Messages in this thread | | | Date | Wed, 11 Sep 2002 19:48:39 -0700 | From | jw schultz <> | Subject | Re: XFS? |
| |
On Thu, Sep 12, 2002 at 01:01:38AM +0200, Robert Varga wrote: > On Wed, Sep 11, 2002 at 02:21:46PM -0700, jw schultz wrote: > > On Wed, Sep 11, 2002 at 08:20:36AM -0700, Nick LeRoy wrote: > > > On Wednesday 11 September 2002 01:43, jw schultz wrote: > > > I think this is a wonderful feature, albeit potentially confusing to a Newbie > > > For my O2 running IRIX I get XFS whether I like it or not, for Solaris I get > > > UFS no matter how much it sucks (I'm not really saying that it does; I don't > > > have much knowledge of it to be honest). This multitude of choices really > > > causes competition between them, and makes them all better in the long run. > > > > On Solaris and some other platforms you can, with lots of > > money, buy a license to run the Veritas journaling > > filesystem. It comes with a license manager and you have to > > get license keys to mount the filesystems. Ever had a > > filesystem not come up after a reboot because the license > > expired, i have (ouch, i told management to renew the > > license). Is veritas fast? I don't know. They hype the > > journaling, not speed. And what are you going to benchmark > > against?. > > Against UFS, of course [1] :-) Their hype is "our journal is faster than > UFS", which is probably true. They have extent-based allocation,
Comparing Veritas FS against UFS is like comparing apples and steak. Their goals are so diffent it is rediculous.
My comment is that with no apples-apples comparisons (or at least apples-pears) who knows how good it is.
> which is good for their greatest hype - performance with databases > (see all the marketing shredder-food about [Cached] QuickIO). > They have hot resizing, which fast as hell (again, compared to UFS), > they have snapshots, which are cool. And don't forget the GFS capability, > which I am yet to see in action. [2] > > So in Solaris world, for large filesystems, Veritas is the winner. I am > really looking forward to seeing how will they do in the OpenSource > world.
Don't get me wrong, feature-wise Veritas FS is a great product. Their hot resizing (including shrink) is a must-have feature. I never had a lick of problems with it despite flaky GbIX (Gibabit FCAL Interface transceivers).
> [1] Actually they benchmark Oracle on raw devices vs. Cached QuickIO, too. > [2] Even tough the options are expensive, in my experience all of them > work perfectly.
-- ________________________________________________________________ J.W. Schultz Pegasystems Technologies email address: jw@pegasys.ws
Remember Cernan and Schmitt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |