ProLiant Servers (ML,DL,SL)
cancel
Showing results for 
Search instead for 
Did you mean: 

Backgroup parity initialization

Qin_3
Occasional Visitor

Backgroup parity initialization

I have 3 arrays configured on a proliantML570, with RAID1+0 on arrayA (for OS) and RAID5 on arrayB and C(for data). After I extented arrayC, the background parity initialization started running. Now, while this is happening, I tried to upgrade the hard drives of arrayB(RAID5), but after swapping the drives, the controller(SA6402) lost all the array configuration including the ones I didn't change.
My question is: should it pick up the configuration for the arrays that had not been changed? Or am I only allowed to upgrade the HDD's after the parity initialization is completed on the other array?
How long will it take to do the parity initialization on a 546GB RAID5 array?
3 REPLIES
Christian Schwartz-Søre
Regular Advisor

Re: Backgroup parity initialization

Usually on the Smart Array only a limited number of executions can be carried out at a the same time.

The arrays have to normalize first before being able to perform further configuration changes.

regards
christian
Mike Naime
Honored Contributor

Re: Backgroup parity initialization

In an HSG controller, a 3x72GB raid (140GB usable) takes about 3-4 hours when a drive fails, or you are building a new raidset.
a 6x72 takes about 8-10 hours.

I think that Overnight would be a good estimate. :-)
VMS SAN mechanic
Qin_3
Occasional Visitor

Re: Backgroup parity initialization

It's been 2 days now, and it's still going.