We use ATL for our production site's 3590 drives and use native 3590
drive at the DR site. The SMS ACS rules need to be altered to remove any
attempt at SMS control of tapes in our case. Also we prevent the OAM STC
from starting at the DR site. We use HSM tapecopy to create copies of
our ML2 tapes and have a small procedure to run through to tell HSM to
use its alternate 3590s, which of course are sent offsite daily with the
DR tapes. I will check, but I don't believe that we disconnect the tape
catalogs.
Paul Gillis
Dee Shrier wrote:
Real tapes in a tape robot do not change in the BCS if they are
cataloged and the tape catalog (TMC, VMF, whatever your TMS calls your
tape catalog) does not change because the dataset does not change tape
volumes. If you are restoring in-sync backups of your BCS and TMC then
you should be all right at the DR site. You may be thinking of ejecting
tapes from the tape robot but that does not effect the BCS. The
ejection process may adjust some information in the TMC as far an any
robotic location information is concerned but that would not force you
to do anything special at the DR site to make the tape usable. For HSM
tapes, if you are restoring your HSM CDSs then you should be good to go.
Virtual tapes are a little different story. How you externalize the
virtual tape dataset would have an effect on what you need to do at the
DR site. If you move the virtual tape dataset to a real tape then the
BCS, TMC and HSM CDSs should be kept in-sync by that process and you
would not have any special setup issues at the DR site. If you are
making an uncataloged copy of a cataloged tape dataset then you would
need to recatalog it in the restored BCS at the DR site if you plan to
use catalog management for allocating the tape dataset. If you're
intention is to move the tape dataset into a virtual environment at the
DR site then you would need to move the tape dataset from the real tape
to the new virtual box before you can use it. Once again, the tape
restoration procedure you use should keep the BCS and TMC in-sync. As
for making and using a DR copy of a virtual HSM tape and the attendant
issues involved with that, well, someone else would need to help you
answer that because I'm not an HSM administrator.
Dee Shrier
Dino-Software Corporation
1-800-480-3466
(1-800-480-DINO)
www.dino-software.com
Daniel A. McLaughlin wrote:
We recently moved our ATL into production and are doing DR and HSM
activity inside. I vaguely remember from a past life that tapes
assigned to
the ATL have to be disconnected or exported from the tape/catalog before
being used outside, such as at DR where we have no ATL?
Would someone be able to confirm that or tell me where I might find
more info?
Much appreciated.
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