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 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
