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basem

One big RAID 10

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Hi Guys,


So, I've sized a new SAN that will serves a vSphere Cluster.

MSA 2040, 12 x 3TB SAS 7.2 LFF, since I need 18 TB as a total in addition to good performance with a resilient data-store...

I will create a ob1o, so I'll get 18 TB...

I have eight VMs, each one will be 1.5 TB vmdk...


your opinion please...

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I don't think near line when I think of performance.

This, pretty much this.

You're going to want more spindles, and most likely some 10-15k or even SSD disks in a different datastore, and have your resource pools configured correctly.

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Brian, With that many spindles, won't his performance vary a LOT

depending on the RAID level he chooses -AND- the power

and on-board cache size of the RAID controller? Areca comes

to my mind + a model with 2GB of h/w cache + RAID-6.

Edited by MRFS

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Brian, With that many spindles, won't his performance vary a LOT

depending on the RAID level he chooses -AND- the power

and on-board cache size of the RAID controller? Areca comes

to my mind + a model with 2GB of h/w cache + RAID-6.

The HP MSA mentioned has upwards of 4GB of cache per controller ,and you can have up to two of them.

This day in age, it doesn't help as much IMO. Drive tiering with Flash disks is much more effective.

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