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I'm running FreeBSD 7.2, with Seagate Cheetah (Model ST####) drives.

We are having some problems with the SCSI drives on these machines. Our vendor says that updating the firmware on the drives may fix the problems, and a firmware update did seem to fix some SCSI problems on another FreeBSD host.

How can I view the firmware version of these drives? I tried some tips from nixCraft, but nothing has worked so far. In dmesg, I see the Make and Model, but no firmware revision.

In Linux, this information is often in /var/log/dmesg (Although /var/log/dmesg is sometimes out of date), or I often find this information with something like sudo lshw -class disk, lshal or dmidecode.

Update: Wed May 26 12:00:09 PDT 2010

Well, turns out I was wrong. Or a little misled. 'dmesg' will show the firmware version, provided that the files at /var/log/ and /var/log/dmesg.yesterday haven't been clobbered by the log rotation. I also didn't recognize that '0003' stood for the firmware revision.

# grep -i seagate /var/log/*
/var/log/ <SEAGATE ST3300655LC 0003> Fixed Direct Access SCSI-3 device 
/var/log/ <SEAGATE ST3300655LC 0003> Fixed Direct Access SCSI-3 device

The fields listed here are <"Make" "Model" "Firmware">.

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up vote 3 down vote accepted

Much like on Linux this data may be in your dmesg output (depending on your disk controller: a hardware RAID controller may not pass the firmware data through for an array).

If it's not you can install dmidecode from ports (sysutils/dmidecode) - that should get you what you need. ipmitool is also an option, but probably less likely to get you the data you're looking for.

If you're using a hardware RAID controller your controller firmware will probably tell you what firmware the drives are running, but flashing the drives would be a different can of worms...

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You are right! It is in dmesg, provided that /var/log/ and /var/log/dmesg.yesterday are not out of date (Unfortunately, the /var/log/dmesg.* files on my test system are from March...) – Stefan Lasiewski May 26 '10 at 18:59
Yup - dmesg output tends to get stale. When I'm looking for this kind of data I tend to bounce the system in a maintenance window to make sure I'm not looking at something way out of date (especially with hot-swap disks) – voretaq7 May 26 '10 at 20:58
On a default FreeBSD installation, the dmesg messages from boot should be recorded in /var/run/dmesg.boot. – coneslayer May 28 '10 at 17:42

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