Rules for adding disk enclosures to EVA8000

[Robert Cilia]

Is there a best practice in the number of disk enclosures that should be added to an EVA8000 when expanding the EVA? Our customer currently has an EVA8000 with 8 enclosures and wants to add more disk. The EVA has 4 loop switches as well. Should the customer buy the enclosures in pairs to distribute the new disks between loops 1 and 2 or could they just buy one shelf and load up a single loop?

Thanks...Robert.

[Rob Leadbeater · Accepted solution]

Hi Robert,

According to the QuickSpecs, in the Optional Hardware Accessories section:

"It is recommended that drive enclosures be added in pairs to a maximum of 12 per cabinet."

http://h18006.www1.hp.com/products/quickspecs/12236_div/12236_div.HTML

Hope this helps,

Regards,

Rob

[Peter Mattei]

It is supported upgrading by one Enclosure only, but HP recommendation is 2 at a time for symmetry.

Find attached the disk enclosure online installation guide.

Note: You can only install up to 2C12D online. If you go >12D you need a second rack. To hook up of the second rack you need to open the address bus which requires a short downtime.

Cheers
Peter

[Robert Cilia]

Thanks all that's what I was looking for.

Regards...Robert.

[Rob Leadbeater]

Cool. Remember to say thanks by assigning points...

http://forums1.itrc.hp.com/service/forums/helptips.do?#28

Cheers,

Rob

[tkc]

some white papers on storage array which you may find useful :

http://h18006.www1.hp.com/storage/arraywhitepapers.html


i am sure one of the best practices document will be of usage to you.