Re: what should i do to activate and get data back ????

On 03/20/2011 03:14 PM, ismail anwer wrote:
> i had a power cut then the raid status changes from ok to nosync even 
> after to days letting it sync.
>
> ################   dmraid -s
> *** Group superset isw_cdiebcjbjb
> --> Active Subset
> name   : isw_cdiebcjbjb_ismail
> size   : 3907039744
> stride : 256
> type   : raid5_la
> status : ok
> subsets: 0
> devs   : 3
> spares : 0
>
> ################   dmsetup table
> isw_cdiebcjbjb_ismail1: 0 3907033088 linear 252:0 2048
> isw_cdiebcjbjb_ismail: 0 3907039744 raid45 core 2 131072 nosync 
> raid5_la 1 256 3 -1 8:16 0 8:32 0 8:48 0
> ======================================================================
> ################   dmsetup table
> isw_cdiebcjbjb_ismail1: 0 3907033088 linear 252:1 2048
> isw_cdiebcjbjb_ismail: 0 3907039744 raid45 core 2 131072 sync raid5_la 
> 1 256 3 -1 8:16 0 8:32 0 8:48 0
>
> ################   dmraid -s
> *** Group superset isw_cdiebcjbjb
> --> Active Subset
> name   : isw_cdiebcjbjb_ismail
> size   : 3907039744
> stride : 256
> type   : raid5_la
> status : nosync
> subsets: 0
> devs   : 3
> spares : 0
>
>

i Have replaced the failed drive /dev/sdd with new one but i can't get 
the volume up again ????
Please help.
[root@linuxsrv ~ ] # dmraid -ay
ERROR: isw: wrong number of devices in RAID set "isw_cdiebcjbjb_ismail" 
[2/3] on /dev/sdb
ERROR: isw: wrong number of devices in RAID set "isw_cdiebcjbjb_ismail" 
[2/3] on /dev/sdc
RAID set "isw_cdiebcjbjb_ismail" was not activated

[root@linuxsrv ~ ] # sfdisk -s
/dev/sda: 976762584
/dev/sdb: 976762584
/dev/sdc: 976762584
/dev/sdd: 976762584

[root@linuxsrv ~ ] # dmraid -r
/dev/sdc: isw, "isw_cdiebcjbjb", GROUP, ok, 1953525166 sectors, data@ 0
/dev/sdb: isw, "isw_cdiebcjbjb", GROUP, ok, 1953525166 sectors, data@ 0
[root@linuxsrv ~ ] #

[root@linuxsrv ~ ] # dmraid -R isw_cdiebcjbjb /dev/sdd
ERROR: isw: wrong number of devices in RAID set "isw_cdiebcjbjb_ismail" 
[2/3] on /dev/sdb
ERROR: isw: wrong number of devices in RAID set "isw_cdiebcjbjb_ismail" 
[2/3] on /dev/sdc
ERROR: isw: only one failed disk supported
metadata fmt update failed

[root@linuxsrv ~ ] # dmraid -s
ERROR: isw: wrong number of devices in RAID set "isw_cdiebcjbjb_ismail" 
[2/3] on /dev/sdb
ERROR: isw: wrong number of devices in RAID set "isw_cdiebcjbjb_ismail" 
[2/3] on /dev/sdc
*** Group superset isw_cdiebcjbjb
--> *Inconsistent* Subset
name   : isw_cdiebcjbjb_ismail
size   : 1953519872
stride : 256
type   : raid5_la
status : inconsistent
subsets: 0
devs   : 2
spares : 0
[root@linuxsrv ~ ] #


