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Re: raid recomendation



Le 15680ième jour après Epoch,
Roberto Scattini écrivait:

> hi, i have a new dell r720 server with 5 600gb disks.
> his function will be a postgresql server (the size of the databases is
> really small with 600gb we should be fine for a long time).
>
> which raid configuration would you recommend?
> i was thinking in raid 5 with all five disks but i am not a expert.
>
> i prefer redundandcy against size (i mean, i can sacrifice space). and i
> dont want performance degradation for doing raid with an incorrect number
> of disks.

In this case, avoid RAID5 and choose RAID1 or RAID10. Use 4 disks on the
RAID10 array and the 5th as a spare one, for example.


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