Hard Disk parameters (caching/dma)

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# 1  
Old 02-20-2002
Hard Disk parameters (caching/dma)

Linux uses hdparm to set these parameters, my question is: what tool uses BSD systems (FreeBSD/OpenBSD/NetBSD)? There is another thing which FreeBSD implements on their filesystems: softupdates. If I forgot to enable this option when I partitioned the disk, how could I enable it at a later time?
# 2  
Old 02-20-2002
in freeBSD to enable the Soft Updates try:
# tunefs -n enable /filesystem

*tunefs - tune up an existing file system

I tried to check the similiars with hdparm in FreeBSD, NetBSD & OpenBSD but cant get and accurate answer for that.

Try to search in the man page hdparm for freebsd, openbsd and netbsd.
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