From: | Arjen van der Meijden <acmmailing(at)tweakers(dot)net> |
---|---|
To: | david(at)lang(dot)hm |
Cc: | Christian Nicolaisen <blackbrrd(at)gmail(dot)com>, pgsql-performance(at)postgresql(dot)org |
Subject: | Re: 8x2.5" or 6x3.5" disks |
Date: | 2008-01-29 10:29:23 |
Message-ID: | 479F0003.6080003@tweakers.net |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-performance |
There are several suppliers who offer Seagate's 2.5" 15k rpm disks, I
know HP, Dell are amongst those. So I was actually refering to those,
rather than to the 10k one's.
Best regards,
Arjen
david(at)lang(dot)hm wrote:
> On Mon, 28 Jan 2008, Arjen van der Meijden wrote:
>
>> On 28-1-2008 20:25 Christian Nicolaisen wrote:
>>> So, my question is: should I go for the 2.5" disk setup or 3.5" disk
>>> setup, and does the raid setup in either case look correct?
>>
>> Afaik they are about equal in speed. With the smaller ones being a bit
>> faster in random access and the larger ones a bit faster for
>> sequential reads/writes.
>
> I missed the initial post in this thread, but I haven't seen any 15K rpm
> 2.5" drives, so if you compare 10K rpm 2.5" drives with 15K rpm 3.5"
> drives you will see differences (depending on your workload and
> controller cache)
>
> David Lang
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: In versions below 8.0, the planner will ignore your desire to
> choose an index scan if your joining column's datatypes do not
> match
>
From | Date | Subject | |
---|---|---|---|
Next Message | Mike Smith | 2008-01-29 11:43:15 | Re: 8x2.5" or 6x3.5" disks |
Previous Message | Matthew Lunnon | 2008-01-29 10:12:49 | Re: JDBC/Stored procedure performance issue |