Re: Performance problems with Seagate Barracuda ES.2 harddisks

[Matthias Scheler <tron%zhadum.org.uk@localhost>]

On Mon, Jul 07, 2008 at 07:50:36PM +0100, Matthias Scheler wrote:
> I got a HP Proliant ML110 G4 running a NetBSD/amd64 4.99.69 GENERIC kernel.
> I've recently added two Seagate Barracuda ES.2 SATA harddisk. They work
> fine but the filesystem performance is very poor.

I've switched the hostadapter to AHCI mode in the meantime:

ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x27c1
ahcisata0: interrupting at ioapic0 pin 19
ahcisata0: AHCI revision 1.1, 4 ports, 32 command slots, features 0xc720e000
atabus2 at ahcisata0 channel 0
atabus3 at ahcisata0 channel 1
atabus4 at ahcisata0 channel 2
atabus5 at ahcisata0 channel 3
ahcisata0 port 0: device present, speed: 1.5Gb/s
ahcisata0 port 1: device present, speed: 1.5Gb/s
ahcisata0 port 2: device present, speed: 1.5Gb/s
wd0 at atabus2 drive 0: <FB160C4081>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 149 GB, 310101 cyl, 16 head, 63 sec, 512 bytes/sect x 312581808 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) 
(using DMA)
wd1 at atabus3 drive 0: <ST3500320NS>
wd1: quirks 2<FORCE_LBA48>
wd1: drive supports 16-sector PIO transfers, LBA48 addressing
wd1: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd1(ahcisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) 
(using DMA)
wd2 at atabus4 drive 0: <ST3500320NS>
wd2: quirks 2<FORCE_LBA48>
wd2: drive supports 16-sector PIO transfers, LBA48 addressing
wd2: 465 GB, 969021 cyl, 16 head, 63 sec, 512 bytes/sect x 976773168 sectors
wd2: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd2(ahcisata0:2:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133) 
(using DMA)
ahcisata0 port 3: PHY offline

That does however not improve the performance.

        Kind regards

-- 
Matthias Scheler                                  http://zhadum.org.uk/