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  3. December 2017

RE: Power7 / Power8 internal disk differences - future disk planning

Paul--

I don't know the specifics of the 2 types of disk. But I wonder...

Would the extra 4 (virtual) arms would be an advantage over the bigger drives?

Would putting all the disks in 1 RAID set and using RAID 6 work better?? Still 2 parity disks; 1 hot spare.

--Paul E Musselman



At 2:47 AM +0000 12/7/17, Steinmetz, Paul wrote:
Larry,

If you needed about 7tb, would you use
12 #ES8R - 775GB SFF-3 SSD 4k eMLC4 for IBM i
or
8 #ES8W - 1.55TB SFF-3 SSD 4k eMLC4 for IBM i

Raid 5 - 2 parity sets, 1 hot spare.

In each case, you lose 3 units, two to raid, 1 for hot spare..

Pros/cons if any.

Paul

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