On Wed, Aug 15, 2012 at 10:58 PM, Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> wrote:
> On 8/15/2012 9:56 PM, vincent Ferrer wrote:
>
>> - My storage server has upto 8 cores running linux kernel 2.6.32.27.
>> - I created a raid5 device of 10 SSDs .
>
> No it is not normal practice. I 'preach' against it regularly when I
> see OPs doing it. It's quite insane.
>
> There are a couple of sane things you can do today to address your problem:
>
> Stan
>
Hi Stan,
Follow-up question for 2 types of setups i may have to prepare:
1) setup A has 80 SSDs. Question: Should I still create one
raid5 device or should I create 8 raid5 device each having 10 SSDs ?
My linux based storage server may be accessed by upto 10-20
physically different clients.
2) Setup B has only 12 SSDs. Question: Is it more practical to
have only one raid5 device, even though I may have 4-5 physically
different clients or create 2 raid5 devices each having 6 SSDs.
Reason I am asking because I have seen enterprise storage arrays from
EMC/IBM where new raid5 device is created on demand and (storage
firmware may spread across automatically across all the available
drives/spindles or can be intelligently selected by storage admin by
analyzing workload to avoid hot-spots)
Partitioning was only done because I am still waiting budget approval
to buy SSDs.
regards
vincy
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