From: Pol Hallen <raid1@fuckaround.org>
To: Linux-RAID <linux-raid@vger.kernel.org>
Subject: Performarce raid6 degraded
Date: Sat, 21 May 2011 13:16:18 +0200 [thread overview]
Message-ID: <201105211316.18565.raid1@fuckaround.org> (raw)
Hi folks, after fail of a disk on my raid6 sw I check with dd the performance
of raid:
dd if=/dev/zero of=degradedraid bs=1000024 count=100
100+0 records in
100+0 records out
100002400 bytes (100 MB) copied, 288.254 s, 347 kB/s
is it correct? only 347Kb/s on a raid6 degraded?
mdadm --detail /dev/md0
/dev/md0:
Version : 0.90
Creation Time : Mon Sep 27 14:19:15 2010
Raid Level : raid6
Array Size : 5860543744 (5589.05 GiB 6001.20 GB)
Used Dev Size : 1465135936 (1397.26 GiB 1500.30 GB)
Raid Devices : 6
Total Devices : 7
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Sat May 21 13:14:43 2011
State : active, degraded
Active Devices : 5
Working Devices : 5
Failed Devices : 2
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
UUID : 9bd6372e:e2eab1d5:d2bdc3cb:ad12f41d
Events : 0.385693
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
2 0 0 2 removed
3 8 81 3 active sync /dev/sdf1
4 8 65 4 active sync /dev/sde1
5 8 49 5 active sync /dev/sdd1
6 8 145 - faulty spare
7 8 33 - faulty spare
thanks!
Pol
next reply other threads:[~2011-05-21 11:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-21 11:16 Pol Hallen [this message]
2011-05-21 12:37 ` Performarce raid6 degraded NeilBrown
-- strict thread matches above, loose matches on Subject: below --
2011-05-22 12:57 Pol Hallen
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