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Full Discussion: Solaris disk error
Operating Systems Solaris Solaris disk error Post 302295705 by conor01 on Monday 9th of March 2009 10:21:49 AM
Old 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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LEARN ABOUT NETBSD

esiop

ESIOP(4)						   BSD Kernel Interfaces Manual 						  ESIOP(4)

NAME

     esiop -- Enhanced Symbios Logic/NCR 53c8xx SCSI driver

SYNOPSIS

     esiop* at pci? dev ? function ?
     options SIOP_SYMLED
     scsibus* at esiop?

DESCRIPTION

     The esiop driver provides improved support over siop(4) for the Symbios Logic/NCR 53x8xx series of SCSI controller chips:

	   -   53c825 and 53c825a (Fast-Wide SCSI)
	   -   53c875 and 53c875j (Ultra-Wide SCSI)
	   -   53c876 (Dual Ultra-Wide SCSI)
	   -   53c885 (Ultra-Wide SCSI and Ethernet)
	   -   53c895 (Ultra2-Wide SCSI)
	   -   53c896 (PCI 64bit, dual Ultra2-Wide SCSI)
	   -   53c1010-33 (PCI 64bit, dual Ultra160 SCSI)
	   -   53c1510d (PCI 64bit, dual Ultra2-wide SCSI)
     Older adapters are supported by the siop(4) driver.

     The SIOP_SYMLED option causes the driver to report SCSI activity on the GPIO pin 1, which is connected to the activity LED on some adapters.
     At this time only the 53c895 based Symbios and Tekram adapters are known to require this.

SEE ALSO

     cd(4), ch(4), intro(4), pci(4), scsi(4), sd(4), siop(4), st(4), uk(4)

HISTORY

     The esiop driver first appeared in NetBSD 1.6.

AUTHORS

     The esiop driver was written by Manuel Bouyer <Manuel.Bouyer@lip6.fr> for NetBSD.

BSD
								  April 23, 2002							       BSD
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