On Fri, 11 Aug 2006, David Rees wrote: > On 8/11/06, dean gaudet <dean@xxxxxxxxxx> wrote: > > On Fri, 11 Aug 2006, David Rees wrote: > > > > > On 8/10/06, dean gaudet <dean@xxxxxxxxxx> wrote: > > > > - set up smartd to run long self tests once a month. (stagger it every > > > > few days so that your disks aren't doing self-tests at the same time) > > > > > > I personally prefer to do a long self-test once a week, a month seems > > > like a lot of time for something to go wrong. > > > > unfortunately i found some drives (seagate 400 pata) had a rather negative > > effect on performance while doing self-test. > > Interesting that you noted negative performance, but I typically > schedule the tests for off-hours anyway where performance isn't > critical. > > How much of a performance hit did you notice? i never benchmarked it explicitly. iirc the problem was generally metadata performance... and became less of an issue when i moved the filesystem log off the raid5 onto a raid1. unfortunately there aren't really any "off hours" for this system. -dean - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
