Hi Is there a way to change the schedule of this online defragmentation? Which I believe by default is running at 12 hours interval! Is there any good documentation on this anywhere? TIA --
Is there a maximum value we can put? What is the formula to calculate the max value? TIA (note: I found this attribute is in hour.)
Yes, it is in hour (min 1 hrs, default 12 hrs) The garbage collection is dependent onn another attribute - tombstoneLifetime (60 days default) The maximum garbage collection interval is one-third of the tombstone lifetime (in hours). So if you set tombstoneLifetime to 30 days and garbageCollPeriod to 300 hours, your actual garbage collection period is only 10 days, or 240 hours Maximum Garbage Collection Interval = ((tombstonelife * 24) / 3) HTH.
Why do you wish to do this? You wouldn't be likely to have a LOT of fragmentation anyway but if you put it off it will be WORSE when it is (eventually) done.
I was going to change the defragmentation frequency to every 24 hrs or every week (or so) and leave the tombstoneLifetime with default. Can I do that? By the way, will the online defragmentation process has any impact on server performance, ie. slow down / inhibit server response to directory lookup / query ? TIA
I was going to change the defragmentation frequency to every 24 hrs or As long as the max time is less or equal to 1/3 of the tombstone life time, it is possible. In your case, the tombstone is default 60 days, so max garbage interval is 480 hrs. Will you experience performance issues when you perform a harddisk defrag? The analogy is the same, that's why we don't set the online defrag to be so frequent. But I believe it will not be so bad as to inhibit access.
