Jeffrey> Does anyone that is using NDMP for file-dense restores also Jeffrey> notice a HUGE gap in time between starting the restore, and Jeffrey> data to begin moving...with no observable load/activity Jeffrey> during that odd bizzare Phase-0 period?
I'm not too surprised actually... the NDMP is really just a wrapper around the dump/restore built into OnTap, though I admit that maybe this has changed with cDOT.
In older 7-mode, it was just a single file under /root/<vol>/ that held the index of file(s) dumped to tape at which level. So I doubt it's been improved all that much since.
Jeffrey> We can see -hours- of 0% CPU, 0KB to disk (short of CP label Jeffrey> updates to them), which challenges us in other ways because Jeffrey> it brings average dataset recover speed/times to low Jeffrey> double-digit MB/sec numbers no matter how fast tape is.
Is this before or after you select the file(s) to restore? Or are you doing a full volume restore? I wonder if it's sorting the files by tape block or something like that before starting the restore.