How to Resize Grid Disks in Exadata (Doc ID 2176737.1)

Last updated on APRIL 18, 2024

Applies to:

Goal

This note explains how to resize griddisks and diskgroups in Exadata. The scenario in this note is that there is no free space available on the celldisks and one diskgroup (in this case RECO) has plenty of free space. We would like to shrink the RECO diskgroup to give up a good portion of the free space to the DATA disk group.  The free space available after RECO shrinks will be at a non-contiguous offset from DATA's existing space allocations.  Griddisks can use space anywhere on the celldisks without being contiguous.

You will not need to bother with shrinking a griddisk if celldisks already have sufficient space to expand existing griddisks.  In that case, you would be skipping steps 2 and 3 below where the example shows the RECO diskgroup and griddisks are shrunk (you should still verify the celldisks have enough free space before growing the DATA griddisks).

This note applies to bare metal and VM deployments.

Solution

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