Oh, that works just fine. Then you're backing up over NFS, no NDMP involved. And TSM will not back up an NFS-mounted volume by default, so you won't get multiple copies.
Put the virtualmountpoint names in the DOMAIN statement in dsm.sys of the client you want to run the backups (or create dsmc incr commands that list the sharenames, however you roll), fight through whatever permissions issues pop up, and Bob's your uncle. You'll get incremental-only backups of those files. What you won't know for a while, is how long it takes to noodle through the filesystems across the NFS mount- depends on how many kazillion objects in the directories. If you list the names in the DOMAIN statement, you can add "RESOURCEUTILIZATION 10" to the dsm.sys and process 4 shares at once, if the directory noodling is more time consuming than the actual data transfer, which it usually is if these shares are made of a lot of small files. If you can't get through them by running 4 at a time, I've solved that before by setting up multiple proxy clients (using GRANT PROXYNODE), to get even more parallel streams running, but with all the backups stored under 1 nodename so that it's easy to find them at restore time. W -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Dury, John C. Sent: Friday, February 14, 2014 3:46 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] file system backups of a Dell NDMP Equallogic device We are more concerned about file level backups than an image backup. Eventually the NAS devices will be replicating using Equallogic replication once we get some more storage but for now, we want to make sure that the files in the NFS shares are correctly backed up but I really wanted to avoid backing up the same NFS data to multiple TSM nodes since some of the NFS mount are shared amongst several servers/nodes. My strategy is to pick one TSM node and make sure it has NFS mounts for all of the NFS that live on the NAS and then just backup it up as virtualmountpoint(s) so something like this /NAS exists off of root on TSM node and is local mount NFS1 as /NAS/NFS1 mount NFS2 as /NAS/NFS2 etc put entry in dsm.sys virtualmountpoint /NAS and then just let incrementals run normally. All restores would need to be done on the NODE that can see all of the NFS mounts. Think that will work? I agree with Wanda. Our strategy for our filers (BlueARC, Isilon) is to backup at the file-level exclusively, using NFS. Modern TSM servers support no-query restores well enough that we can get a restore of the latest data very quickly (make sure you have plenty of CPU and memory, along with very fast database disks). To perform the backups efficiently, you might want to think about splitting your data up into separate nodes or filespaces, backed up with independent schedules, so that you're not bottlenecked on a single component. As far as I can tell, NDMP was written by storage vendors to make one buy more expensive storage, and more of it than one needs. You don't have to use tape. You can do NDMP backups via TCP/IP to your regular TSM storage pool hierarchy. But AFAIK you still have to do it at the volume/share level that the NAS device understands, I don't think you can do it at the root. Using "virtualmountpoint" is for backing up incrementally at the *file* level via NFS or CIFS mounts, not NDMP, so I'm not sure which way you are headed. Question is, what are you doing this for? NDMP is a stupid, simplistic protocol. You won't like what you have to do to achieve an individual file restore. If you are trying to get DR capability to rebuild your NDMP shares in case of an emergency, it makes sense. If you are just trying to provide backup coverage to restore people's files like you would from a file server, it may not. If you want to do NDMP via TCP/IP instead of direct to tape, reply with your TSM server platform and server level, and I'll send you back the page reference in the manual you need... W -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of Dury, John C. Sent: Thursday, February 13, 2014 2:11 PM To: ADSM-L AT VM.MARIST DOT EDU Subject: [ADSM-L] file system backups of a Dell NDMP Equallogic device We have two Dell NDMP storage devices and a TSM server at both sites. We'd like to be able to root file level (image backups don't help much) backups (and restores if necessary) of the entire NDMP device to the local TSM server. Can someone point me in the right direction or tell me how they did it? NAS/NDMP is pretty new to me and from what I have read so far, the documentation talks about backing up directly to tape, which we don't have any more. All of our storage is online. What I was originally planning on doing, was creating all of the NFS shares on one linux server, and backing them up as /virtualmountpoints. I'd like to setup just one which points to the root of all the NFS systems on the NAS device but I see no way to do that either. Any help is appreciated. Op 13 feb. 2014, om 20:11 heeft Dury, John C. <JDury AT DUQLIGHT DOT COM> het volgende geschreven: > We have two Dell NDMP storage devices and a TSM server at both sites. > We'd like to be able to root file level (image backups don't help > much) backups (and restores if necessary) of the entire NDMP device > to the local TSM server. Can someone point me in the right direction > or tell me how they did it? NAS/NDMP is pretty new to me and from what > I have read so far, the documentation talks about backing up directly > to tape, which we don't have any more. All of our storage is online. > > What I was originally planning on doing, was creating all of the NFS > shares on one linux server, and backing them up as > /virtualmountpoints. I'd like to setup just one which points to the > root of all the NFS systems on the NAS device but I see no way to do that > either. > Any help is appreciated. if supported by the Dell, NDMP to disk is even simpler than NDMP to tape... just don't define any paths from the datamover to tape (which you don't have any way).... -- Met vriendelijke groeten/Kind Regards, Remco Post r.post AT plcs DOT nl +31 6 248 21 622