Information about 3par 7200

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pazzoide76
Posts: 37
Joined: Tue Oct 22, 2013 10:18 am

Information about 3par 7200

Post by pazzoide76 »

Hi,
I would have a couple of questions concerning the operation of a 3PAR 7200 with 12x 300gb 15k disks .
This is my first installation of a storage 3PAR I have previously installed a variety of EVA and MSA .
I have created a CPG group in RAID5 selecting all 12 disks configured in 5:1 ratio with avaibility magazine .
From what I understand the 3PAR allocates , with SparingAlgorithm : Minimal
, The space equivalent to the biggest disc present in the cage to be used as hot spare space to perform a fast rebuild in case of rupture of a disc.
Inside the cpg I created a virtual volume of 2.2 TB using all the available space and presented to my hosts file.

So my question is as follows:

How many disks can be broken , not simultaneously , before lose all the data?
In case of failure of a disk on a 3PAR the rebuild of the CPG should start using the spare space .
Correct?
If the rebuild is successful , given that cpg is set in a raid 5 you can still break a disk before losing all your data ?

Correct?

Thanks
Architect
Posts: 138
Joined: Thu Dec 06, 2012 1:25 pm

Re: Information about 3par 7200

Post by Architect »

The simpel answer is: Yes, and you can keep doing that until you totally run out of space. it will even grab space from other tiers if it has to, to survive.
The goal is to achieve the best results by following the clients wishes. If they want to have a house build upside down standing on its chimney, it's up to you to figure out how do it, while still making it usable.
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