On Jul 19, 2007, at 6:16 PM, Tim Mooney wrote:
First, what does /proc/scsi/scsi look like? Does the robot appear
there?
If not, it's almost certainly not going to be visible to inquire, no
matter the flags.
Next, what id AND LUN *should* the robot be appearing at? If you know
that (or can guess) AND the robot doesn't appear in /proc/scsi/
scsi, it's
likely just a matter of poking the Linux kernel and telling it to
re-examine a particular host/bus/target/lun address to see if there's
something there.
For example, if you believe the robot should appear on the same
controller
as your "lower" two drives, but at lun 1 instead of lun 0, then
look at
/proc/scsi/scsi, find out what SCSI HBA those drives are on (e.g.
something like scsi2), and then prod the kernel to examine lun 1 on
those
h/b/t/l combos:
Tim; this is very informative. I realized I had failed to connect up
a f/c cable for the robotic controller, so I did that, then I power
cycled the tape library and rebooted the server. I also set the
bootparam to use 8 SCSI devices and I downloaded that SCSI utility,
but it doesn't tell me what I need to know. The "inquire -l" command
shows five Qualstar devices (which makes sense because there's four
LTO-3 drives in it, plus the controller), but all the device files
show the same thing from that sq_inq utility and "inquire -l". When I
run jbconfig, it can't still find the tape library.
To answer Darren's questions, this is a new Qualstar TLS-88132 with
four LTO-3 drives in it. This tape library has only one fibre channel
port going out of it, so I connected it to a Qlogic SANbox Express
1400 f/c switch and I have five cables running from the switch to the
Linux server.
Here's what "inquire -l" says ...
[email protected]:QualstarVFS212 T522|Processor, /dev/sg3
S/N: 100000501300301f0000
WWNN:
600501300000301F0000000000000000
PORT:00000001
[email protected]:QualstarVFS212 T522|Processor, /dev/sg4
S/N: 100000501300301f0000
WWNN:
600501300000301F0000000000000000
PORT:00000001
[email protected]:QualstarVFS212 T522|Processor, /dev/sg5
S/N: 100000501300301f0000
WWNN:
600501300000301F0000000000000000
PORT:00000001
[email protected]:QualstarVFS212 T522|Processor, /dev/sg6
S/N: 100000501300301f0000
WWNN:
600501300000301F0000000000000000
PORT:00000001
[email protected]:QualstarVFS212 T522|Processor, /dev/sg7
S/N: 100000501300301f0000
WWNN:
600501300000301F0000000000000000
PORT:00000001
and /proc/scsi/scsi contains the following info for this tape library:
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: Qualstar Model: VFS212 Rev: T522
Type: Processor ANSI SCSI revision: 03
Host: scsi5 Channel: 00 Id: 00 Lun: 00
Vendor: Qualstar Model: VFS212 Rev: T522
Type: Processor ANSI SCSI revision: 03
Host: scsi6 Channel: 00 Id: 00 Lun: 00
Vendor: Qualstar Model: VFS212 Rev: T522
Type: Processor ANSI SCSI revision: 03
Host: scsi7 Channel: 00 Id: 00 Lun: 00
Vendor: Qualstar Model: VFS212 Rev: T522
Type: Processor ANSI SCSI revision: 03
Host: scsi8 Channel: 00 Id: 00 Lun: 00
Vendor: Qualstar Model: VFS212 Rev: T522
Type: Processor ANSI SCSI revision: 03
--
Stan Horwitz
Temple University
Enterprise Systems Group
stan AT temple DOT edu
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