Ansicht
Dokumentation
12603 - Balancing data with new disks
ABAP Short Reference General Data in Customer MasterThis documentation is copyright by SAP AG.
Balancing data with new disks
Hi Joan,option #2 is crazy, because you are adding new drives, that are
empty and are not used at all.
Option #1 is the one, I would use. You would have to ensure, that
you insert the drives, use STRASPBAL and check that the usage is
really even. Otherwise you have to repeat the BEFORE starting SAP as
long as this is OK.
Opotion #3 is the most time consuming, but always the "safest".
I would do a backup beforehand and start with option #1.
Regards
Volker
--- In DoNotReply@consolut.eu, "Joan Mir Rubio" <jmirZc...>
wrote:
> Hi all,
>
>
>
> This weekend we are installing 20 new disks in our AS400 and we
would
> like to balance all data in order to improve the performance.
>
> We think that we have 3 different ways to balance the data:
>
>
>
> 1.- Capacity balance. All data will be shared between disks
depending on
> the capacity. However, we think that is possible that all data of a
> table will be in a single disk.
>
> 2.- Usage balance. All data will be shared depending on a set of
> statistics. Using this system we could obtain a small disk full
of data
> while the new big disks will be rather empty.
>
> 3.- Apply a backup and restore of the R3<SID>DATA library. In
this case
> all the data will be shared among the disks in a most equilibrate
way,
> where the data of all the tables will be shared in different
disks.
>
>
>
> Is it true?. Do you know other ways to balance the data? Is the 3rd
> solution the best one?. What will you do in our case? (The
database is
> 400 GB)
>
>
>
> Thanks for your comments.
>
>
>
> Best regards,
>
> Juan Mir
>
>
>
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
Durban Tours - Südafrika Safari
Fill RESBD Structure from EBP Component Structure rdisp/max_wprun_time - Maximum work process run time
This documentation is copyright by SAP AG.
Length: 2565 Date: 20240420 Time: 041401 sap01-206 ( 3 ms )
