RE: [cobalt-users] Qube 2 disk performance

[Smith Colin-WCCS07 <Colin.Smith@xxxxxxxxxxxx>]

> -----Original Message-----
> From: Pierre Chopot [mailto:pierre.chopot@xxxxxxxxxxx]
> Sent: 23 June 2000 09:23
> To: cobalt-users@xxxxxxxxxxxxxxx
> Subject: Re: [cobalt-users] Qube 2 disk performance
> 
> *********** BEGIN REPLY SEPARATOR  ***********
> On 21/06/2000 at 17:41 Smith Colin-WCCS07 wrote:
> 
> >Ran hdparm on the disk the other day.
> >
> >The default settings for the drive are fairly conservative, 
> no 32bit I/O, no
> >DMA etc, no multi block transfers. I was only getting 
> 1.7Mb/s out of the
> >drive. After enabling a couple of the features (most notably DMA) the
> >performance increased to 2.8Mb/s. Not fantastic, but 
> definitely better. Oh
> >yeah, CPU utilisation dropped a bit as well.
> >--
> >Colin Smith
> *********** END REPLY SEPARATOR  ***********
> 
> Sound interesting. Would you mind sharing some recipes with 
> us (less-knowledgeable-but-eager-to know-Qube-owner!)? I 
> guess that warranty is dead for good after doing this, but 
> anyway, mine is long gone so... :-). Also, I understand that 
> there must be a file somewhere that describes how the 
> Qube-Linux does access the hd but unless all Qube's are 
> geared with the exact same hd (I have the 4.3 gb, model sold 

I think they are all Quantum Fireball (5400rpm?)drives. That's what's in
mine (also 4.3Gb). if you telnet in to the Qube as root and run 'hdparm -tT
/dev/hda' it'll run a couple of basic benchmarks and tell you the
performance.

'man hdparm' will tell you about the hdparm command. hdparm can tell you
quite a lot about the drive and the ATA interface. It was hdparm which told
me the settings on the ATA interface and the drive.

I can't remember all the hdparm information off the top of my head. I'll
post more from home.

> in France, I'would have to open it to know the brand), how do 
> you know about the hd capabilities ?