- NDMP-compliant NetWorker
. . . stable, and the NDMP work rather well. The only drawback to NDMP, and this isn't Veritas' fauly, is that you cannot have multiple save streams from the filer to the tape unit. NDMP only allows ONE stream from ONE filer. This is a bit of bummer because the DLT drives work better when you have a lot of streams being thrown at it, and if your filesystems on the volume you are backing up are a lot of small files and directories, the save stream from the one NDMP session can be rather anemic.
As a several-year NDMP user (BudTool), I can tell you that the lack of multiple streams is not a problem. Our filer (F630) is capable of driving a DLT7k drive (direct SCSI-attached) at 6 to 7 MBytes/sec. The NetApp folks tell me it could stream two drives at once, if we wanted to go faster (one can dump more than one volume, or qtree, at the same time).
NDMP-users, don't forget to look at QuickRestore (worksta.com), SyncSort, BakBone (NetVault), and CommVault, in addition to the Legato and Veritas products.
Regards,