With that kind of performance, you're going to be spoiled touching anything
else.  :)

It's getting to be that I can't deal with workstations with <4GB RAM   :)

-ASB: http://XeeSM.com/AndrewBaker


On Mon, Mar 1, 2010 at 10:07 AM, Ken Schaefer <[email protected]> wrote:

> You will get degradation with mechanical drives as well (because you need
> to wait for the platters to spin around to the few remaining empty spaces,
> not to mention writing a large file in lots of fragments).
>
>
>
> Whilst SSDs will degrade if the disk is very, very full (TRIM will ensure
> that you won’t have problems with drives that are only 70-80% full), the
> write performance of SSDs is so far beyond mechanical disks, it doesn’t
> matter.
>
>
>
> As mentioned, I installed Exchange 2010 (three times – all with hub, CAS
> and mailbox) the past weekend in 7 minutes, 7:35 minutes and 7:xx (I didn’t
> keep the last result) in a Hyper-V VM (on an SSD that was already running
> another VM hosting WSUS and SCOM 2007 R2). I highly doubt that would be
> possible on a SATA drive.
>
>
>
> Cheers
>
> Ken
>
>
>
> *From:* Steven M. Caesare [mailto:[email protected]]
> *Sent:* Monday, 1 March 2010 10:16 PM
>
> *To:* NT System Admin Issues
> *Subject:* RE: Which is faster ?
>
>
>
> SSD write performance can drop significantly as the disk gets full.
>
>
>
> TRIM support well help this some, but there is still a degradation…
>
>
>
> -sc
>
>
>
> *From:* Ken Schaefer [mailto:[email protected]]
> *Sent:* Monday, March 01, 2010 8:14 AM
> *To:* NT System Admin Issues
> *Subject:* RE: Which is faster ?
>
>
>
> Got some stats?
>
>
> IIRC any modern consumer SSD (based on Indilinx controller) will blow a
> mechanical drive out of the water. I installed Exchange 2010 (CAS, Hub
> Transport, Mailbox) in a VM in 7 minutes running on an SSD (G.Skill Falcon
> II – Indilinx controller). Not sure I’d be able to do that with any SATA
> based mechanical drive.
>
>
>
> Of course, if you buy some really old SSD, or something cheap, then
> performance will probably be rubbish as well..
>
>
>
> Cheers
>
> Ken
>
>
>
> *From:* Martin Blackstone [mailto:[email protected]]
> *Sent:* Monday, 1 March 2010 9:01 PM
> *To:* NT System Admin Issues
> *Subject:* RE: Which is faster ?
>
>
>
> For reads yes. For writes they can be slower.
>
>
>
> *From:* Ken Schaefer [mailto:[email protected]]
> *Sent:* Monday, March 01, 2010 4:38 AM
> *To:* NT System Admin Issues
> *Subject:* RE: Which is faster ?
>
>
>
> WD Raptors are expensive. If OP is investigating the use of 10K RPM SATA
> disks, then they should look at buying SSDs… For speed, SSDs blow any
> mechanical drive out of the water.
>
>
> Cheers
>
> Ken
>
>
>
>
>
> *From:* Andrew S. Baker [mailto:[email protected]]
> *Sent:* Monday, 1 March 2010 8:29 PM
> *To:* NT System Admin Issues
> *Subject:* Re: Which is faster ?
>
>
>
> Tested doing what?
>
> There are only some very specific workloads where the performance
> difference will be noticeable.
>
> Video streaming and editing is a very different workload from manipulating
> lots of small, randomly distributed files.
>
> I'd favor cost rather than theoretical performance here, barring other
> information.
>
>
> -ASB: http://xeesm.com/AndrewBaker
> Sent from my Verizon Smartphone
> ------------------------------
>
> *From: *"HELP_PC" <[email protected]>
>
> *Date: *Sun, 28 Feb 2010 07:25:47 +0100
>
> *To: *NT System Admin Issues<[email protected]>
>
> *Subject: *Which is faster ?
>
>
>
>
>
> How can I decide if a Hard disk WD 10000 rpm 16 mb cache will perform
> better than a WD 7200 rpm with 64mb cache
> Looking fore somebody that already tested
>
> TIA
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>

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