IBM Server MegaRAID Bios Utility RAID 10 setup with 8 drives
I am trying to setup my IBM server with RAID 10 and I have 8 hard drives. In researching, I see a lot of information about 4 drives. Creating two drive groups with two hard drives in each group. Then add the two groups into a span, and selecting RAID 10. How do I setup RAID 10 with 8 drives? Do I do 4 groups of 2 hard drives or 2 groups of 4 hard drives?
For RAID10, it should be a Stripe (RAID-0) of 4 x Mirrors (RAID-1)
ASKER
ok so you are saying I should group them like the following:
drive1
drive2
drive3
drive4
drive5
drive6
drive7
drive8
then add them to one span
drive1
drive2
drive3
drive4
drive5
drive6
drive7
drive8
then add them to one span
That looks fine as long as Drive-1 & Drive-2 are mirrored (RAID-1) [ I am just being careful about terminology ]
ASKER
I appreciate you being patient with me because I would like to get this correct.
ok so the groups need to be mirrored (RAID-1) and then when I put them all in one span, that will create the parity
ok so the groups need to be mirrored (RAID-1) and then when I put them all in one span, that will create the parity
No, the mirror gives you redundancy and the speed, the stripe across the mirrors gives you capacity. There isnt any Parity in RAID10
ASKER
ok great thank you. So whats the different between setting it up like I suggested above or setting up the groups like:
drive1
drive2
drive3
drive4
drive5
drive6
drive7
drive8
What setup is better?
drive1
drive2
drive3
drive4
drive5
drive6
drive7
drive8
What setup is better?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Thanks again for your help. I took your suggestion and it seems to be working great
you can have 2 spans of 4 drives each or 1 span of all 8 drives
however you carve it out is up to you depending on your needs