Re: [PATCH v8 0/5] Initial support for multi-actuator HDDs

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On Thu, Sep 09, 2021 at 11:35:40AM +0900, Damien Le Moal wrote:
> Single LUN multi-actuator hard-disks are cappable to seek and execute
> multiple commands in parallel. This capability is exposed to the host
> using the Concurrent Positioning Ranges VPD page (SCSI) and Log (ATA).
> Each positioning range describes the contiguous set of LBAs that an
> actuator serves.
> 
> This series adds support to the scsi disk driver to retreive this
> information and advertize it to user space through sysfs. libata is
> also modified to handle ATA drives.

This looks good, and easy for user space to make optimizations.

Reviewed-by: Keith Busch <kbusch@xxxxxxxxxx>



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