2344 0 s-olaf-prod52 nsrd ndmp save notice: s-olaf-prod80:/vol/space1/I/Test3/ NDMP save failed on 's-olaf-prod52.cbis.olaf' 40473 13/05/2009 13:10:46 2 0 0 4908 3996 0 s-olaf-prod52 savegrp command ' nsrndmp_save -T dump -M -s s-olaf-prod52.cbis.olaf -c s-olaf-prod80 -g NETAPP -l full -LL -q -W 78 -N /vol/space1/I/Test3/ /vol/space1/I/Test3/' for client s-olaf-prod80 exited with return code -1. 32496 13/05/2009 13:10:46 2 0 0 4908 3996 0 s-olaf-prod52 savegrp job (170721) host: s-olaf-prod80 savepoint: /vol/space1/I/Test3/ had ERROR indication(s) at completion. Unable to render the following message: savegrp:NETAPP * s-olaf-prod80:/vol/space1/I/Test3/ See the file C:\Program Files\Legato
sr	mp\sg\NETAPP\sso.000004 for output of the job.7341 13/05/2009 13:10:46 2 0 0 4908 3996 0 s-olaf-prod52 savegrp s-olaf-prod80:/vol/space1/I/Test3/ failed. 38718 13/05/2009 13:10:48 0 0 2 2348 2344 0 s-olaf-prod52 nsrd s-olaf-prod52.cbis.olaf:index:s-olaf-prod80 saving to pool 'NETAPP' (66-666) 38714 13/05/2009 13:10:49 0 0 2 2348 2344 0 s-olaf-prod52 nsrd s-olaf-prod52.cbis.olaf:index:s-olaf-prod80 done saving to pool 'NETAPP' (66-666) 1 KB 38758 13/05/2009 13:10:49 2 0 0 2348 2344 0 s-olaf-prod52 nsrd savegroup failure alert: NETAPP Completed/Aborted, Total 1 client(s), 0 Clients disabled, 0 Hostname(s) Unresolved, 1 Failed, 0 Succeeded.

ble1 · Answer

If I remember correctly NetApp will do snapshot of the data you wish to backup. Can you check ndmp side for log?

Johans2 · Answer

I want to do a file by file backup of the data stored on /vol/space1 which is configured as a NAS. The snap-technology of NETAPP takes backups of volumes i think not of files. I want to be able to restore individual files.

My Jukebox is connected to the Legato server; the NETAPP is on the same subnet and speaks NDMPM over the network with the Legato server. I want to use Legato to backup that part of the disk of the NETAPP.

I don't understand what you mean by check ndmp side for log ?

ble1 · Answer

Well, you can restore individual file of course even if you do snap - that's not problem.

NW doesn't have agent running on NetApp, instead there is ndmpd service which has its own log. Can you check that log?

Johans2 · Answer

I have created a volume on my NETAPP called /vol/test/Qspace_TEST which is shared a as 'test'. I can do a 'net use' from my PC to \netappserver	est. I am now copying some dummy data to that share. ndmpd is running on my NETAPP ONTAP server and I have defined a NDMP Legato client on my Legato server. The Jukebox is not connected to the NETAPP and is not configured as a SCSI NDMP device but just as a SCI autodetected. Once the dummy data is copied, I will try to make a backup of the saveset /vol/test/Qspace_TEST. I think that this will work. But if I want to restore something that is in that saveset, I have to restore the whole saveset. If that works, I have already something. But whatt i am interested in is a way of backing up that space on NETAPP in a file by file way so i can restore files individually if asked for. I still don't see how to do.

Johans2 · Answer

The options set in my NDMP Legato client are:

DIRECT=y
HIST=y
UPDATE=y
UTF8=y

I am curious if I will be able to browse through the index to see the files in the /vol/test/Qspace_TEST. I let you know on monday.

Johans2 · Answer

The Networker dpcumentation concerning NDMP/DSA/DAR is very confusing... but it works.

Johans2 · Answer

The Networker documentation concerning NDMP/DSA/DAR is very confusing... but it works.

Johans2 · Answer

Hi,You are right. I am very impressed by the way how that type of a backup/restore works.The backup is not a file by file backup but in the logfile it looks like a dumpfs backup in UNIX (using DAR). Using LTO3 tapes, i received 160Gb/h. And yes, Networker user can restore file by file.... Great !Rgds,Johan

NetWorker

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