Re: Data-check brings system to a standstill
From: Jordan Russell <hidden>
Date: 2010-06-18 17:27:32
On 6/18/2010 12:10 PM, Tim Small wrote:
Have things switched to AHCI (or similar SATA controller) with NCQ since? If so, do you drives have buggy firmware which makes them suck with sequential reads when NCQ is enabled? See the libata wiki for details - you can try disabling NCQ (or limiting queue depth to 2, or whatever) to test it....
The disks are on an older Intel 6300ESB controller, which I'm fairly certain has no support for NCQ. ata4.00: ATA-7: WDC WD3200YS-01PGB0, 21.00M21, max UDMA/133 ata4.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 0/1) ata3.00: ATA-7: WDC WD3200YS-01PGB0, 21.00M21, max UDMA/133 ata3.00: 625142448 sectors, multi 16: LBA48 NCQ (depth 0/1) -- Jordan Russell