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Diffstat (limited to 'share/man/man4/ccd.4')
| -rw-r--r-- | share/man/man4/ccd.4 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/share/man/man4/ccd.4 b/share/man/man4/ccd.4 index 27ffa2f..d93871c 100644 --- a/share/man/man4/ccd.4 +++ b/share/man/man4/ccd.4 @@ -100,7 +100,8 @@ effect is achieved, which can increase sequential read/write performance. The interleave factor is expressed in units of DEV_BSIZE (usually 512 bytes). For large writes, the optimum interleave factor is typically the size of a track, while for large reads, it is about a -quarter of a track. (Note that this changes greatly depending on the +quarter of a track. +(Note that this changes greatly depending on the number and speed of disks.) For instance, with eight 7,200 RPM drives on two Fast-Wide SCSI buses, this translates to about 128 for writes and 32 for reads. A larger interleave tends to work better when the |
