diff options
Diffstat (limited to 'share/man/man4/ada.4')
-rw-r--r-- | share/man/man4/ada.4 | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/share/man/man4/ada.4 b/share/man/man4/ada.4 index 8d2cf0e..65cd53f 100644 --- a/share/man/man4/ada.4 +++ b/share/man/man4/ada.4 @@ -36,12 +36,12 @@ .Sh DESCRIPTION The .Nm -driver provides support for direct access devices, implementing +driver provides support for direct access devices, implementing the .Tn ATA command protocol, that are attached to the system through a host adapter -supported by CAM subsystem. +supported by the CAM subsystem. .Pp -Host adapter must also be separately configured into the system before a +The host adapter must also be separately configured into the system before an .Tn ATA direct access device can be configured. .Sh COMMAND QUEUING @@ -52,12 +52,12 @@ seeks. defines two types of queueing: .Tn TCQ (Tagged Command Queueing, PATA legacy) and -.Tn NCQ (Native Command Queueing, SATA). +.Tn NCQ (Native Command Queueing, SATA) . The .Nm -device driver takes full advantage of the NCQ, when supported. -To ensure that transactions to distant portions of the media, -which may be deferred indefinitely by servicing requests nearer the current +device driver takes full advantage of NCQ, when supported. +To ensure that transactions to distant parts of the media, +which may be deferred indefinitely by servicing requests closer to the current head position, are completed in a timely fashion, an ordered transaction is sent every 7 seconds during continuous device operation. .Sh CACHE EFFECTS @@ -84,8 +84,8 @@ writes will be lost. The effect of a loss of write transactions on a file system is non-deterministic and can cause corruption. Most -devices age write transactions to limit vulnerability to a few transactions -recently reported as complete, but it is none-the-less recommended that +devices age write transactions to limit the vulnerability to a few transactions +recently reported as complete, but it is nonetheless recommended that systems with write cache enabled devices reside on an Uninterruptible Power Supply (UPS). The @@ -125,14 +125,14 @@ seconds. ATA device nodes .El .Sh SEE ALSO +.Xr ad 4 , .Xr ahci 4 , -.Xr siis 4 , -.Xr ad 4 -.Xr da 4 +.Xr da 4 , +.Xr siis 4 .Sh HISTORY The .Nm driver first appeared in .Fx 8.0 . .Sh AUTHORS -.An Alexander Motin Aq mav@FreeBSD.org . +.An Alexander Motin Aq mav@FreeBSD.org |