EVA 8100 Upgrade top XCS 6.2 still only 2TB LUN

[Phillip Thayer]

I upgraded an EVA8100 to XCS 6.2 and the Command View was upgraded to 8.0.2. When I go in to create a new VDisk with a size larger than 2TB, it still gives me the message saying that the size has to be between 1 and 2048.

Supposedly on XCS 6.2 this limit has been raised. Has anybody else seen this problem?

Thanks,
Phil

[IBaltay · Accepted solution]

Hi,
it was not raised yet...

neither
current EVA 4400 firmware releases
XCS 09003
http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01553017/c01553017.pdf

XCS 09004
http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01576466/c01576466.pdf

nor EVA 41xx/61xx/81xx
XCS 6200

provide larger then 2TB LUNs

[Phillip Thayer]

According to the release notes http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c01571300/c01571300.pdf
Page 5 under the heading Enhancements it says

"Increased virtual device mapping space (to 120 TB on EVA4x00/6x00 and to 300 TB on
EVA8x00) to enable better utilization of large capacity disk drives"

This to me says that I should be able to create a maximum 300TB VDisk on an EVA 8100 if I have upgraded to XCS V6.2.

Am I reading it wrong?

Phil

[IBaltay]

I think that 2 things are mixed here (see also this pls:
http://h18006.www1.hp.com/storage/disk_storage/eva_diskarrays/eva_arrays/index.html

Its inline with e.g. the 8100 quickspecs:
http://h18000.www1.hp.com/products/quickspecs/12745_div/12745_div.pdf

the max is either 240TB if you use the 1TB FATA drives
or 108TB if you use the 450GB FC disks

RESUME
the numbers are not the VDISK sizes but the max. sizes of the Disk group. The max VDISKs has remained the 2TBs

[Phillip Thayer]

So I WAS reading the release note incorrectly. Thanks for that clarification.

Does anybody have any idea WHEN the 2TB limit on VDisk size will be increased now that Windows is not limited to 2TB per disk? That seemed to be why it was limited before.

Phil

[Rob Leadbeater]

Hi Phil,

I suspect it will be a while yet.

The 2TB limit, is actually a result of limitations in the SCSI protocol itself.

Whilst changing the XCS code is probably relatively easy, the problem will be in upgrading and requalifying the firmware and drivers on all the HBAs out there that might want to attach to the EVA.

That's unlikely to be a small task.

Cheers,

Rob

[Phillip Thayer]

I think I got the answers to my questions. Thanks everyone.

[Phillip Thayer]

Point assigned.