smartpqi.4: Add explanation of ioaccel

Based on text sent by Don Brace.

Reported-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2017-11-15 12:57:17 +01:00
parent 8c5ea8ce8b
commit a39a3f8d9b
1 changed files with 5 additions and 2 deletions

View File

@ -197,9 +197,12 @@ $ \c
The
.I ssd_smart_path_enabled
attribute is read-only.
.\" FIXME
.\" What is "ioaccel"? This string appears nowhere in man-pages HEAD.
This attribute is for ioaccel-enabled volumes.
(Ioaccel is an alternative driver submission path that allows the
driver to send I/O requests directly to backend SCSI devices,
bypassing the controller firmware.
This results in an increase in performance.
This method is used for HBA disks and for logical volumes comprised of SSDs.)
Contains 1 if ioaccel is enabled for the volume and 0 otherwise.
.IP
For example: