Re: Disk Config With CX6000

  • From: "LS Cheng" <exriscer@xxxxxxxxx>
  • To: stmontgo@xxxxxxxxx
  • Date: Sun, 17 Jun 2007 09:57:45 +0200


I came across EMC Metadevices terminology a few months ago, may be
Metadevice and Metaluns are the samething.

This is what I have been explained about a Metadevice, I may be wrong.

Basically each 72 disk is sliced into 9 8GB slices, then you create LUNs
using those 8GB slices. I am not sure what the advantage this provides but
may be it is useful if you dont want to reserve all disks for a single Lun,
flexilibity reasons? It's like creating 8GB Disks inside a Disk!



On 6/16/07, steve montgomerie <stmontgo@xxxxxxxxx> wrote:

Hello list!
We have a shiny new CX600 for Oracle 92080 Win 3k RAC cluster.
For the array I've been allocated 16 72GB drives for data and a few others
for redo and temp.

If I look at the data disks my initial inclination is to SAME and create
one big LUN
composed of 16 disks RAID 10. My storage guys are telling me to not create
on big LUN
but rather a few smaller RAID 10 sets and then do the METALUN thingie.

This is where I'm confused can someone shed some light on METALUNS and
whether I should
look at one big RAID 10 set or a couple of smaller ones concatenated with



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