Fragmented snaps ?????

[bgoodman4]

This is probably a dumb question but I would rather know the ans than keep quiet and remain ignorant....

Why would fragmented snaps slow the PC down? Presumably it is not the snaps that are being used for the min to min operation of the PC so the state of the snaps should have no impact on performance. Now perhaps its not the case that snap fragmentation does impact performance but it does seem to me that after defraging the snaps my PC performs a lot better. Am I nuts or not,,,and why.

[Owl]

The Windows disc accesses are intercepted by RBRx and redirected to where the real data is. In order to resolve that redirection, RBRx has to refer to its database to see where any particular data cluster is now as opposed to where the normal file allocation tables say it should be.

Defragging the snapshots is actually a process of cleaning the database so it is faster to access.

[bgoodman4]

Ah, thanks, thats good to know.

Once I am learning about defrags I have a 2nd question.

From previous threads I have read on the subject it sounds as if defraging snaps either automatically due to the number of snaps deleted etc or manually through the console provides the same result. However manual defrags take considerably longer with the process pausing at 33% for quite some time for each snap but there is no pause when the auto defrags are running. In addition, if you run a manual defrag twice it takes the same amount of time with the same pause as the first one. If the snaps have just been defragged you would think that the time to run a 2nd defrag would be considerably less since no snaps are fragmented during this 2nd run so no defragging is nec.

Are the 2 types of defrag different or not?

If they are both doing the same joib why does one take so much longer to run than the other?

Why does the manual defrag run 2x take the same time to run each time?

[wvbill]

The best way to do a manual defrag, and the way I do it, is to do it at boot up -- i.e. on boot up hit home-key at RollBack screen then select defrag. This will run the same routines as the automatic defrag and will run faster/do a better job since RollBack has a dedicated machine in the pre-boot environment.

Bill

[Owl]

Originally Posted by bgoodman4

Are the 2 types of defrag different or not?

If they are both doing the same joib why does one take so much longer to run than the other?

Why does the manual defrag run 2x take the same time to run each time?

Very good questions and I don't know the answer.