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12593 - Balancing data with new disks
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Balancing data with new disks
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]
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