RAID Configuration

[ctcline]

Hello,

I am setting up a new SW server. I will have 12 4TB drives. http://www.seagate.com/internal-hard-dr ... y-3-5-hdd/

I plan to use RAID 10, but is it better to have all these drives in one RAID volume or break them down into smaller volumes?

Thanks,
Chris

[anton (staff)]

Go OBR10 (One Big RAID10). Reason is simple: with one RAID set you basically do aggregate all IOPS from all the spindles into one virtual volume. So
any aligned I/O will touch all of the drives providing you the best match performance. With split drive sets you'll end with so-called "islands of storage" basically
stealing IOPS from each one and being difficult to manage.

Hello,

I am setting up a new SW server. I will have 12 4TB drives. http://www.seagate.com/internal-hard-dr ... y-3-5-hdd/

I plan to use RAID 10, but is it better to have all these drives in one RAID volume or break them down into smaller volumes?

Thanks,
Chris

[ctcline]

Thanks Anton!

[anton (staff)]

You're welcomed Please share the numbers you'd manage to sqeeze from your config. Thank you!