pmdw
January 2nd, 2009, 10:27 PM
Hi
I am try in to setup a raid level 1 on two hdd
I know that both disks work as I can format and fill them with files and compare etc.. and all is working
The thing is I had these drives working as a raid under Red Hat 7 but due to a network issue decided to upgrade to ubuntu.
When I try to set it up I get this.
How do I trouble shoot this?
peter@LinuxBox:~$ sudo mdadm --detail /dev/md0
[sudo] password for peter:
/dev/md0:
Version : 00.90.03
Creation Time : Fri Jan 2 20:15:34 2009
Raid Level : raid1
Array Size : 19550976 (18.65 GiB 20.02 GB)
Used Dev Size : 19550976 (18.65 GiB 20.02 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Fri Jan 2 20:16:26 2009
State : active, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
UUID : 42b249d1:8b2c5c20:2ae38843:adf23e8c (local to host LinuxBox)
Events : 0.13
Number Major Minor RaidDevice State
0 0 0 0 removed
1 8 33 1 active sync /dev/sdc1
2 8 17 - faulty spare /dev/sdb1
I get the above result after I have run this
sudo mdadm --create /dev/md0 --level=1 --verbose --raid-devices=2 /dev/sdb1 /dev/sdc1
When I call the --detail I get also get
Rebuild Status : 0% complete
and this goes up to 2 % and then errors out.
I am pretty sure of the hardware as it was all working ok before
and I have not made any changes except where the network cable is plugged in.
Questions :confused:
1. How do I trouble shoot this? ( what Log files am I looking for here)
2. Do I need to run mkfs on each partition before I do the create?
2a. or just on the md0 after I get things working?
3. Is there a better option under ubuntu to make a raid with?
Thanks
Peter
I am try in to setup a raid level 1 on two hdd
I know that both disks work as I can format and fill them with files and compare etc.. and all is working
The thing is I had these drives working as a raid under Red Hat 7 but due to a network issue decided to upgrade to ubuntu.
When I try to set it up I get this.
How do I trouble shoot this?
peter@LinuxBox:~$ sudo mdadm --detail /dev/md0
[sudo] password for peter:
/dev/md0:
Version : 00.90.03
Creation Time : Fri Jan 2 20:15:34 2009
Raid Level : raid1
Array Size : 19550976 (18.65 GiB 20.02 GB)
Used Dev Size : 19550976 (18.65 GiB 20.02 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Fri Jan 2 20:16:26 2009
State : active, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
UUID : 42b249d1:8b2c5c20:2ae38843:adf23e8c (local to host LinuxBox)
Events : 0.13
Number Major Minor RaidDevice State
0 0 0 0 removed
1 8 33 1 active sync /dev/sdc1
2 8 17 - faulty spare /dev/sdb1
I get the above result after I have run this
sudo mdadm --create /dev/md0 --level=1 --verbose --raid-devices=2 /dev/sdb1 /dev/sdc1
When I call the --detail I get also get
Rebuild Status : 0% complete
and this goes up to 2 % and then errors out.
I am pretty sure of the hardware as it was all working ok before
and I have not made any changes except where the network cable is plugged in.
Questions :confused:
1. How do I trouble shoot this? ( what Log files am I looking for here)
2. Do I need to run mkfs on each partition before I do the create?
2a. or just on the md0 after I get things working?
3. Is there a better option under ubuntu to make a raid with?
Thanks
Peter