[SunHELP] UFS loggin on Solaris 8

[James Lockwood]

On Tue, 21 Nov 2000, Brian Hechinger wrote:

> machine went down hard 5 times in a row.  every time it came up at the part
> where it either says /dev/rdsk/c0t0d0s0: filesystem clean or runs fsck it
> just says /dev/rdsk/c0t0d0s0: is logging and never ran fsck.

My experiences (including several hundred machines using ufs+ logging) are
identical.  File system stability is universally improved.

Keep in mind, however, that performance is affected.  Logging to a
separate fast disk (with no other usage) using Disksuite will almost
always yield a performance improvement, while logging to the free space
pool (with Solaris 7 ufs+) may increase or decrease performance depending
on the I/O mix.  Test your application and see.

As for myself, I prefer logging to a separate solid state disk on battery
backup.  Best of all worlds (except for price).

-James