This is how we connect our LTO drives to our SAN...
Equipment involved:
IBM 2108-R03 SAN Data Gateway Routers (3)
IBM 3584 LTO Ultrium Ultra-Scalable Tape Library (1 library w/5 SCSI drives)
McData ED-5000 Director Class Fibre Channel Switch (1)
IBM 2105 Enterprise Storage Server "Shark" (1)
IBM RS/6000 H80 "TSM 4.1 Server" (1)
All we had to do is create an "LTO Zone" on the switch. Everything inside
the zone sees everything else inside the zone. Everything outside the zone
sees everything else outside the zone. Nothing can see "THROUGH" the zone
barrier.
The only things in that zone are the three SAN Data Gateway Routers and
three of the four Fibre Channel Adapters on our TSM server (RS/6000 H80).
The other FCA in the TSM server goes to the ED-5000, but it's outside the
"LTO Zone". Instead of seeing the LTO drives, it sees our Shark, just like
every other FCA on our SAN...
Since the only server INSIDE the zone is the TSM server, it is the only
server that can see the LTO drives and the library. None of the FCAs
OUTSIDE the zone can see any of the LTO devices (5 drives + 1 library = 6
devices).
REMEMBER:
Each FCA inside the "LTO Zone" sees all LTO devices (6 objects).
We have three 2108s connecting our 6 LTO devices to our SAN.
Our TSM server has a total of FOUR FCAs (three inside the "LTO Zone" and one
outside the zone).
Given this configuration, the TSM server sees 18 devices (6 devices x 3
adapters) within AIX. From there, it's just a matter of defining the proper
devices to TSM.
Entering the "lsdev -Cc tape" command within AIX produces this output:
rmt0 Available 17-08-01-0,0 IBM 3580 Ultrium Tape Drive (FCP)
smc0 Available 17-08-01-0,1 IBM 3584 Library Medium Changer (FCP)
rmt1 Available 17-08-01-1,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt2 Available 17-08-01-2,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt3 Available 17-08-01-3,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt4 Available 17-08-01-4,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt5 Available 24-08-01-0,0 IBM 3580 Ultrium Tape Drive (FCP)
smc1 Available 24-08-01-0,1 IBM 3584 Library Medium Changer (FCP)
rmt6 Available 24-08-01-1,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt7 Available 24-08-01-2,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt8 Available 24-08-01-3,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt9 Available 24-08-01-4,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt10 Available 2D-08-01-0,0 IBM 3580 Ultrium Tape Drive (FCP)
smc2 Available 2D-08-01-0,1 IBM 3584 Library Medium Changer (FCP)
rmt11 Available 2D-08-01-1,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt12 Available 2D-08-01-2,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt13 Available 2D-08-01-3,0 IBM 3580 Ultrium Tape Drive (FCP)
rmt14 Available 2D-08-01-4,0 IBM 3580 Ultrium Tape Drive (FCP)
We define our LTO library as "/dev/smc0", and our drives as "/dev/rmt0,
/dev/rmt1, /dev/rmt7, /dev/rmt8, and /dev/rmt14". Don't forget to use the
correct element numbers when you define the devices in TSM.
Best of Luck!
Jeff Caffey
Enterprise Systems Programmer
(AIX & Storage Administrator)
Pier 1 imports, Inc. - Information Services
jlcaffey AT pier1 DOT com
Voice: (817) 252-6222
Fax: (817) 252-7299
-----Original Message-----
From: Van Ruler, Ruud R SSI-ISES-31 [mailto:Ruud.R.vanRuler AT IS.SHELL DOT
COM]
Sent: Tuesday, May 22, 2001 9:15 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: sharing 3584 LTO Tape Library
Hi
Could someone explain how access to LTO tape drives is handled by TSM 4.1
(on a AIX server) in a SAN environment ??
Library Sharing is an option but this feature is only available for NT and
SUN servers, isn't it !!!!!!??
How can we prevent TSM clients using drives already in use by other clients
??
And how can we prevent non-TSM clients/applications using drives in use by
TSM clients ??
thanks in advance
Ruud van Ruler, Shell Services International BV - ISES/31
Our Central Data Storage Management home page:
http://sww2.shell.com/cdsm/
Room 1B/G01
Dokter van Zeelandstraat 1, 2285 BD Leidschendam NL
Tel : +31 (0)70 - 3034644, Fax 4011, Mobile +31 (0)6-55127646
Email Internet: ruud.r.vanruler AT is.shell DOT com
rvanruler AT hotmail DOT com
R.vanRuler
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