[CentOS] MD raid tools ... did i missed something?
Justin Piszcz
jpiszcz at lucidpixels.com
Thu Aug 10 08:07:42 UTC 2006
On Thu, 10 Aug 2006, "Petr \"Qaxi\" Klíma" wrote:
> Hi
>
> I have a degraded array /dev/md2
> =====================================================================
> $ mdadm -D /dev/md2
> /dev/md2:
> Version : 00.90.01
> Creation Time : Thu Oct 6 20:31:57 2005
> Raid Level : raid5
> Array Size : 221953536 (211.67 GiB 227.28 GB)
> Device Size : 110976768 (105.84 GiB 113.64 GB)
> Raid Devices : 3
> Total Devices : 2
> Preferred Minor : 2
> Persistence : Superblock is persistent
>
> Update Time : Thu Aug 10 07:32:45 2006
> State : dirty, degraded
> Active Devices : 2
> Working Devices : 2
> Failed Devices : 0
> Spare Devices : 0
>
> Layout : left-symmetric
> Chunk Size : 256K
>
> Number Major Minor RaidDevice State
> 0 0 0 -1 removed
> 1 8 21 1 active sync /dev/sdb5
> 2 8 37 2 active sync /dev/sdc5
> UUID : 4c77d8a9:3952f00b:876ce47a:a65d5522
> Events : 0.12152695
> =====================================================================
>
>
> I need to add the 3rd partition, so I open documentation
> http://www.centos.org/docs/4/html/rhel-isa-en-4/s1-storage-rhlspec.html#S2-STORAGE-RAID-DAY2DAY
> (I know the RTFM ;-)
>
> But in chapter 5.9.9.2.
> they want tool caled "raidhotadd"
>
> What was my wonder when it is not included in CentOS 4.3
> =====================================================================
> # yum provides raidhotadd
> Searching Packages:
> Setting up repositories
> update 100% |=========================| 951 B 00:00
> base 100% |=========================| 951 B 00:00
> local 100% |=========================| 951 B 00:00
> Reading repository metadata in from local files
> primary.xml.gz 100% |=========================| 71 kB 00:00
> update : ################################################## 195/195
> Added 0 new packages, deleted 2 old in 0.32 seconds
> Importing Additional filelist information for packages
> filelists.xml.gz 100% |=========================| 697 kB 00:00
> update : ################################################## 195/195
> Added 32 new packages, deleted 0 old in 2.51 seconds
> No Matches found
> =====================================================================
>
> How can I repair the MD device?
>
>
> --
>
> Petr Klíma
>
> e-mail: qaxi at seznam.cz
>
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>
mdadm /dev/md2 -a /dev/hdd2
To 'hot-add' /dev/hdd2.
Justin.
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