"Petr \"Qaxi\" Klíma"
2006-Aug-10 05:43 UTC
[CentOS] MD raid tools ... did i missed something?
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 Kl?ma
e-mail: qaxi at seznam.cz
On Thu, 10 Aug 2006, "Petr \"Qaxi\" Kl?ma" 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 Kl?ma > > e-mail: qaxi at seznam.cz > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >mdadm /dev/md2 -a /dev/hdd2 To 'hot-add' /dev/hdd2. Justin.
On 8/10/06, "Petr \"Qaxi\" Kl?ma" <qaxi at seznam.cz> wrote:> Hi > > I have a degraded array /dev/md2 > > $ mdadm -D /dev/md2[...]> 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 ;-)[...]> How can I repair the MD device?Hi Petr, use mdadm to rebuild the device. raidtools isn't included in CentOS 4.x anymore. raidhotadd /dev/mdX /dev/${partition} should be equivalent to mdadm -A /dev/mdX /dev/${partition} http://www.devil-linux.org/documentation/1.0.x/ch01s05.html Regards, Phil.
Aleksandar Milivojevic
2006-Aug-10 14:57 UTC
[CentOS] MD raid tools ... did i missed something?
Quoting "Petr \"Qaxi\" Kl?ma" <qaxi at seznam.cz>:> 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"They might want tool called raidhotadd, but you really want tool called "mdadm". Try "man mdadm" and you'll find plethora of options to do what you need. Something like "mdadm /dev/md2 -a /dev/new-partition". -- NOTICE: If you are not intended recipient, you are hereby notified that by reading this message you agreed not to disturb frogs during mating season. For more info, visit http://www.8-P.ca/