Re: Disk Config With CX6000

Hi

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!

Thanks

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LSC



On 6/16/07, steve montgomerie <stmontgo_at_gmail.com> 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

> METALUNS?

>

> Thanks

>

> Steve

>


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