RE: Disk Replacement

[Vern Hamberg <vhamberg@xxxxxxxxxxxxxxxxxxxxxxxxx>]

The answer is Yes. One caveat - in order for the system to arrange logicals 
so that they can be shared, it is necessary to save both the logicals and 
their parent physical. If you save only the logical files, the order does 
not get rearranged for sharing. I just tried this last week. You do not 
need to restore the physical for the logicals to get rearranged, just save it.

Vern

At 01:15 PM 7/13/2004, you wrote:
> Pro's/con's of unload/reload versus replacing a series of drives online.
>
> Pro's of unload/reload
> 1)  When you restore it will make intelligent decisions as to the order to
> restore logical files.  This will help it to reuse access paths if you
> previously created logical files in the wrong order.
> 2)  Should balance your disks better, thus increasing performance.
>
> Pro's of replacing a series of drives online:
> 1)  No downtime.
>
> Point of information:  The odds of missing something during an
> unload/reload are a lot smaller if your read the B&R V5R3 manual
> carefully.  Then even suggest running the
> RSTLIB SAVLIB(*ALLUSR) DEV(TAPxx) MBROPT(*NEW) ALWOBJDIF(*ALL)
> to get those logical files, etc that might be in different libraries.
>
> Question:  If I save access paths (which dramatically reduces the restore
> time) does the system still try to recreate logical files in the order
> that best allows the reuse of access paths?
>
> Rob Berendt
> --
> Group Dekko Services, LLC
> Dept 01.073
> PO Box 2000
> Dock 108
> 6928N 400E
> Kendallville, IN 46755
> http://www.dekko.com