Messages in this thread | | | Date | Thu, 28 Jan 2010 15:12:07 -0500 | Subject | Re: [PATCH] ata: Disable NCQ for Crucial M225 brand SSDs | From | Jarod Wilson <> |
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On Wed, Jan 27, 2010 at 11:14 AM, Vishal Rao <vishalrao@gmail.com> wrote: > 2010/1/27 Jarod Wilson <jarod@wilsonet.com>: >> 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@wilsonet.com
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