> Okay, HP, you won ! You've got the $$$'s, so you get to call the shots.
> "Unix is is
> Unix" (yeah, right, and I have a bridge to sell ...), but there are a
> few things you
> should really look at before "throwing the baby out with the bath water"
> My personal favorite is the Advanced File System.
I've seen you post quite a bit in the last few months on comp.unix.tru64, and
most of the time I agree with you. Here, I think you're wrong. I've
been using Tru64 since the days when it was known as OSF 3.2, and I got
my UNIX start on HP-UX 8.07 in '91, so I've been familiar with both platforms
for a long time.
While AdvFS has become much better in the last few years, and LSM (aka
Veritas VxVM) is the most widely used (contrast that with *best*) lvm
implementation for commercial UNIX, HP's filesystem offerings are *much*
better than Tru64's.
Rather than buying/porting the most widely used products and writing their
own journaling filesystem, HP adopted the *best* LVM out there (IBMs) and the
best commercial filesystem (VxFS) of the day (still a great fs, only some of
the newer filesystems of today would have a chance of claiming "best" over
I've used Veritas' vxvm on Sun and as LSM on DU/Tru64. While doing everything
you need from an LVM, it stinks in comparison to IBM's volume manager (which
is what HP-UX 10.x + later have). With vxvm, you always know there are
partitions underneath. It's complex, and if you look at it long enough, you
see how ugly it is.
Contrast that with IBM's LVM, which doesn't have the "lvm on top of partitions"
problem. It's much cleaner looking, and it's easy to use. Also, the HP-UX
command set for LVM (most of the command names were changed when HP ported
IBM's LVM, even though underneath they're they have the same ancestor) is
the one that Linux adopted for LVM.
AdvFS is pretty stable these days and the "shared space from one domain for
many filesets" concept is pretty cool, but Veritas' filesystem is an excellent
filesystem. HP calls it `jfs', but it's just VxFS. It's solid, and has
been solid for a few years.
Quote:> It is crash proof.
These days, maybe. I've seen *lots* of panics relating to FS problems with
older AdvFS, though.
Quote:> Never fear someone accidentally pulling the plug on a
> workstation. I am responsible for about 75 systems and I haven't lost a
> in over 5 years. You'll never fsck again !
JFS is journaling, and fairly high-speed.
As I said, I've used both DEC/Compaq and HP UNIX for a long time. They
actually share a lot in common, and I like them both a lot. Tru64 edged
out HP-UX as my favorite UNIX a few years ago, but I like to think I am
good at seeing the strong points of all the UNIX flavors I work with (even
IRIX!), and also noticing the weak points. HP's filesystem & LVM offerings
aren't weak, and I think they're quite a bit better than Tru64's.
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