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Author HP EVA 3000 Occupancy Alarm Level
Jim McCullars

2007-03-21, 7:13 pm

Greetings:

We are running a HP EVA 3000 storage area network and in Command View EVA
there is a user setting under Occupancy called Alarm Level. We have it set
at 90%, but what is the purpose of this alarm? Is there a performance
consideration when the occupancy level exceeds a certain threshold, or is
this just a "its getting time to buy more disks" thing? Thanks...

Jim McCullars
University of Alabama in Huntsville

charles.morrall@benzler.se

2007-03-22, 7:14 am

On 21 Mar, 22:21, Jim McCullars <j...@info2.uah.edu> wrote:
> Greetings:
>
> We are running a HP EVA 3000 storage area network and in Command View EVA
> there is a user setting under Occupancy called Alarm Level. We have it set
> at 90%, but what is the purpose of this alarm? Is there a performance
> consideration when the occupancy level exceeds a certain threshold, or is
> this just a "its getting time to buy more disks" thing? Thanks...
>
> Jim McCullars
> university of Alabama in Huntsville


Both. For continued optimal performance, the EVA needs a bit of room
to be able to do reallocation and leveling as it redistributes blocks
around the spindles in a disk group.

Also, if you've grown above 90% occupancy, it would indeed be an
indication you're running out of space.

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