Hello!
I am a little stuck with my multipath. kpartx is doing well now, my failover
works, but failback doesn't. Some strange things in the syslog - but
one-by-one:
- I have a host with two HBAs (HBA-A and B)
- these are connected to two Switches (HBA-A to SW-A and HBA-B to SW-B)
- each of Switches is connected to both Service Processors (SP-A and SP-B)
of my EMC CX600
- The CX600 is not multihomed, thus either SP-A or SP-B is servicing my LUN.
What I'd like to have is multibus via HBA-A -> SW-A -> SP-A and HBA-B ->
SW-B -> SP-A to the active SP and, in case both paths to the active SP fail,
a trespas of my LUN to SP-B, multibus to the other SP-B and vice versa.
I thought "group_by_serial" should do for that, but it doesn't
I get messages about failing and recovering paths in the syslog, but the
failover von SP-B to SP-A works, but then I get strange things in the log
and failing back doesn't work:
-> All paths ok, SP-A is holding the LUN:
SANfile_m ~ # multipath -l
hcfshare (360060160c820080063502869e459dc11) dm-0 DGC ,RAID 5
[size=3.4T][features=1 queue_if_no_path][hwhandler=1 emc]
\_ round-robin 0 [prio=0][active]
\_ 2:0:1:0 sde 8:64 [active][undef]
\_ 2:0:0:0 sdd 8:48 [active][undef]
\_ 1:0:1:0 sdc 8:32 [active][undef]
\_ 1:0:0:0 sdb 8:16 [active][undef]
SANfile_m ~ # dmsetup table
hcfshare1: 0 7263453117 linear 253:0 34
hcfshare: 0 7263453184 multipath 1 queue_if_no_path 1 emc 1 1 round-robin 0
4 1 8:64 1000 8:48 1000 8:32 1000 8:16 1000
syslog:
Oct 16 21:29:50 SANfile_m multipathd: sdd: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:29:50 SANfile_m multipathd: 8:48: reinstated
Oct 16 21:29:50 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:29:50 SANfile_m kernel: sd 2:0:0:0: [sdd] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:29:50 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:29:50 SANfile_m kernel: end_request: I/O error, dev sdd, sector
6609990458
Oct 16 21:29:50 SANfile_m kernel: device-mapper: multipath: Failing path
8:48.
Oct 16 21:29:50 SANfile_m multipathd: sdb: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:29:50 SANfile_m multipathd: 8:16: reinstated
Oct 16 21:29:50 SANfile_m multipathd: hcfshare: remaining active paths: 4
Oct 16 21:29:50 SANfile_m kernel: sd 1:0:0:0: [sdb] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:29:50 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:29:50 SANfile_m kernel: end_request: I/O error, dev sdb, sector
6609991482
Oct 16 21:29:50 SANfile_m kernel: device-mapper: multipath: Failing path
8:16.
Oct 16 21:29:50 SANfile_m multipathd: 8:48: mark as failed
Oct 16 21:29:50 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:29:50 SANfile_m multipathd: 8:16: mark as failed
Oct 16 21:29:50 SANfile_m multipathd: hcfshare: remaining active paths: 2
Oct 16 21:29:55 SANfile_m multipathd: sdd: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:29:55 SANfile_m multipathd: 8:48: reinstated
Oct 16 21:29:55 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:29:55 SANfile_m kernel: sd 2:0:0:0: [sdd] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:29:55 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:29:55 SANfile_m kernel: end_request: I/O error, dev sdd, sector
2072001426
Oct 16 21:29:55 SANfile_m kernel: device-mapper: multipath: Failing path
8:48.
Oct 16 21:29:55 SANfile_m multipathd: sdb: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:29:55 SANfile_m multipathd: 8:16: reinstated
Oct 16 21:29:55 SANfile_m multipathd: hcfshare: remaining active paths: 4
Oct 16 21:29:55 SANfile_m kernel: sd 1:0:0:0: [sdb] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:29:55 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:29:55 SANfile_m kernel: end_request: I/O error, dev sdb, sector
2072001938
Oct 16 21:29:55 SANfile_m kernel: device-mapper: multipath: Failing path
8:16.
Oct 16 21:29:55 SANfile_m multipathd: 8:48: mark as failed
Oct 16 21:29:55 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:29:55 SANfile_m multipathd: 8:16: mark as failed
Oct 16 21:29:55 SANfile_m multipathd: hcfshare: remaining active paths: 2
Oct 16 21:30:00 SANfile_m multipathd: sdd: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:30:00 SANfile_m multipathd: 8:48: reinstated
Oct 16 21:30:00 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:30:00 SANfile_m kernel: sd 2:0:0:0: [sdd] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:30:00 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:30:00 SANfile_m kernel: end_request: I/O error, dev sdd, sector
3208345898
Oct 16 21:30:00 SANfile_m kernel: device-mapper: multipath: Failing path
8:48.
