Re: Bad I/O performance Highpoint Rocket 1520 SATA controller (kernel2.6.11.12)

[Pedro Venda]

Roger Heflin wrote:

> > hde: SAMSUNG SP0802N, ATA DISK drive
> > hde: max request size: 1024KiB
> > hde: 156368016 sectors (80060 MB) w/2048KiB Cache, CHS=16383/255/63,
> > UDMA(100) DISK drive
> > hdg: [same as hde]

> > HPT372A: IDE controller at PCI slot 0000:01:02.0
> >     ide4: BM-DMA at 0x8400-0x8407, BIOS settings: hdi:DMA, hdj:pio
> >     ide5: BM-DMA at 0x8408-0x840f, BIOS settings: hdk:DMA, hdl:pio

> 1520/1640's are low end, Highpoint 1810, and 1820 are real raid
> and quite fast, but need their extra driver to work.  The newer
> 2220 are quite good also, they are probably also quite a bit
> more money.

hi roger, thanks for the reply,

besides being 100% true, it's irrelevant. I'm not using the card's raid 
features. As a standalone drive controller, it should be no different 
from a non-raid version (it's HPT302 instead of HPT372) and therefore 
should do the job normally i.e. with proper I/O speeds.

> I won't use a 1520/1640.   I think they are also fakeraid.

yes, they are. I'd be interested in finding out decent and well 
supported (linux opensource drivers, preferably in kernel tree) low-end 
(cheap) non-raid SATA controllers for 2/4 drives.

best regards,
pedro venda.
--
Pedro João Lopes Venda
pjvenda < at > arrakis dhis org
http://arrakis.dhis.org
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