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Checking Windows 8 Storage Spaces use-case

I

icanhazapple

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Mar 19, 2012
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I'm interested in using storage spaces but I'd like to check the validity of my usage case before purchasing additional hardware.

(In this usage case all the references drives are blank; the data is presently being stored on Amazon S3, temporarily)

I have three, 2TB hard drives. I'm looking to purchase two 4TB hard drives and an additional 2TB hard drive. I'd like to use the two new 4TB drives as my primary storage space, and the four 2TB drives as my 'backup' to the 2x4TB pool that I'll be using. Is this possible? How should I provision my storage space?
 
I use SS all the time and have it on a Win8 platform holding my 45TB media server without a single issue (been running for over 18 months fine).

I don't advise the mixing of drive sizes in same pool, keep same size drives in each pool. So your idea of 2x 4TB's in mirror and the 4x 2TB's in parity or double mirror is fine. If the 4x 2TB's are for pure backups, then just spanning will be fine.

Don't forget to run the "Power Protected" switch in powershell.

Set-StoragePool -FriendlyName <Storage Pool Name> -IsPowerProtected $True
Click to expand...

<Storage Pool Name> = the Pools exact name, remove the < >

Also, keep in mind the following:
  • Dynamic mirror (this is NOT storage spaces) will see single drive write speeds and up to twice the reads speeds.
  • SS mirror will see single drive read/writes (some variances with caching).
  • SS Parity reads are up to total read of all drives combined -1. Writes though (after PP switch) will be varied on system and drives used. I myself have 8-disk parity pools (8x ST2000DM001 and 8x ST3000DM001) and see about 90MB'sec writes. This is on large files though (several GB), with smaller files like say less than a few hundred MB, writes are almost instant for randoms, this is just caching in use.
A few have tried using SSD cache setups but this a very dark-grey area and I haven't seen in anything to justify the waste of SSD's.
 
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