Re: Linux does not care for data integrity (was: Disk write cache)

[Alan Cox]

On Llu, 2005-05-16 at 16:40, Matthias Andree wrote:
> On Mon, 16 May 2005, Alan Cox wrote:
> Is tagged command queueing (we'll need the ordered tag here) compatible
> with all SCSI adaptors that Linux supports?

TCQ is a device not controller property.

> What if tagged command queueing is switched off for some reason
> (adaptor or HW incapability, user override) and the drive still has
> write cache enable = true and queue algorithm modifier = 1 (which

We turn the write back cache off if TCQ isn't available.

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