03-09-2009
I've had a similar experience, see below. The last contributor suggested that the problem may not be caused by the hard disk itself, but rather by an external device. In my case all servers have a cd drive. Could it be that under certain circumstances a cd/dvd could trigger this error on the hard disk.
The 3 messages listed below are from /var/adm/messages at the time the T2000 server hung. The same error occured on several T2000 servers over a period of 6 weeks. The submirrors d16 and d17 of mirror d15 were in a state of needs maintenance. The slice 0 of one disk was somehow corrupt and a simple metareplace wasn't sufficient to bring the system back up.
I also would really like to find the route cause of this error
<date> <hostname> scsi_status=0, ioc_status=8043, scsi_state=0
<date> <hostname> scsi: [ID 107833 kern.notice] Device is gone
<date> <hostname> md_stripe: [ID 641072 kern.warning] WARNING: md: d17: write error on /dev/dsk/c0t3d0s6
<date> <hostname> 1 md_mirror: [ID 104909 kern.warning] WARNING: md: d17: /dev/dsk/c0t3d0s6 needs maintenance
The servers have in the meantime been updated to the firmware listed below, also the problem has not reoccurred since then but I still dont know what lies behind the error.
System Firmware 6.6.4 Netra[TM] T2000 2008/07/01 02:01
---------------------------------------------------------
ALOM-CMT v1.6.4 Jun 6 2008 16:52:02
VBSC 1.6.4.a Jun 6 2008 05:19:51
OBP 4.28.9 2008/06/30 21:26
Hypervisor 1.6.4 2008/06/06 04:57
Netra[TM] T2000 POST 4.28.6 2008/05/23 12:34
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