Jake Conk wrote:
Well the reason why I didn't make it raid 0 because if one of the
disks were to go bad then my whole raid would go down right? Can you
give me the steps on how to make my md1 device a raid 0 without
reformatting my whole system? I don't think I can stop md1 unless I
stop all the md devices above it right? (md2/3/4/5)
Thanks,
- Jake
On 10/9/07, Richard Creighton <[EMAIL PROTECTED]> wrote:
Jake Conk wrote:
Hello,
I tried to setup a fresh install of 10.3 with 2 disks and I used YaST
to mirror all my partitions. I had originally my raid swap partitions
on an extended partition but that didn't work and I thought that was
the problem so instead now I put the raid partitions on primary
partitions, which still doesn't work.
Any suggestions would be appreciated because I'm completely stumped, I
can't figure out for the life of mine why my swap partition won't
work.
I think I would try making your swap partition RAID 0
I have MD0 /boot Raid1
MD1 swap Raid 0
MD2 / (root) Raid 1
MD3 /home Raid 5
and it works well with both 10.2 and 10.3. There is no advantage to
using raid1 with swap anyhow, you really don't need it to be backed up
or duplicated and it just slows the system down even if it did work.
FDISKS___________________________________________________________________
# fdisk -l /dev/sda
Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000a59ec
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 fd Linux raid autodetect
/dev/sda2 14 275 2104515 fd Linux raid autodetect
/dev/sda3 276 30401 241987095 f W95 Ext'd (LBA)
/dev/sda5 276 928 5245191 fd Linux raid autodetect
/dev/sda6 929 948 160618+ fd Linux raid autodetect
/dev/sda7 949 30401 236581191 fd Linux raid autodetect
# fdisk -l /dev/sdb
Disk /dev/sdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00026740
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 13 104391 fd Linux raid autodetect
/dev/sdb2 14 275 2104515 fd Linux raid autodetect
/dev/sdb3 276 30401 241987095 f W95 Ext'd (LBA)
/dev/sdb5 276 928 5245191 fd Linux raid autodetect
/dev/sdb6 929 948 160618+ fd Linux raid autodetect
/dev/sdb7 949 30401 236581191 fd Linux raid autodetect
MOUNT___________________________________________________________________
# mount
/dev/md2 on / type ext3 (rw,acl,user_xattr)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
debugfs on /sys/kernel/debug type debugfs (rw)
udev on /dev type tmpfs (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
/dev/md0 on /boot type ext3 (rw,acl,user_xattr)
/dev/md4 on /srv type ext3 (rw,acl,user_xattr)
/dev/md5 on /srv/db type ext3 (rw,acl,user_xattr)
/dev/md3 on /tmp type ext3 (rw,acl,user_xattr)
securityfs on /sys/kernel/security type securityfs (rw)
MDADM DETAILS___________________________________________________________
# mdadm --detail /dev/md1
/dev/md1:
Version : 01.00.03
Creation Time : Mon Oct 8 22:11:04 2007
Raid Level : raid1
Used Dev Size : 2104500 (2.01 GiB 2.16 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Mon Oct 8 22:14:55 2007
State : active, Not Started
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Name : 1
UUID : 397a7460:be70dee1:fc6c650c:7d900cf7
Events : 5
Number Major Minor RaidDevice State
0 8 2 0 active sync /dev/sda2
1 8 18 1 active sync /dev/sdb2
# cat /sys/block/md1/md/sync_action
recover
FSTAB_________________________________________________________________
# cat /etc/fstab
/dev/md2 / ext3 acl,user_xattr 1 1
/dev/md0 /boot ext3 acl,user_xattr 1 2
/dev/md4 /srv ext3 acl,user_xattr 1 2
/dev/md5 /srv/db ext3 acl,user_xattr 1 2
/dev/md3 /tmp ext3 acl,user_xattr 1 2
/dev/md1 swap swap defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs noauto 0 0
debugfs /sys/kernel/debug debugfs noauto 0 0
usbfs /proc/bus/usb usbfs noauto 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0
/dev/fd0 /media/floppy auto noauto,user,sync 0 0
FREE__________________________________________________________________
# free -m
total used free shared buffers cached
Mem: 6089 57 6031 0 3 25
-/+ buffers/cache: 29 6060
Swap: 0 0 0
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I still do not understand why people keep on insisting that swap should
not be on raid - try keeping a system running when the disk holding swap
goes South.
As for the problem, try putting a noresume line in your menu.lst for
grub - I have a feeling you have a resume= pointing to your raid1 set
that you are having issues with. I just got done fighting a similar
problem here, and changing resume= to noresume fixed it.
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deserve neither liberty nor safety. -- Benjamin Franklin
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