Besides tape-backups without problems I have a
backup-to-disk-job writing data to a volume. In BE the
b2d-jobs finish normal and verifies also show no errors,
pool and volume BAK both stay functional, only the
server-error-log shows the entries below:


22.03.2006 22.27.33 : COMN-3.5-1092
Severity = 4 Locus = 3 Class = 0
NSS-3.00-5001: Pool SRV-DATA/BAK_SP is being
deactivated.
An I/O error (20204(zio.c[1895])) at block 17921288(file
block -17921288)(ZID 101392) has compromised pool
integrity.

22.03.2006 22.27.33 : COMN-3.5-33
Severity = 4 Locus = 3 Class = 0
NSS-2.70-5004: Volume SRV-DATA/BAK_SV is being
deactivated.
An I/O error (20204(zio.c[1895])) at block 17921288(file
block -17921288)(ZID 101392) has compromised volume
integrity.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V043-A99-D0:1] RAID 0 Device 1" deactivated due
to driver unload.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V098-A3-D4:5] Open File Manager Synchronized
Device" deactivated due to driver unload.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V098-A3-D4:4] Open File Manager Synchronized
Device" deactivated due to driver unload.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V098-A3-D4:3] Open File Manager Synchronized
Device" deactivated due to driver unload.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V098-A3-D4:2] Open File Manager Synchronized
Device" deactivated due to driver unload.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V098-A3-D4:1] Open File Manager Synchronized
Device" deactivated due to driver unload.

22.03.2006 22.27.34 : COMN-3.5-1092
Severity = 4 Locus = 3 Class = 0
NSS-3.00-5001: Pool SRV-DATA/SYS_SP is being
deactivated.
An I/O error (20204(zio.c[1895])) at block 6624965(file
block -6624965)(ZID 101394) has compromised pool integrity.

22.03.2006 22.27.34 : COMN-3.5-33
Severity = 4 Locus = 3 Class = 0
NSS-2.70-5004: Volume SRV-DATA/SYS_SV is being
deactivated.
An I/O error (20204(zio.c[1895])) at block 6624965(file
block -6624965)(ZID 101394) has compromised volume
integrity.

22.03.2006 22.27.34 : SERVER-5.60-1533
Severity = 4 Locus = 3 Class = 6
Device "[V098-A3-D4:0] Open File Manager Synchronized
Device" deactivated due to driver unload.


From my point of view, it is ok, that "Open File Manager
Synchronized Device" gets deactivated when the job is done
(that is normal behavior also with tape-backup). My problem
are the I/O-errors, which I cannot believe to be normal.
Does anybody have an idea or experiences with those
messages?

Sincerely

Karl