| sauce |
05-23-2007 10:45 PM |
RAID-1 failing, is my brand new disk BAD??
I setup a nice RAID-1 this afternoon. I get home thinking all my arrays will be synced perfectly. Howoever one partition is failing rebuild (/home), over and over again. Is my hdd bad already?
This is a brand new box, brand new install, with 2 brand new Samsung HD501LJ (rated highest on newegg!)
I happen to have 1 more disk that I was gonna put in a USB enclosure. Depending on what people say here, I may pop it in just to see if sdb is really going bad.
This is a Dell PowerEdge box with an onboard ICH7 controller.
Code:
Linux fbserver 2.6.21.1 #6 SMP Wed May 23 12:41:49 EDT 2007 i686 pentium4 i386 GNU/Linux
Code:
# cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sda6[2] sdb6[1]
30001280 blocks [2/1] [_U]
[==>..................] recovery = 11.0% (3300352/30001280) finish=5.7min speed=76758K/sec
md2 : active raid1 sda7[0] sdb7[1]
995904 blocks [2/2] [UU]
md3 : active raid1 sda8[0] sdb8[1]
445289536 blocks [2/2] [UU]
md0 : active raid1 sda5[0] sdb5[1]
10000320 blocks [2/2] [UU]
unused devices: <none>
Code:
# mdadm --detail /dev/md1
/dev/md1:
Version : 00.90.03
Creation Time : Wed May 23 13:46:36 2007
Raid Level : raid1
Array Size : 30001280 (28.61 GiB 30.72 GB)
Device Size : 30001280 (28.61 GiB 30.72 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Persistence : Superblock is persistent
Update Time : Wed May 23 19:46:17 2007
State : clean, degraded, recovering
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1
Rebuild Status : 15% complete
UUID : bf8daea5:ac626144:b62173d3:4a299e9f
Events : 0.494
Number Major Minor RaidDevice State
2 8 6 0 spare rebuilding /dev/sda6
1 8 22 1 active sync /dev/sdb6
This is dmesg. The following info is repeated dozens of times.
Code:
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
ata1.01: (BMDMA stat 0x25)
ata1.01: cmd c8/00:08:31:11:25/00:00:00:00:00/f2 tag 0 cdb 0x0 data 4096 in
res 51/40:08:31:11:25/40:02:02:00:00/f2 Emask 0x9 (media error)
ata1.00: configured for UDMA/133
ata1.01: configured for UDMA/133
sd 0:0:1:0: SCSI error: return code = 0x08000002
sdb: Current [descriptor]: sense key=0x3
ASC=0x11 ASCQ=0x4
Descriptor sense data with sense descriptors (in hex):
72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
02 25 11 31
end_request: I/O error, dev sdb, sector 35983665
ata1: EH complete
raid1: sdb: unrecoverable I/O read error for block 11789696
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
SCSI device sdb: 976773168 512-byte hdwr sectors (500108 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
md: md1: recovery done.
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:1, o:1, dev:sda6
disk 1, wo:0, o:1, dev:sdb6
RAID1 conf printout:
--- wd:1 rd:2
disk 1, wo:0, o:1, dev:sdb6
RAID1 conf printout:
--- wd:1 rd:2
disk 0, wo:1, o:1, dev:sda6
disk 1, wo:0, o:1, dev:sdb6
md: recovery of RAID array md1
md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for recovery.
md: using 128k window, over a total of 30001280 blocks.
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