Storage Spaces questions

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freitasm

BDFL - Memuneh
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Geekzone

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#139087 27-Jan-2014 18:48

Folks, anyone using Storage Spaces that could answer a couple of questions please?

Can I have a three disk mirror (as in three 4TB drives so mirrored files are balanced between them, like the old driver extender in WHS used to do?) This means a mirror could be larger than 4TB in size
If the OS crashes and need to be reinstalled can I just have the drives plugged and will the new install recognise a storage pool/drive?
In terms of performance is it similar, better or worse than just having the old software mirror?

toyonut

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#975310 27-Jan-2014 19:02

1. You could do a 3 disk raid 5 style array which will give you space striped across three disks and some redundancy.
2. That is the case in my experience. I had a test array set up in a server formatted with REFS. After we had finished with it, I plugged one of the disks into my windows 8 desktop to format it and it brought up a message box asking for me to plug the rest of the drives in so it could build the array again.
3. I would suggest it is about as fast as a similarly configured software raid. Copying to the server disk array over a gig network was almost as fast as copying to a local SATA drive on my old desktop.

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freitasm

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#975311 27-Jan-2014 19:04

Thanks. Another questions then: can I create a virtual disk with one drive, then add more drives to the pool and change from single drive to RAID 1 (mirror) for example? Or do I have to create as RAID 1 from the start?

toyonut

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#975977 28-Jan-2014 15:12

Not sure sorry. I don't even have a test rig to try it on anymore.

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SepticSceptic

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#989651 18-Feb-2014 14:33

After listening to a recent BYOD podcast, you cannot resize the pool by adding extra drives. Once set, it's set.