Oct 16 21:30:00 SANfile_m multipathd: sdb: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:30:00 SANfile_m multipathd: 8:16: reinstated
Oct 16 21:30:00 SANfile_m multipathd: hcfshare: remaining active paths: 4
Oct 16 21:30:00 SANfile_m multipathd: 8:48: mark as failed
Oct 16 21:30:00 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:30:00 SANfile_m kernel: sd 1:0:0:0: [sdb] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:30:00 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:30:00 SANfile_m kernel: end_request: I/O error, dev sdb, sector
3208346410
Oct 16 21:30:00 SANfile_m kernel: device-mapper: multipath: Failing path
8:16.
Now both paths to SP-A fail, the failover to SP-B works:
syslog:
Oct 16 21:32:15 SANfile_m kernel: rport-2:0-1: blocked FC remote port time
out: removing target and saving binding
Oct 16 21:32:17 SANfile_m kernel: rport-1:0-1: blocked FC remote port time
out: removing target and saving binding
Oct 16 21:32:17 SANfile_m multipathd: 8:64: mark as failed
Oct 16 21:32:17 SANfile_m multipathd: hcfshare: remaining active paths: 3
Oct 16 21:32:17 SANfile_m multipathd: 8:48: mark as failed
Oct 16 21:32:17 SANfile_m multipathd: hcfshare: remaining active paths: 2
Oct 16 21:32:17 SANfile_m multipathd: 8:32: mark as failed
Oct 16 21:32:17 SANfile_m multipathd: hcfshare: remaining active paths: 1
Oct 16 21:32:17 SANfile_m multipathd: 8:16: mark as failed
Oct 16 21:32:17 SANfile_m multipathd: hcfshare: Entering recovery mode:
max_retries=60
Oct 16 21:32:17 SANfile_m multipathd: hcfshare: remaining active paths: 0
Oct 16 21:32:17 SANfile_m multipathd: hcfshare: Entering recovery mode:
max_retries=60
Oct 16 21:32:22 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:32:22 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:32:22 SANfile_m multipathd: sdd: emc_clariion_checker: Passive
path is healthy.
Oct 16 21:32:22 SANfile_m multipathd: 8:48: reinstated
Oct 16 21:32:22 SANfile_m multipathd: hcfshare: queue_if_no_path enabled
Oct 16 21:32:22 SANfile_m multipathd: hcfshare: Recovered to normal mode
Oct 16 21:32:22 SANfile_m kernel: device-mapper: multipath emc: emc_pg_init:
sending switch-over command
Oct 16 21:32:22 SANfile_m multipathd: hcfshare: remaining active paths: 1
Oct 16 21:32:22 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:32:22 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:32:22 SANfile_m multipathd: sdb: emc_clariion_checker: Active path
is healthy.
Oct 16 21:32:22 SANfile_m multipathd: 8:16: reinstated
Oct 16 21:32:22 SANfile_m multipathd: hcfshare: remaining active paths: 2
Oct 16 21:32:27 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:32:27 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:32:27 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:32:27 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:32:32 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:32:32 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:32:32 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:32:32 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:32:37 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:32:37 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:32:37 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:32:37 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:32:42 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:32:42 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:32:42 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:32:42 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
hcfshare (360060160c820080063502869e459dc11) dm-0 ,
[size=3.4T][features=1 queue_if_no_path][hwhandler=1 emc]
\_ round-robin 0 [prio=0][active]
\_ #:#:#:# - #:# [failed][undef]
\_ 2:0:0:0 sdd 8:48 [active][undef]
\_ #:#:#:# - #:# [failed][undef]
\_ 1:0:0:0 sdb 8:16 [active][undef]
SANfile_m ~ # dmsetup table
hcfshare1: 0 7263453117 linear 253:0 34
hcfshare: 0 7263453184 multipath 1 queue_if_no_path 1 emc 1 1 round-robin 0
4 1 8:64 1000 8:48 1000 8:32 1000 8:16 1000
Now the paths to SP-A are coming up again but multipath still shows them as
failed, and some disturbing messages in the
syslog:
SANfile_m ~ # multipath -l
hcfshare (360060160c820080063502869e459dc11) dm-0 ,
[size=3.4T][features=1 queue_if_no_path][hwhandler=1 emc]
\_ round-robin 0 [prio=0][active]
\_ #:#:#:# - #:# [failed][undef]
\_ 2:0:0:0 sdd 8:48 [active][undef]
\_ #:#:#:# - #:# [failed][undef]
\_ 1:0:0:0 sdb 8:16 [active][undef]
SANfile_m ~ # dmsetup table
hcfshare1: 0 7263453117 linear 253:0 34
hcfshare: 0 7263453184 multipath 1 queue_if_no_path 1 emc 1 1 round-robin 0
4 1 8:64 1000 8:48 1000 8:32 1000 8:16 1000
syslog:
Oct 16 21:35:27 SANfile_m kernel: scsi 1:0:1:0: Direct-Access DGC
RAID 5 0219 PQ: 0 ANSI: 4
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Very big device. Trying
to use READ CAPACITY(16).
