What sort of support exists for manipulating tape libraries on a filer? I have an F740 running 6.1.2R1 in a heavy EMC environment using EDM for tape backup. I'm assuming EDM (being an EMC product) will not play well with the Netapp. I can attach an old Exabyte EXB-220 tape library (Mammoth-1 drive, 20 slots) to the F740's on-board SCSI. Given that there is no other backup hardware or software available, what can I do for backups? Is there an "mt" or other DOT command to control the robotics? The filer will eventually hold about 300GB, but I only need a short-term solution for now. First time with a direct-attached tape library... the docs don't say much about tape library support, only tape drives.
On Mon, 11 Mar 2002, Brian Tao wrote:
First time with a direct-attached tape library... the docs don't say much about tape library support, only tape drives.
The na_storage man page mentions "media changers" (must be the fancy new name for "tape libraries" ;-)), so it seems that DOT will recognize those devices, at least. Is there something to "mt" I'm missing, or some NDMP command set I can use? What I want to be able to do are the following:
* unattended level 0 dump of a large backup set, and have the Netapp automatically split the dump over multiple tapes
* unattended full restore of a multi-tape dump
* selective directory/file restore via interactive file selection or passing of pathnames on command line
* loading/unloading tapes in specific slots (e.g., full dump on tapes in slots 0 to 18, then daily differentials on slot 19 only)
I don't need job scheduling or barcode support or tape cloning or anything that would require a commercial backup software package... i.e., I need something free and simple that I can whip up in a shell or Perl script. :)
"Brian Tao" taob@risc.org wrote in message news:Pine.GSO.4.40.0203110057090.3592-100000@tor-dev1.nbc.attcanada.ca...
- unattended level 0 dump of a large backup set, and have the Netapp automatically split the dump over multiple tapes
rsh filer dump [options that I don't remember offhand] nrst0a urst0a urst0a or something similar. That will span the tapes but doesn't give you any real feedback on how many tapes were used or what the final head position was.
- unattended full restore of a multi-tape dump
something similar is about as good as you'll get from the standard tools.
- selective directory/file restore via interactive file selection or passing of pathnames on command line
You could write a wrapper around your rsh command and do it that way, but again theres nothing built-in.
- loading/unloading tapes in specific slots (e.g., full dump on tapes in slots 0 to 18, then daily differentials on slot 19 only)
ndmp_tools has some support for changing tapes in a library but last time I tried it I didn't get very far.
Chris