Re: [ADSM-L] Celerra tape device names for NDMP

Its been a few years since I looked at a Celerra, but there should be
a command to list the devices from the Celerra's point of view. (If
nothing else, maybe a system log file?)

Once you can get this output, you should be able to figure out which
is which by comaparing the tape driver serial numbers. (Uh, the VTL
does fake serial numbers on the drives, right?)

The last time I worked with it, I used a NetApp manual and a TSM
manual, and read between the lines. (Yes, the Celerra manuals were
that bad.)

[RC]


On Mar 28, 2008, at 9:34 AM, Robben Leaf wrote:

I'm setting up NDMP backups for a Celerra; the TSM server to which
it will
be backed up is the library controller, and the library is an EMC VTL,
emulating an IBM 3584.

I've presented four tape drives to the Celerra from the VTL - one
HBA on
the Celerra is zoned to two HBA's on the VTL, and two drives are
presented
down each path. In order to correctly set up the paths on the TSM
server, I
need to know which device name on the Celerra corresponds to which
drive in
the VTL. The device names on the Celerra look like this:

c128t0l0
c128t0l1
c144t0l0
c144t0l1

Now, I know that the last two characters refer to the LUN numbers, and
since I know which drives are presented with which LUN numbers,
this gives
me a 50-50 chance of getting it right if I just guess. The c###
part seems
to be a chain or scsi controller number. Interestingly, all of the
chain
numbers I've seen from the Celerra were divisible by 16.

Does anyone know how to find a connection between the chain numbers
in the
Celerra and the port ID's or WWN's on the VTL? Or am I reduced to
making a
guess, and if it doesn't work, trying it the other way around?

If it helps, here are the WWN's and port ID's (in hex and decimal) and
adapter numbers over which the drives are presented from the VTL:

21-03-00-0d-77-fe-61-08       61.18.13          97.24.19
Adapter 1
21-03-00-0d-77-be-61-08       61.14.13          97.20.19
Adapter 3

Any help is appreciated!

Robben Leaf


U.S. BANCORP made the following annotations
---------------------------------------------------------------------
Electronic Privacy Notice. This e-mail, and any attachments,
contains information that is, or may be, covered by electronic
communications privacy laws, and is also confidential and
proprietary in nature. If you are not the intended recipient,
please be advised that you are legally prohibited from retaining,
using, copying, distributing, or otherwise disclosing this
information in any manner. Instead, please reply to the sender that
you have received this communication in error, and then immediately
delete it. Thank you in advance for your cooperation.



---------------------------------------------------------------------