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] 7263453184 512-byte
hardware sectors (3718888 MB)
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Test WP failed, assume
Write Enabled
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Asking for cache data
failed
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Assuming drive cache:
write through
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Very big device. Trying
to use READ CAPACITY(16).
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] 7263453184 512-byte
hardware sectors (3718888 MB)
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Test WP failed, assume
Write Enabled
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Asking for cache data
failed
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Assuming drive cache:
write through
Oct 16 21:35:27 SANfile_m kernel: sdg:<6>sd 1:0:1:0: [sdg] Device not
ready: <6>: Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: printk: 35 messages suppressed.
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 0
Oct 16 21:35:27 SANfile_m kernel: ldm_validate_partition_table(): Disk read
failed.
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 0
Oct 16 21:35:27 SANfile_m kernel: unable to read partition table
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Attached SCSI disk
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: Attached scsi generic sg4 type
0
Oct 16 21:35:27 SANfile_m kernel: scsi 1:0:1:0: Direct-Access DGC
RAID 5 0219 PQ: 0 ANSI: 4
Oct 16 21:35:27 SANfile_m kernel: kobject_add failed for 1:0:1:0
with -EEXIST, don't try to register things with the same name in the same
directory.
Oct 16 21:35:27 SANfile_m kernel: [number+85/816]
kobject_shadow_add+0x115/0x1b0
Oct 16 21:35:27 SANfile_m kernel: [<c02f95f5>]
kobject_shadow_add+0x115/0x1b0
Oct 16 21:35:27 SANfile_m kernel: [lo_ioctl+1125/2528]
device_add+0xc5/0x570
Oct 16 21:35:27 SANfile_m kernel: [<c03aefd5>] device_add+0xc5/0x570
Oct 16 21:35:27 SANfile_m kernel: [fc_remote_port_rolechg+127/320]
scsi_adjust_queue_depth+0x9f/0xf0
Oct 16 21:35:27 SANfile_m kernel: [<c03f9d7f>]
scsi_adjust_queue_depth+0x9f/0xf0
Oct 16 21:35:27 SANfile_m kernel: [blk_register_region+18/64]
__blk_queue_init_tags+0x32/0x70
Oct 16 21:35:27 SANfile_m kernel: [<c02eeb72>]
__blk_queue_init_tags+0x32/0x70
Oct 16 21:35:27 SANfile_m kernel: [sr_get_mcn+2/240]
scsi_sysfs_add_sdev+0x32/0x230
Oct 16 21:35:27 SANfile_m kernel: [<c0402882>]
scsi_sysfs_add_sdev+0x32/0x230
Oct 16 21:35:27 SANfile_m kernel: [<f99445b7>]
qla2xxx_slave_configure+0x77/0x110 [qla2xxx]
Oct 16 21:35:27 SANfile_m kernel: [sd_init_command+313/1088]
scsi_probe_and_add_lun+0x8c9/0x940
Oct 16 21:35:27 SANfile_m kernel: [<c0400859>]
scsi_probe_and_add_lun+0x8c9/0x940
Oct 16 21:35:27 SANfile_m kernel: [sr_probe+72/1472]
__scsi_scan_target+0x518/0x5c0
Oct 16 21:35:27 SANfile_m kernel: [<c04012c8>]
__scsi_scan_target+0x518/0x5c0
Oct 16 21:35:27 SANfile_m kernel: [kallsyms_addresses+36259/130252]
schedule+0x2df/0x940
Oct 16 21:35:27 SANfile_m kernel: [<c053695f>] schedule+0x2df/0x940
Oct 16 21:35:27 SANfile_m kernel: [sr_init_command+54/944]
scsi_scan_target+0xb6/0xe0
Oct 16 21:35:27 SANfile_m kernel: [<c04019f6>] scsi_scan_target+0xb6/0xe0
Oct 16 21:35:27 SANfile_m kernel: [SendIocInit+224/784]
fc_scsi_scan_rport+0x0/0x90
Oct 16 21:35:27 SANfile_m kernel: [<c04084b0>] fc_scsi_scan_rport+0x0/0x90
Oct 16 21:35:27 SANfile_m kernel: [SendIocInit+344/784]
fc_scsi_scan_rport+0x78/0x90
Oct 16 21:35:27 SANfile_m kernel: [<c0408528>] fc_scsi_scan_rport+0x78/0x90
Oct 16 21:35:27 SANfile_m kernel: [run_workqueue+131/256]
run_workqueue+0x73/0x100
Oct 16 21:35:27 SANfile_m kernel: [<c0131dc3>] run_workqueue+0x73/0x100
Oct 16 21:35:27 SANfile_m kernel: [autoremove_wake_function+16/80]
autoremove_wake_function+0x0/0x50
Oct 16 21:35:27 SANfile_m kernel: [<c01354e0>]
autoremove_wake_function+0x0/0x50
