I am having trouble getting ZFS to behave as I would expect.
I am using the HP driver (cpqary3) for the Smart Array P400 (in a HP Proliant
DL385 G2) with 10k 2.5" 146GB SAS drives. The drives appear correctly, however
due to the controller not offering JBOD functionality I had to configure each
drive as a RAID0 logical drive.
Everything appears to work fine, the drives are detected and I created a mirror
for the OS to install to and an additional raidz2 array with the remaining 6
discs.
But when I remove a disc and then reinsert it I cannot get ZFS to accept it
back into the array see bellow for the details.
I thought it might be a problem with using the whole discs eg: c1t*d0 so I
created a single partition on each and used that, but had the same results. The
module seem to detect the drive has been reinserted successfully but the OS
doesn't seem to want to write to it.
Any help would be most appreciated as I would much prefer to use ZFS's software
capabilities rather than the hardware card in the machine.
When rebooting the system the Array BIOS also displays some interesting
behavior.
### BIOS Output
1792-Slot 1 Drive Array - Valid Data Found in the Array Accelerator
Data will automatically be written to the drive array
1779-Slot 1 Drive Array - Replacement drive(s) detected OR previously failed
drives(s) no appear to be operational
POrt 2I: Box1: Bay3
Logical drives(s) disabled due to possible data loss.
Select "F1" to continue with logical drive(s) disabled
Select "F2" to accept data loss and to re-enable logical drive(s)
#### Terminal output
bash-3.00# zpool status test
pool: test
state: DEGRADED
status: One or more devices could not be opened. Sufficient replicas exist for
the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
see: http://www.sun.com/msg/ZFS-8000-2Q
scrub: resilver completed after 0h0m with 0 errors on Tue Jan 27 03:30:16 2009
config:
NAME STATE READ WRITE CKSUM
test DEGRADED 0 0 0
raidz2 DEGRADED 0 0 0
c1t2d0p0 ONLINE 0 0 0
c1t3d0p0 ONLINE 0 0 0
c1t4d0p0 ONLINE 0 0 0
c1t5d0p0 UNAVAIL 0 0 0 cannot open
c1t6d0p0 ONLINE 0 0 0
c1t8d0p0 ONLINE 0 0 0
errors: No known data errors
bash-3.00# zpool online test c1t5d0p0
warning: device 'c1t5d0p0' onlined, but remains in faulted state
use 'zpool replace' to replace devices that are no longer present
bash-3.00# dmesg
Jan 27 03:27:40 unknown cpqary3: [ID 823470 kern.notice] NOTICE: Smart Array
P400 Controller
Jan 27 03:27:40 unknown cpqary3: [ID 823470 kern.notice] Hot-plug drive
inserted, Port: 2I Box: 1 Bay: 3
Jan 27 03:27:40 unknown cpqary3: [ID 479030 kern.notice] Configured Drive ?
....... YES
Jan 27 03:27:40 unknown cpqary3: [ID 100000 kern.notice]
Jan 27 03:27:40 unknown cpqary3: [ID 823470 kern.notice] NOTICE: Smart Array
P400 Controller
Jan 27 03:27:40 unknown cpqary3: [ID 834734 kern.notice] Media exchange
detected, logical drive 6
Jan 27 03:27:40 unknown cpqary3: [ID 100000 kern.notice]
...
Jan 27 03:36:24 unknown scsi: [ID 107833 kern.warning] WARNING:
/p...@38,0/pci1166,1...@10/pci103c,3...@0/s...@5,0 (sd6):
Jan 27 03:36:24 unknown SYNCHRONIZE CACHE command failed (5)
...
Jan 27 03:47:58 unknown scsi: [ID 107833 kern.warning] WARNING:
/p...@38,0/pci1166,1...@10/pci103c,3...@0/s...@5,0 (sd6):
Jan 27 03:47:58 unknown drive offline
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