Filter
Top Products
208
EMC Host Connectivity with QLogic FC and iSCSI HBAs and FCoE CNAs for the Linux Environment
Additional Notes
(VNX series or CLARiiON Only) disconnected ghost LUNs
When a Linux host is attached to both SPs in a VNX series or
CLARiiON storage system, the driver will report a disconnected
LUN 0 on SPB and a failure to read the capacity of the device. The
Unisphere/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