On 2/03/2010 2:40 AM, Dan Nelson wrote:
In the last episode (Mar 01), Omer Faruk Sen said:
(da0:isp1:0:0:6): Vendor Specific ASC
(da0:isp1:0:0:6): Unretryable error
(da0:isp1:0:0:6): READ(10). CDB: 28 0 0 0 0 10 0 0 1 0
(da0:isp1:0:0:6): CAM Status: SCSI Status Error
(da0:isp1:0:0:6): SCSI Status: Check Condition
(da0:isp1:0:0:6): ILLEGAL REQUEST asc:94,1
(da0:isp1:0:0:6): Vendor Specific ASC
(da0:isp1:0:0:6): Unretryable error
According to the "DS4000 Problem Determination Guide" at
ftp://ftp.software.ibm.com/systems/support/system_x_pdf/gc27207600.pdf#page=104
, ASC/ASCQ 94/01 corresponds to "Invalid Request Due to Current Logical Unit
Ownership". Maybe the DS4800 thinks that the lun has been assigned to a
different host, and that's why it won't let the FreeBSD machine access it.
Other web searches indicate that this may be an attempt to access the
passive path of multipathed device on an active/passive RAID array. If
that's the case, FreeBSD should have found another disk (da1 possibly?) that
you should be able to use.
That being the case, it's also possible that the LUN is accessible to
the FreeBSD system, but another application or system has applied a
SCSI-2 "reservation" or a SCSI-3 persistent reservation to the disk;
that would prevent the FreeBSD system from accessing the LUN.
Perhaps see what servers or devices the DS4800 thinks is connected to
the LUN.
Dave.
--
David Rawling
PD Consulting And Security
Mob: +61 412 135 513
Email: d...@pdconsec.net
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