[SUMMARY] Quantum LTO-5 and Sun PCIe SAS HBA (fwd)

Thanks to all who replied, especially Sean Walmsley.

The solution was simple and, of course, we should have done this
before posting.

After getting the system up to the most current patch level, the
Quantum LTO-5 drive was immediately recognized by the st driver,
and a 'devfsadm -C' generated the device files under /dev/rmt.

Thanks again and sorry for using up list bandwidth for this issue.



Stanley E. Laufer
Network Administrator
School of Library and Information Science
San Jose State University

---------- Forwarded message ----------
Date: Tue, 1 Mar 2011 16:17:14 -0800 (PST)
From: Stanley Laufer <stanley.laufer@sjsu.edu>
To: sunmanagers@sunmanagers.org
Subject: Quantum LTO-5 and Sun PCIe SAS HBA

Has anyone here successfully configured a Quantum LTO-5 FH SAS tape drive
under Solaris 10?

The drive is connected to a V245 via a PCIe SAS HBA (SG-XPCIE8SAS-E-Z).

I'm looking for the necessary st.conf entries and any other relevant info.

Currently, although the SAS info is showing up in /var/adm/messages, I'm
not seeing the tape drive via 'cfgadm -al'.

And, 'devfsadm -C' simply results in an empty /dev/rmt.

Unfortunately, Quantum doesn't have any LTO-5 documentation for Solaris
(that I've been able to find), and Quantum Support apparently doesn't have
anyone on staff with Solaris knowledge.

My second question is:

In general, when connecting an external SAS device to a SAS HBA, does one
need to power down the host system first?

This was mandatory for SCSI up through Ultra320, but for SAS I'm wondering
whether or not one needs to power down the host system before connecting
or removing SAS devices from the HBA.

(For now, to play it safe, we've been powering down the host system before
connecting and disconnecting external SAS devices from the HBA).

Thanks in advance for any replies.



Stanley E. Laufer
Network Administrator
School of Library and Information Science
San Jose State University
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