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(CLARiiON Only) disconnected ghost LUNs
113
Additional Notes
(CLARiiON Only) disconnected ghost LUNs
When a Linux host is attached to both SPs in a CLARiiON storage
array, the driver will report a disconnected LUN 0 on SPB and a
failure to read the capacity of the device. The Navisphere
®
Host
Agent requires that disconnected LUN 0 be reported properly. A
device file name is allocated to the disconnected LUN 0 in the
/dev
filesystem, but the device cannot be mounted, partitioned, or
otherwise accessed.
Here is an example of a disconnected LUN 0 being reported:
Jul 17 14:35:57 l82bi134 kernel: sdb : READ CAPACITY failed.
Jul 17 14:35:57 l82bi134 kernel: sdb : status = 1, message = 00, host = 0,
driver = 28
Jul 17 14:35:57 l82bi134 kernel: Current sd00:00: sense key Illegal Request
Jul 17 14:35:57 l82bi134 kernel: Additional sense indicates Logical unit not re
dy,cause not reportable
Jul 17 14:35:57 l82bi134 kernel: sdb : block size assumed to be 512 bytes, disk
size 1GB.
Jul 17 14:35:57 l82bi134 kernel: sdb: I/O error: dev 08:10, sector 0
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 2
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 4
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 6
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 0
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 2
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 4
Jul 17 14:35:58 l82bi134 kernel: I/O error: dev 08:10, sector 6
Jul 17 14:35:58 l82bi134 kernel: unable to read partition table
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