Hi Tim,
I am lagging the list but will try to help with this one.
Partitioning was discussed and your assumtions are correct. No need to
discuss it.
Library Sharing - I've found no word about "Library Sharing over LAN",
only "Library Sharing in a SAN"! Maybe you are misled by some info
regarding LAN-controlled libraries like 3494 (I am just guessing).
You can use twin-tail SCSI (LVD supports it) and put two initiator
devices/SCSI controllers on the SCSI bus. SAN does the same but over
fibre. After you can access drives and robot from both hosts, read the SAN
sharing parts of the manual - you have a SCSI SAN :-)
Zlatko Krastev
IT Consultant
"Rushforth, Tim" <TRushforth AT WINNIPEG DOT CA>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
09.04.2003 00:16
Please respond to "ADSM: Dist Stor Manager"
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Subject: 3584 Tape Sharing
We are running TSM 5.1.6.1 and have a 3584 connected via LVD SCSI (Adaptec
39160 controller) - no SAN. We are looking at setting up another server
and
are exploring the Sharing possibilities. We currently have LTO1 drives
and
are also exploring upgrading/adding LTO2 drives. I've searched this list,
Red Books and TSM doc and still have some questions.
One option is to partition the 3584 into 2 logical libraries and have a
SCSI
connection from each server to the 3584 to the first drive in the logical
partition.
This would allow us to put LTO1 drives in one partition and LTO2 drives in
the other, each being used by a different server. Is anyone doing
something
similar - how do you handle tape protection between the two servers (if
same
type of tape in each partition)?
The other option is to use TSM Library Sharing and this is where I have
questions:
TSM Extended Edition has a feature called Library Sharing over LAN (for
libraries that support this function)
- Does the 3584 support this? Any doc I see seems to say a SAN is
required?
With Library Sharing, can I have a mix of LTO1 and LTO2 drives
(partitioned
into two logical libraries becasue I am at 5.1) and share these 2 logical
libraries?
Thanks,
Tim Rushforth
City of Winnipeg
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