Re: [PERFORM] freebsd/softupdates for data dir

2006-04-11 Thread Jim C. Nasby
On Thu, Apr 06, 2006 at 09:45:34AM -0400, Vivek Khera wrote: > > On Apr 5, 2006, at 6:07 PM, Jim Nasby wrote: > > > > >More importantly, it allows the system to come up and do fsck in > >the background. If you've got a large database that's a pretty big > >benefit. > > That's a UFS2 feature,

Re: [PERFORM] freebsd/softupdates for data dir

2006-04-06 Thread Vivek Khera
On Apr 5, 2006, at 6:07 PM, Jim Nasby wrote: More importantly, it allows the system to come up and do fsck in the background. If you've got a large database that's a pretty big benefit. That's a UFS2 feature, not a soft-updates feature. ---(end of broadcast)

Re: [PERFORM] freebsd/softupdates for data dir

2006-04-05 Thread Jim Nasby
On Apr 4, 2006, at 10:41 AM, Vivek Khera wrote: On Apr 3, 2006, at 10:10 PM, Mark Kirkwood wrote: I've always left them on, and never had any issues...(even after unscheduled power loss - which happened here yesterday). As I understand it, the softupdate code reorders *metadata* operations,

Re: [PERFORM] freebsd/softupdates for data dir

2006-04-04 Thread Vivek Khera
On Apr 3, 2006, at 10:10 PM, Mark Kirkwood wrote: I've always left them on, and never had any issues...(even after unscheduled power loss - which happened here yesterday). As I understand it, the softupdate code reorders *metadata* operations, and does not alter data operations - so the ef

Re: [PERFORM] freebsd/softupdates for data dir

2006-04-03 Thread Mark Kirkwood
Miguel wrote: Hi, reading the archives i cant find a clear answer about softupdates in freebsd, is it recommended to enable it for the data directory? There is a pretty good article about softupdates and journelling here: http://www.usenix.org/publications/library/proceedings/usenix2000/gene