Geoff -- which model, and what kind of tape drives?
In general, if the drives are fiber-attach, you'll have one (LTO) or two
(3592) fibers per drive. Run these into your network san switches and
zone the switches to logically connect the drives to the AIX system
fibers.
Run cfgmgr on AIX to acquire the drives (after installing the Atape
device driver, if it isn't already there).
In the 3584 the tape drives get a generated wwn with the last two digits
indicating column and drive within column. If you have just one frame,
or all drives are in the first frame, the column digit will be zero. The
drive digit runs from 1 (top drive) to c (bottom drive, number 12).
The library itself will be /dev/smc0 and is a second lun on the first
drive.
If you have multiple switches/fibers to the AIX box, be aware that you
will get ALL the drives on the first switch in the chain, and then the
drives on the second, and so on. This means that the /dev/rmtx numbers
will not necessarily match the wwn.
Example -- my system. 3584 with 10 LTO2. All the odd-numbered drives in
SAN switch1, all the even-numbered drives in SAN-switch2, and three
fibers to each switch from the AIX system.
/dev/rmt0 is wwn x01 drive 1
/dev/rmt1 is wwn x03 drive 3
/dev/rmt2 is wwn x05 drive 5
/dev/rmt3 is wwn x07 drive 7
/dev/rmt4 is wwn x09 drive 9
/dev/rmt5 is wwn x02 drive 2
/dev/rmt6 is wwn x04 drive 4
/dev/rmt7 is wwn x06 drive 6
/dev/rmt8 is wwn x08 drive 8
/dev/rmt9 is wwn x0a drive 10
/dev/rmt10 is wwn x01 drive 1, next host adapter (alternate
path)
And so on, through /dev/rmt59
You'll also get a /dev/smcx for each path; only /dev/smc0 is valid
unless you opted for the control path failover option on the library.
You can check the wwn for a drive with lsattr -El rmtx
Is this wat you were after, or did I just confuse the issue?
Tom Kauffman
NIBCO, Inc
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Gill, Geoffrey L.
Sent: Sunday, February 05, 2006 11:55 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: 3584 installation instructions
I'll be receiving a 3584 this week and since I'm not real familiar with
how
that guy connects to the RS/6000 I was wondering if someone has setup
instructions that define this library to AIX. Our current 3494 is direct
serial attached and I'm curious if this is the same or not. If anyone
has
saved steps to attach the unit to the server and define within AIX I
would
truly appreciate any insight.
Thanks for the help,
Geoff Gill
TSM Administrator
SAIC M/S-G1b
(858)826-4062
Email: <mailto:geoffrey.l.gill AT saic DOT com> geoffrey.l.gill AT saic DOT com
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