Daniel:

Hi.

Look on page 453 of the 5.3 System Admin Guide. The section is titled "Determining the number of tapes for the backup".

I quote:

"If you start the dump command through rsh, you do not see the prompts from the filer and the dump command cannot be completed because of the lack of tapes."

We had the same problem. As soon as we started doing multi-tape dumps, our perl script which had rsh issuing the dump command failed. I issued the same command on the console, was prompted for the second tape, and then the dump successfully completed.

Michael Homa Academic Computing and Communication Center University of Illinois at Chicago

On Fri, 7 Sep 2001, Daniel Oxenhandler wrote:

Toasters,

We are backing up an F-740, running ONTAP 5.3.6R2, with dump commands executed from a Solaris host using rsh. There is a Sun L9 stacker (DLT8000) directly attached to the filer. Recently, one of the qtrees exceeded the capacity of one tape. We are attempting to do a multi tape backup using the following syntax:

rsh filer dump 0ubf 63 urst0a,urst0a /vol/vol0/home

but the backup still fails at around 50GB when the first tape fills up:

DUMP: Thu Sep 6 15:35:15 2001 : We have written 51991386 KB to tape. DUMP: Thu Sep 6 15:40:15 2001 : We have written 54129100 KB to tape. DUMP: Dumping tape file 2 on urst0a DUMP: Thu Sep 6 15:45:34 2001 : We have written 54896885 KB to tape. DUMP: Tape file 2 begins with blocks from inode 5777316 DUMP: Tape write failed. DUMP: DUMP IS ABORTED DUMP: Deleting "/vol/vol0/../snapshot_for_backup.381" snapshot.

Any ideas?

Daniel Oxenhandler Senior Network Engineer Sprint Laboratories 650-375-4281