HPE EVA Storage

Insufficient Available Data Storage for CA Replication ?

 
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Patrice Bourdon
Frequent Advisor

Insufficient Available Data Storage for CA Replication ?

Hi, i have 2 EVA 4400 with Continuous Access replication.
I have enough space in CA licensing on each EVA.
I have about 400 MB free on EVA 1, and about 300 MB free on EVA 2.
My proble is when i attempt to create a DR Group with a 175 MB vdisk, i got an error message "Insufficient Available Data Storage" !!!

Any idea ?
4 REPLIES 4
Uwe Zessin
Honored Contributor
Solution

Re: Insufficient Available Data Storage for CA Replication ?

I guess you are running with at least XCS 9.00.40.00? There was a change to allocate by default 100 GIGABYTES to the Write-History-Log of a DR_Group. The WHL is internally created as a VRAID-1 virtual disk, so it requires 200 GB!

Oh, and 300/400 MegaBytes is not enough free space anyway. According to the best practices guide, there should be AT LEAST 5 VRAID-0/'raw' GB free to allow some basic maintenance work.
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Patrice Bourdon
Frequent Advisor

Re: Insufficient Available Data Storage for CA Replication ?

oops :(((

read "GB" where i wrote "MB" !!!!

Pat
Uwe Zessin
Honored Contributor

Re: Insufficient Available Data Storage for CA Replication ?

And the VRAID-level for the 175 GB vdisk should be? Last time I checked, the WHL is allocated on both, the source and the destination EVA:

VRAID-0: 200GB+175GB = 375GB (not enough space on EVA2)
VRAID-1: 200GB+350GB = 550GB (not enough space on EVA1+2)
VRAID-5: 200GB+219GB = 419GB (not enough space on EVA1+2)
VRAID-5: 200GB+263GB = 463GB (not enough space on EVA1+2)
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Patrice Bourdon
Frequent Advisor

Re: Insufficient Available Data Storage for CA Replication ?

ok, i'm waiting for disk extension, thanks for answer Uwe.

Pat