Avago Technologies LSI SAS 3041E-R - Manual (Page 77)

Installing the Fusion-MPT Linux Device Drivers 3-37
Version 1.3 Copyright © 2001, 2002, 2007 by LSI Logic Corporation. All rights reserved.
3.5.7 Troubleshooting
If you have compiled your Linux kernel with /proc file system support,
you can examine SCSI devices using this command:
$ cat /proc/scsi/scsi
A summary of attached/recognized Fusion-MPT adapters can be
examined with the following command:
$ cat /proc/mpt/summary
The driver version is stored in:
$ cat /proc/mpt/version
If an LSI Fibre Channel RAID subsystem is attached to the system, some
of the standard Linux SCSI devices that show up will not be accessible,
depending on the exact configuration of the RAID controller(s). For
example, if you have dual active controllers in one subsystem with 8
active LUNs configured for each controller, all 16 LUNs will be visible
through each controller (32 SCSI devices total), although only 8 LUNs
will actually be accessible from each controller. There is currently no
filtering out of the entries that are visible but not accessible.