David Combs <dkcombs@panix.com> wrote:
> First -- is that true, about protecting from disk-effects from an L-1 A or
> power-outage-caused crash?

Yes

> Second -- if this logging is so important, why in the world
> does Sun have it, by default, turned *off*?

Because until recently (S9U4 from memory) there were a (very, very) few
corner cases where UFS logging would result in a performance hit. In order
not to cause a regression in performance - even for only a few cases - it
was left off by default. I believe this is due to change in the next
version of Solaris...

> Third -- do *you* (and you and you and you too) use it, and
> why or why not?

Yes. Always. No exceptions.

> Fourth -- if you do use it, do you turn it on for *all*
> file-systems, or only some of them? (And why some and not others?)

All.

Scott