Failover at the raid system, Section “failover at the, 4 failover at the raid system – FUJITSU CentricStor V3.1D User Manual

Page 541

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U41117-J-Z125-7-76

541

Explanation of console messages

Message complexes

9.3.4

Failover at the RAID system

SXSD018

shd<k>t<ctl>: Target vanished

or

SXSD015

shd<k>t<ctl>: cmd "Write or Read" @ blk <number> key "Not Ready" (0x02) asc
"Drive Not Ready" (0x04) ascq 0x02

WARNING

followed by

SXVD004

vdrv<n> (FAILOVER): int switching

SXVD001

vdrv<n> (FAILOVER): switch 0:4->1:5

but not followed directly by another “switch” message.

Meaning
Normal failover. If one of the two RAID controllers (each CX500/CX3-20 has 2 of them) or
the corresponding cable fails then this message sequence is displayed.The RAID disk array
involved is the disk array with the next highest minor number:

Example (vdrv6)

$ ls -l /dev/vdrv
total 0
brw------- 1 root other 76, 13 May 15 15:44 raid100.b
crw------- 1 root other 76, 13 May 15 15:44 raid100.c
brw------- 1 root other 76, 26 May 15 15:44 raid101.b
crw------- 1 root other 76, 26 May 15 15:44 raid101.c
brw------- 1 root other 76, 39 May 15 15:47 raid102.b
crw------- 1 root other 76, 39 May 15 15:47 raid102.c

The minor numbers here are 13, 26 and 39. The error was reported by vdrv6. Therefore the
RAID disk array involved is raid100.c (minor number 13), i.e. the first RAID disk array.
(Compare 6 of the vdrv with the minor numbers)

Response
Notify maintenance staff.

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