Oct 16 21:35:27 SANfile_m kernel: [worker_thread+172/256]
worker_thread+0x9c/0x100
Oct 16 21:35:27 SANfile_m kernel: [<c01326dc>] worker_thread+0x9c/0x100
Oct 16 21:35:27 SANfile_m kernel: [autoremove_wake_function+16/80]
autoremove_wake_function+0x0/0x50
Oct 16 21:35:27 SANfile_m kernel: [<c01354e0>]
autoremove_wake_function+0x0/0x50
Oct 16 21:35:27 SANfile_m kernel: [worker_thread+16/256]
worker_thread+0x0/0x100
Oct 16 21:35:27 SANfile_m kernel: [<c0132640>] worker_thread+0x0/0x100
Oct 16 21:35:27 SANfile_m kernel: [kthread+82/112] kthread+0x42/0x70
Oct 16 21:35:27 SANfile_m kernel: [<c0135212>] kthread+0x42/0x70
Oct 16 21:35:27 SANfile_m kernel: [kthread+16/112] kthread+0x0/0x70
Oct 16 21:35:27 SANfile_m kernel: [<c01351d0>] kthread+0x0/0x70
Oct 16 21:35:27 SANfile_m kernel: [print_trace_stack+3/16]
kernel_thread_helper+0x7/0x14
Oct 16 21:35:27 SANfile_m kernel: [<c0104763>]
kernel_thread_helper+0x7/0x14
Oct 16 21:35:27 SANfile_m kernel: =======================
Oct 16 21:35:27 SANfile_m kernel: error 1
Oct 16 21:35:27 SANfile_m kernel: scsi 1:0:1:0: Unexpected response from lun
0 while scanning, scan aborted
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453056
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 907931632
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453056
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 907931632
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453056
Oct 16 21:35:27 SANfile_m kernel: Buffer I/O error on device sdg, logical
block 907931632
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453120
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453168
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector
7263453176
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:27 SANfile_m kernel: sd 1:0:1:0: [sdg] Device not ready: <6>:
Sense Key : 0x2 [current]
Oct 16 21:35:27 SANfile_m kernel: : ASC=0x4 ASCQ=0x3
Oct 16 21:35:27 SANfile_m kernel: end_request: I/O error, dev sdg, sector 0
Oct 16 21:35:28 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:35:28 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:35:28 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:35:33 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:35:33 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:35:33 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:35:33 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:35:33 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:35:38 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:35:38 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:35:38 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:35:38 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
Oct 16 21:35:43 SANfile_m kernel: scsi 2:0:1:0: rejecting I/O to dead device
Oct 16 21:35:43 SANfile_m kernel: scsi 1:0:1:0: rejecting I/O to dead device
Oct 16 21:35:43 SANfile_m multipathd: sde: emc_clariion_checker: query
command indicates error
Oct 16 21:35:43 SANfile_m multipathd: sdc: emc_clariion_checker: query
command indicates error
multipath -l still shows:
hcfshare (360060160c820080063502869e459dc11) dm-0 ,
[size=3.4T][features=1 queue_if_no_path][hwhandler=1 emc]
\_ round-robin 0 [prio=0][active]
\_ #:#:#:# - #:# [failed][undef]
\_ 2:0:0:0 sdd 8:48 [active][undef]
\_ #:#:#:# - #:# [failed][undef]
\_ 1:0:0:0 sdb 8:16 [active][undef]
of course, failback won't work then.
My config:
defaults {
udev_dir /dev
polling_interval 5
selector "round-robin 0"
path_grouping_policy group_by_serial
failback immediate
getuid_callout "/sbin/scsi_id -g -u -s /block/%n"
}
multipaths {
multipath {
wwid 360060160c820080063502869e459dc11
alias hcfshare
path_grouping_policy group_by_serial
path_checker emc_clariion
path_selector "round-robin 0"
failback immediate
}
}
Does that tell somebody something?
Thanks,
(Gerald)
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