[CentOS] RAID Resynch...??

Ryan Wagoner rswagoner at gmail.com
Sun Nov 14 15:05:43 EST 2010


On Sun, Nov 14, 2010 at 12:46 PM, Tom Bishop <bishoptf at gmail.com> wrote:
> NEVERMIND....somehow my fstab mount is not right.....
>
> On Sun, Nov 14, 2010 at 11:41 AM, Tom Bishop <bishoptf at gmail.com> wrote:
>>
>> So still coming up to speed with mdadm and I notice this morning one of my
>> servers acting sluggish...so when I looked at the mdadm raid device I see
>> this:
>>
>>  mdadm --detail /dev/md0
>> /dev/md0:
>>         Version : 0.90
>>   Creation Time : Mon Sep 27 22:47:44 2010
>>      Raid Level : raid10
>>      Array Size : 976759808 (931.51 GiB 1000.20 GB)
>>   Used Dev Size : 976759808 (931.51 GiB 1000.20 GB)
>>    Raid Devices : 2
>>   Total Devices : 2
>> Preferred Minor : 0
>>     Persistence : Superblock is persistent
>>
>>     Update Time : Sun Nov 14 11:33:51 2010
>>           State : clean, resyncing
>>  Active Devices : 2
>> Working Devices : 2
>>  Failed Devices : 0
>>   Spare Devices : 0
>>
>>          Layout : far=2
>>      Chunk Size : 512K
>>
>>  Rebuild Status : 57% complete
>>
>>            UUID : f045370a:5be687e9:73e57992:06ea59e5
>>          Events : 0.8
>>
>>     Number   Major   Minor   RaidDevice State
>>        0       8       17        0      active sync   /dev/sdb1
>>        1       8       33        1      active sync   /dev/sdc1
>>
>>
>> If done some googling but I am stumped as to what would have kicked this
>> off, anyone have any insight that would be great...The system has been up
>> for ~34 days and it kicked off at 4am local time...Here are some of my
>> system details...
>>
>> Centos 5.5 - 2.6.18-194.11.4.el5
>>
>> fstab:
>> LABEL=/                 /                       ext3    defaults        1
>> 1
>> LABEL=/boot             /boot                   ext3    defaults        1
>> 2
>> /dev/md0                /home                   ext4
>> noatime,defaults         0 2
>> /dev/md0                /mnt/data-raid          ext4
>> noatime,defaults         0 2
>> tmpfs                   /dev/shm                tmpfs   defaults        0
>> 0
>> devpts                  /dev/pts                devpts  gid=5,mode=620  0
>> 0
>> sysfs                   /sys                    sysfs   defaults        0
>> 0
>> proc                    /proc                   proc    defaults        0
>> 0
>> LABEL=SWAP-sda2         swap                    swap    defaults        0
>> 0
>>
>> Thanks in advance....
>>

Have a look at /etc/cron.weekly/99-raid-check

Ryan


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