| From: | "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> |
|---|---|
| To: | "Joseph S" <jks(at)selectacast(dot)net> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: harddisk configuration |
| Date: | 2008-10-31 21:15:10 |
| Message-ID: | dcc563d10810311415m1d10392rdd3a7dbf98b0ac83@mail.gmail.com |
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| Thread: | |
| Lists: | pgsql-general |
On Fri, Oct 31, 2008 at 1:21 PM, Joseph S <jks(at)selectacast(dot)net> wrote:
> Goboxe wrote:
>>
>> Hi,
>>
>> I just receive a new server with 5 x 73GB SAS harddisk.
>> I tried to maximize the total usable space when configure using RAID
>> 5.
>>
>> What I plan to do to configure all the 5 harddisks using RAID 5.
>> Windows operating system also will be installed the same RAID 5 ( I
>> going to have c: & d: drives)
>>
>> Is there any pro & cons when I using the above config?
>
> Raid 5 is slow. I thought the dedicated hardware I had would do the
> checksums so fast and that raid 5 would be faster than raid 10 (since io is
> spread over more disks) but it turned out not to be the case. I'd used raid
> 10 if I were you.
This++
Setup a 4 disk RAID10 with a hot spare.
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