Please see if you can help me revivi the volume from the old data bellow
################  OLD DATA MAY HELP ##############
################   dmesg |egrep "dm-raid45|sda|sdb|sdc|sdd|sde|dm-0|dm-1"
[    2.487733] sd 2:0:0:0: [sda] 1953525168 512-byte logical blocks: 
(1.00 TB/931 GiB)
[    2.487784] sd 2:0:0:0: [sda] Write Protect is off
[    2.487787] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    2.487821] sd 2:0:0:0: [sda] Write cache: enabled, read cache: 
enabled, doesn't support DPO or FUA
[    2.488001]  sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 sda9 sda10 >
[    2.573557] sd 2:0:0:0: [sda] Attached SCSI disk
[    3.457091] sd 3:0:0:0: [sdb] 1953525168 512-byte logical blocks: 
(1.00 TB/931 GiB)
[    3.457142] sd 3:0:0:0: [sdb] Write Protect is off
[    3.457145] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[    3.457170] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: 
enabled, doesn't support DPO or FUA
[    3.457316]  sdb: sdb1
[    3.473808] sdb: p1 size 3907033088 extends beyond EOD, enabling 
native capacity
[    3.474574]  sdb: sdb1
[    3.474760] sdb: p1 size 3907033088 extends beyond EOD, truncated
[    3.475369] sd 3:0:0:0: [sdb] Attached SCSI disk
[    4.436551] sd 4:0:0:0: [sdc] 1953525168 512-byte logical blocks: 
(1.00 TB/931 GiB)
[    4.436627] sd 4:0:0:0: [sdc] Write Protect is off
[    4.436630] sd 4:0:0:0: [sdc] Mode Sense: 00 3a 00 00
[    4.436655] sd 4:0:0:0: [sdc] Write cache: enabled, read cache: 
enabled, doesn't support DPO or FUA
[    4.436878]  sdc: unknown partition table
[    4.454030] sd 4:0:0:0: [sdc] Attached SCSI disk
[    5.416028] sd 5:0:0:0: [sdd] 1953525168 512-byte logical blocks: 
(1.00 TB/931 GiB)
[    5.416091] sd 5:0:0:0: [sdd] Write Protect is off
[    5.416094] sd 5:0:0:0: [sdd] Mode Sense: 00 3a 00 00
[    5.416117] sd 5:0:0:0: [sdd] Write cache: enabled, read cache: 
enabled, doesn't support DPO or FUA
[    5.416260]  sdd: sdd1
[    5.428718] sdd: p1 size 3907033088 extends beyond EOD, enabling 
native capacity
[    5.429475]  sdd: sdd1
[    5.429677] sdd: p1 size 3907033088 extends beyond EOD, truncated
[    5.430287] sd 5:0:0:0: [sdd] Attached SCSI disk
[    6.761841] device-mapper: dm-raid45: initialized v0.2594b
[    8.280303] EXT4-fs (sda5): mounted filesystem with ordered data 
mode. Opts: (null)
[    8.314802] device-mapper: dm-raid45: /dev/sdb is raid disk 0
[    8.314806] device-mapper: dm-raid45: /dev/sdc is raid disk 1
[    8.314809] device-mapper: dm-raid45: /dev/sdd is raid disk 2
[    8.314813] device-mapper: dm-raid45: 256/256/256 sectors 
chunk/io/recovery size, 80 stripes
[   15.900960] Adding 5119996k swap on /dev/sda7.  Priority:-1 extents:1 
across:5119996k
[   17.166011] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
[   17.362881] EXT4-fs (sda6): mounted filesystem with ordered data 
mode. Opts: (null)
[   21.939722] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro,commit=0
[   21.964110] EXT4-fs (sda6): re-mounted. Opts: commit=0
[   34.381673] EXT4-fs (sda8): mounted filesystem with ordered data 
mode. Opts: (null)
[  293.786013] EXT4-fs (sda10): mounted filesystem with ordered data 
mode. Opts: (null)
[  309.988043] EXT4-fs (sda10): mounted filesystem with ordered data 
mode. Opts: (null)
[  374.861620] EXT4-fs (sda8): mounted filesystem with ordered data 
mode. Opts: (null)
[  749.792748] EXT4-fs (sda8): mounted filesystem with ordered data 
mode. Opts: (null)
[ 1052.267283] EXT4-fs (sda8): mounted filesystem with ordered data 
mode. Opts: (null)
[ 1426.924993] EXT4-fs (sda8): mounted filesystem with ordered data 
mode. Opts: (null)
################   dmraid -V
dmraid version:        1.0.0.rc16 (2009.09.16) shared
dmraid library version:    1.0.0.rc16 (2009.09.16)
device-mapper version:    4.17.0
################   dmraid -s
*** Group superset isw_cdiebcjbjb
--> Active Subset
name   : isw_cdiebcjbjb_ismail
size   : 3907039744
stride : 256
type   : raid5_la
status : nosync
subsets: 0
devs   : 3
spares : 0
################   dmraid -r
/dev/sdd: isw, "isw_cdiebcjbjb", GROUP, ok, 1953525166 sectors, data@ 0
/dev/sdc: isw, "isw_cdiebcjbjb", GROUP, ok, 1953525166 sectors, data@ 0
/dev/sdb: isw, "isw_cdiebcjbjb", GROUP, ok, 1953525166 sectors, data@ 0
################   dmraid -l
asr     : Adaptec HostRAID ASR (0,1,10)
ddf1    : SNIA DDF1 (0,1,4,5,linear)
hpt37x  : Highpoint HPT37X (S,0,1,10,01)
hpt45x  : Highpoint HPT45X (S,0,1,10)
isw     : Intel Software RAID (0,1,5,01)
jmicron : JMicron ATARAID (S,0,1)
lsi     : LSI Logic MegaRAID (0,1,10)
nvidia  : NVidia RAID (S,0,1,10,5)
pdc     : Promise FastTrack (S,0,1,10)
sil     : Silicon Image(tm) Medley(tm) (0,1,10)
via     : VIA Software RAID (S,0,1,10)
dos     : DOS partitions on SW RAIDs
################   dmsetup info
Name:              isw_cdiebcjbjb_ismail1
State:             ACTIVE
Read Ahead:        256
Tables present:    LIVE
Open count:        2
Event number:      0
Major, minor:      252, 0
Number of targets: 1
UUID: DMRAID-isw_cdiebcjbjb_ismail1

