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Old 12-24-2005, 12:37 PM   #1
kumarsundaram
LQ Newbie
 
Registered: Jun 2005
Posts: 23

Rep: Reputation: 15
RAID1 setup


Hello All,
I have a software RAID 1 setup on my new FC4 box. It all seems to be working except the following 'doubt' that I have...

I did a 'cat /proc/mdstat' on my system and the output looks like the following:
Personalities: [raid1]
md1: active raid1 hdb2[1] hda2[0]
78260544 blocks [2/2] [UU]

md0: active raid1 hdb1[1] hda1[0]
104320 blocks [2/2] [UU]

unused devices: <none>


Now, my question is the following:

Looking at the output makes me to think that the system is currently using hdb2[1] as its primary... What I really would like to see is to hda2[0] be listed before hdb2[1]
The reason is my hard disks are not exactly identical. The master drive in the controller is a 7200RPM with 8MB cache which is the hda and the secondary one runs @ 7200RPM and has 2MB cache which is the hdb in this case.
So, something tells me that using hda with 8MB cache as the primary one within the raid setup would make more sense than the current setup I have shown above.

All I want to know at this point is how to reverse the above order so that I see hda2[0] listed first under the md1 active raid1.

Thank you in advance for your help. Merry Christmas!
 
Old 12-25-2005, 04:52 AM   #2
Keruskerfuerst
Senior Member
 
Registered: Oct 2005
Location: Horgau, Germany
Distribution: Manjaro KDE, Win 10
Posts: 2,199

Rep: Reputation: 164Reputation: 164
You should always use two identical drives. All data are written on both drives. So it would make no sense to change the "priority" of the two drives.
 
  


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