On Wed, Jan 27, 2010 at 11:14 AM, Vishal Rao <vishalrao@xxxxxxxxx> wrote: > 2010/1/27 Jarod Wilson <jarod@xxxxxxxxxxxx>: >> How to define a group gets... Messy. Just as a data point, my own >> Barefoot-based SSD, an OCZ Vertex, has no NCQ-related problems >> whatsoever, so far as I know. Its currently hooked to a Zotac ION >> board, which has ahci-driven sata controllers of some sort, was >> previously in a Dell Studio Hybrid, where it also worked just fine. > > Thanks for data point. I'm personally hoping for other Crucial users > specifically. > > Is NCQ enabled - if you grep dmesg for ata ? $ dmesg | grep -i ncq ahci 0000:00:0b.0: flags: 64bit ncq sntf led pmp pio slum part sxs ata1.00: 62533296 sectors, multi 16: LBA48 NCQ (depth 31/32), AA > The kernel already appears to blacklist (disable NCQ for) OCZ > SSD models with firmware version "02.10104". Here's what I've got: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata1.00: ATA-7: OCZ-VERTEX 1275, 00.P97, max UDMA/133 ata1.00: 62533296 sectors, multi 16: LBA48 NCQ (depth 31/32), AA ata1.00: configured for UDMA/133 scsi 0:0:0:0: Direct-Access ATA OCZ-VERTEX 1275 00.P PQ: 0 ANSI: 5 -- Jarod Wilson jarod@xxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
