Recommendations on when to use soft updates

[John Baldwin]

On Friday 20 November 2009 7:57:56 am Mikael Bak wrote:
> Hi list,
> 
> I'm quite new to FreeBSD.
> I would like to know if there are any official recommendations on when
> to use soft updates and when not to use them.
> 
> I currently maintain only one FreeBSD machine.
> 
> $ uname -v
> FreeBSD 7.2-RELEASE-p4 #0: Fri Oct  2 08:22:32 UTC 2009
> root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC
> 
> I have two identical SATA disks in a raid1 using gmirror like this:
> 
> $ df -h
> Filesystem            Size    Used   Avail Capacity  Mounted on
> /dev/mirror/gm0s1a    3.9G    303M    3.3G     8%    /
> devfs                 1.0K    1.0K      0B   100%    /dev
> /dev/mirror/gm0s1d    989M    1.0M    909M     0%    /tmp
> /dev/mirror/gm0s1e     48G    1.7G     43G     4%    /usr
> /dev/mirror/gm0s1f     53G    1.2G     48G     2%    /var
> devfs                 1.0K    1.0K      0B   100%    /var/named/dev
> 
> Currently /usr and /var uses soft updates, but / does not.
> 
> The machine acts as a front MX with lots of reads and writes in /var.
> 
> Is this a reasonable setup?

Yes.

-- 
John Baldwin