Name:              isw_cdiebcjbjb_ismail
State:             ACTIVE
Read Ahead:        4096
Tables present:    LIVE
Open count:        1
Event number:      0
Major, minor:      252, 1
Number of targets: 1
UUID: DMRAID-isw_cdiebcjbjb_ismail

################   dmsetup table
isw_cdiebcjbjb_ismail1: 0 3907033088 linear 252:1 2048
isw_cdiebcjbjb_ismail: 0 3907039744 raid45 core 2 131072 sync raid5_la 1 
256 3 -1 8:16 0 8:32 0 8:48 0
################   dmsetup deps
isw_cdiebcjbjb_ismail1: 1 dependencies    : (252, 1)
isw_cdiebcjbjb_ismail: 3 dependencies    : (8, 48) (8, 32) (8, 16)
################   dmsetup targets
raid45           v1.0.0
mirror           v1.12.0
snapshot-merge   v1.0.0
snapshot-origin  v1.7.0
snapshot         v1.9.0
multipath        v1.1.1
striped          v1.3.0
linear           v1.1.0
error            v1.0.1
################   dmsetup status
isw_cdiebcjbjb_ismail1: 0 3907033088 linear
isw_cdiebcjbjb_ismail: 0 3907039744 raid45 3 8:16 8:32 8:48 1 AAA
################   dmsetup ls
isw_cdiebcjbjb_ismail1    (252, 0)
isw_cdiebcjbjb_ismail    (252, 1)






-- 
Regards,
Ismail Anwer
System Support Engineer
Mobile   :   +2 0165501631
Email    :   [email protected]