Re: howto know if raid is really working?
At Wednesday, 15 December 2004, Alvin Oga <aoga@ns.Linux-Consulting.
com> wrote:
>hi ya harland
>
>On Wed, 15 Dec 2004, Harland Christofferson wrote:
>
>> development:/etc# cat raidtab
>> raiddev /dev/md0
>> raid-level 1
>> nr-raid-disks 2
>> nr-spare-disks 0
>> chunk-size 4
>> persistent-superblock 1
>> device /dev/hda
>> raid-disk 0
>> device /dev/hdc
>> raid-disk 1
>
>you need to use /dev/hda1 and /dev/hdc1
>
>or whatever your corresponding partition is for your setup
>
>/dev/hda1 /
>/dev/hda2 /tmp
>/dev/hda3 /var
>/dev/hda5 /usr
>/dev/hda6 swap
>/dev/hda7 /home
>
>..... gets extremely tiresome for creating /dev/md devices
> for sw raid
>
>use google to find other raidtab examples for
>config with multiple partitions
>
>c ya
>alvin
>
okay ... it looks like using the whole disk was not the way to go
as it looks like the only time the disks are synced is when i
mdadm --stop /dev/md0; mdadm -C /dev/md0 -l1 -n2 /dev/hda /dev/hdc
some of the reading i have googled leads me to believe that i have
to start from scratch. the following commands aren't working out
for me:
mdadm -C /dev/md0 -l1 -n2 /dev/hda1 /dev/hdc1
mdadm -C /dev/md1 -l1 -n2 /dev/hda3 /dev/hdc3
mdadm -C /dev/md2 -l1 -n2 /dev/hda6 /dev/hdc6
mdadm -C /dev/md3 -l1 -n2 /dev/hda7 /dev/hdc7
mdadm -C /dev/md4 -l1 -n2 /dev/hda8 /dev/hdc8
mdadm -C /dev/md5 -l1 -n2 /dev/hda5 /dev/hdc5
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