disk problems or false alarm??

[Alexander Dalloz]

Am Sa, den 01.05.2004 schrieb Guolin Cheng um 01:31:

>  Then that means for normal ia-32 machines, the PCI&IDE Bus speed is
> mostly 33MHz/s, and so the sustainable IDE disk access speed is always
> no more than about 33MB/s?  I tried several types of Linux boxes, the
> long-time disk access is about no more than 35MB/s. 

Which current IDE hard disk do you expect to have more then 35MB/sec to
50MB/sec sustainable speed? Do not mix maximum possible bus speed with
what you can expect from a drive in real. An remind that manufacturers
overstate with specs given for their products.

>  And there are no other means to accelerate disk access speed? Manuauly
> setting IDE disk's access mode (UDMA2/3/4/5/6) with hdparm has no big
> difference, as far as from my own experience.

Normally that really makes no real difference. Only for cases where the
disc can deliver data from their cache.

>  Any other ideas, besides buy ia-64 hosts? Thanks.

Why should IA64 change anything? The disk itself is the limiting factor.

>  Guolin Cheng

Alexander


-- 
Alexander Dalloz | Enger, Germany | GPG key 1024D/ED695653 1999-07-13
Fedora GNU/Linux Core 1 (Yarrow) on Athlon CPU kernel 2.4.22-1.2188.nptl
Sirendipity 01:40:16 up 4 days, 29 users, load average: 0.50, 0.28, 
                   [ Γνωθι σ'αυτον - gnothi seauton ]
             my life is a planetarium - and you are the stars
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: Dies ist ein digital signierter Nachrichtenteil
URL: <http://listman.redhat.com/archives/fedora-list/attachments/20040501/e43468b1/attachment-0001.sig>