From: Spammers Must Die (wsanders1@yahoo.com)
Date: Wed Feb 26 2003 - 18:04:39 EST
Iostat -En is truly useful but it seems to have had one serious bug -
the information in it is not updated consistently when drives are
swapped out or moved aroundf (except I suppose by rebooing the system.)
This applies at least to my E450 running 2.6.
I have the E450 from hell (7 disks failed in 3 weeks). Wehave replaced
six of the drives so far. The first four drives we replaced with new
disks in the same slot and the iostt -En info was updated prompty.
The fifth drive we decided to replace with a new disk in the same slot,
but then, later, we moved that drive to a different previously empty
slot. The iostat -En info never went away from the old slot, and
appeared duplicated in the new slot.
The sixth drive we replaced with a new drive in the same slot. After 30
min now, the iostat -En info for this slot still shows the info for the
old drive.
Anybody know a way to get iostat -En to rescan the drive info? Is there
a open source program out there or a Solaris command I somehow don't
know about to safely inqure the serial number info from the drive? I
hate to have invalid serial number info showing up on iostat -En.
One thing is our /dev/sd device numbers are all messed up. For some
reason the drvconfig/disks commands are not recreating that set of
links correctly. The /dev/dsk/ tree is fine.
I am sure it would be dangerous to recreate the /dev/sd links by hand
on a running system. Although if you've ever done that please tell ...
-W Sanders
http://www.wsanders.net
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