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EVA4000 and leveling

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inex
Super Advisor

EVA4000 and leveling

HI,
We have an EVA with a diskgroup consisting of 1TB fata drives. We expanded the disk groups with more drives and the leveling took ages... Are there any articles describing how to calculate how long time leveling takes depending on type and number of disk drives etc?

-inex
4 REPLIES
Sivaramakrishna_1
Honored Contributor
Solution

Re: EVA4000 and leveling

Hi,

There is no specific guide for levelling time. Its fully depend on the utilization of the Disks on that DG and how much data to be levelled.

Yes with 1 TB(As it is FATA) will take lot of time.
Alzhy
Honored Contributor

Re: EVA4000 and leveling

No article but common sense.

The amount of time it takes to level as a result of remoing/adding disks in a diskgroup is directly proprtional to the number of disks in a diskgroup and of course the size of the disks.

1TB FATA drive removal/addition in a 240 disk DG will take days. On a 120 disk DG in an EVA8000 with 450GB FATA drives - it averages our array 4 days.

Hakuna Matata.
inex
Super Advisor

Re: EVA4000 and leveling

If we lets say expand with 5 drives, leveling takes about a week. And new space is not available before 1-2 days
Alzhy
Honored Contributor

Re: EVA4000 and leveling

That will be true. But space sometiems would be incresingly available as leveling progresses.
Hakuna Matata.