Re: RAID config for mailboxes host
Hi,
Sander wrote:
> Emmanuel Halbwachs wrote (ao):
>> We consider two RAID config for the 12 disks:
>> A 2 disks RAID 1 for system
>> 10 disks RAID 6 for mailbox space
>> B 12 disks RAID 6 for the whole
>> In A, we lose 1.2 (raw) TB with respect to B. Advocates of A say that
in B, the heads read/write activity of the mailboxes will seriously
impact the system performance. In A, the system has its own axes,
separate from the mailboxes ones.
>
> Btw, any reason you go with spinning disks and not with SSDs like Intel
710/720? SSDs are a good fit for maildir workload (random IO).
Option A loses 1.2 (raw) TB ..... what size are the disks? Using SSDs at
that size will likely not be possible. If it is possible, then it would
be extremely expensive.
I would prefer the multi RAID6 idea myself.
--
Kind Regards
AndrewM
Andrew McGlashan
Broadband Solutions now including VoIP
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