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MSA 2040 expansion Virtual Pool

Hi.

I've got a MSA 2040 with 24 disks, and Virtual Pools: A, B

In Virtual Pool A, I've got 8 disks in one Raid10 Diskgroup, and one virtual volume.

In Virtual Pool B, I've got two Virtual Diskgropus in Raid 5. (7 disks + 9 disks), and One Virtual Volume.

There is also two disks as global spares.

 

We need more space now, and a new large separate volume mapped to another server.

The data from volume in Pool A, has been moved to the volume in Pool B for the moment, so Volume A can be cleared..

I've also got a new diskshelf available now with 10 more disks.

My first thought was to set up these 10 disks in one Raid6 diskgroup, and add this to Pool A.

But I've read It is not best practice to mix different Raid diskgroups in the same Virtual Pool? 

Should I rather, delete the Raid 10 Diskgroup, and use these 8 disks in a new Raid6 diskgroup?Theat will give me thow Raid6 diskgroups in the same pool. 8 disks + 10 disk.

Would the Raid10 diskgroup together with the Raid6 diskgroup in Pool A increase the Write speed compared to two Raid6 diskgroups?

The MSA is used in a two node Hyper-V Cluster, with some virtual servers:

(RDS, SQL, Exchange, FILE, Print)

Tore J


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