Hi,
Just for fun looked at /proc/mdstat and noticed...
[root@server1 /root]# cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 hda5[1] hda1[0] 15936 blocks [2/2] [UU]
md2 : active raid1 hdc5[1] hdc1[0] 262464 blocks [2/2] [UU]
md1 : active raid1 hdc6[1] hda6[0] 9751744 blocks [2/2] [UU]
unused devices:
notice.. md0 is two bits of hda, md2 two bits of hdc
well at least md1 is redundant!
does this mean if I get a failure my server? (4.1.2)
So looked at /etc/fstab
[root@server1 /root]# cat /etc/fstab
/dev/md1 / ext2 defaults 1 1
/dev/md0 /boot ext2 defaults 1 2
/dev/cdrom /mnt/cdrom iso9660 noauto,owner,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner 0 0
none /proc proc defaults 0 0
none /dev/pts devpts gid=5,mode=620 0 0
/dev/md2 swap swap defaults
I use Raid on my RH6 machine but 'upgraded' from a old non raid to raid and I know there a issues with booting is this why?
and for those who want to know here are the partitions on each drive
[root@server1 /root]# fdisk /dev/hdc
The number of cylinders for this disk is set to 39560.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/hdc: 16 heads, 63 sectors, 39560 cylinders
Units = cylinders of 1008 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hdc1 * 1 521 262552+ fd Linux raid autodetect
/dev/hdc2 522 39560 19675656 5 Extended
/dev/hdc5 522 1042 262552+ fd Linux raid autodetect
/dev/hdc6 1043 20391 9751864+ fd Linux raid autodetect
[root@server1 /root]# fdisk /dev/hda
The number of cylinders for this disk is set to 2434.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/hda: 255 heads, 63 sectors, 2434 cylinders
Units = cylinders of 16065 * 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 2 16033+ fd Linux raid autodetect
/dev/hda2 3 2434 19535040 5 Extended
/dev/hda5 3 4 16033+ fd Linux raid autodetect
/dev/hda6 5 1220 9767488+ fd Linux raid autodetect
Huw
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