Fala galera, como estão as coisas??

Pessoal, troquei o micro aqui e agora uso hd SATA2, mas percebi que ele está mais lento que o antigo ATA, os dois estão ligados no mesmo micro, e nos testes com o hdparm é possível ver a diferença...

em teorias o sata era pra ser muito, mais rápido que o ata100, mas não é isso que está ocorrendo.

Estou usando kubuntu 7.04 64bits...

Teste do hd sata2:
Código :
[email protected]:~# hdparm -Tt /dev/sda
 
/dev/sda:
 Timing cached reads:   1334 MB in  2.00 seconds = 667.01 MB/sec
 Timing buffered disk reads:  172 MB in  3.03 seconds =  56.80 MB/sec

teste do hd ata100
Código :
[email protected]:~# hdparm -Tt /dev/hda
 
/dev/hda:
 Timing cached reads:   1344 MB in  2.00 seconds = 672.29 MB/sec
 Timing buffered disk reads:  220 MB in  3.00 seconds =  73.28 MB/sec

os dados abaixo são referentes aos HDs, dados extraídos do dmesg:

Código :
[   20.840997] SCSI subsystem initialized
[   20.886893] ata1: SATA max UDMA/133 cmd 0x000000000001fc00 ctl 0x000000000001f802 bmdma 0x000000000001ec00 irq 21
[   20.895172] ata2: SATA max UDMA/133 cmd 0x000000000001f400 ctl 0x000000000001f002 bmdma 0x000000000001ec08 irq 21
[   20.903450] scsi0 : sata_via
[   21.113375] ata1: SATA link down 1.5 Gbps (SStatus 0 SControl 300)
[   21.140507] scsi1 : sata_via
[   21.349333] ata2: SATA link down 1.5 Gbps (SStatus 0 SControl 300)
[   22.413624] ata3: SATA max UDMA/133 cmd 0xffffc20000028100 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 28
[   22.422856] ata4: SATA max UDMA/133 cmd 0xffffc20000028180 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 28
[   22.431766] scsi2 : ahci
[   22.743364] ata3: SATA link down (SStatus 0 SControl 300)
[   22.752019] scsi3 : ahci
[   23.218181] ata4: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[   23.231487] ata4.00: ATA-7: SAMSUNG HD300LJ, ZT100-13, max UDMA7
[   23.239915] ata4.00: 586072368 sectors, multi 0: LBA48 NCQ (depth 31/32)
[   23.253135] ata4.00: configured for UDMA/133
[   23.261716] scsi 3:0:0:0: Direct-Access     ATA      SAMSUNG HD300LJ  ZT10 PQ: 0 ANSI: 5
[   23.270530] PM: Adding info for scsi:3:0:0:0
[   23.296484] ata5: PATA max UDMA/100 cmd 0x000000000001cc00 ctl 0x000000000001c802 bmdma 0x000000000001bc00 irq 29
[   23.305591] ata6: PATA max UDMA/100 cmd 0x000000000001c400 ctl 0x000000000001c002 bmdma 0x000000000001bc08 irq 29
[   23.314509] scsi4 : pata_jmicron
[   23.474230] scsi5 : pata_jmicron
[   23.662015] scsi 3:0:0:0: Attached scsi generic sg0 type 0
[   23.678479] SCSI device sda: 586072368 512-byte hdwr sectors (300069 MB)
[   23.696037] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   23.705168] SCSI device sda: 586072368 512-byte hdwr sectors (300069 MB)
[   23.722643] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   23.780225] sd 3:0:0:0: Attached scsi disk sda
[   32.803183]     ide0: BM-DMA at 0xe400-0xe407, BIOS settings: hda:DMA, hdb:pio
[   33.215350] hda: SAMSUNG SP2514N, ATA DISK drive
[   36.614223] hda_codec: Unknown model for ALC883, trying auto-probe from BIOS...
[   36.772132] hda: max request size: 512KiB
[   36.778600] hda: 488397168 sectors (250059 MB) w/8192KiB Cache, CHS=30401/255/63, UDMA(100)
[   36.785332] hda: cache flushes supported
[   36.792898]  hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 hda9 >
[  275.317316] hda-intel: Invalid position buffer, using LPIB read method instead.

existe alguma configuração que seja necessário fazer para que o HD tenha o desempenho esperado???

valeu