About Storage Addition Options For Oracle Database Appliance X6-2-Ha - Oracle X6-2-HA Deployment And User's Manual

When you add storage, Oracle Automatic Storage Management (Oracle ASM)
automatically rebalances the data across all of the storage including the new drives.
Rebalancing a disk group moves data between disks to ensure that every file is evenly
spread across all of the disks in a disk group and all of the disks are evenly filled to the
same percentage. Oracle ASM automatically initiates a rebalance after storage
configuration changes, such as when you add disks.
About Expanding Storage
If you need additional storage after fully populating the base shelf, you can add a
storage expansion shelf. The expansion shelf is hot-pluggable, enabling you to expand
storage without database downtime. After cabling and powering up the expansion
shelf, the system automatically configures Oracle ASM storage and data is
automatically distributed to the new shelf.
Note:
The process of rebalancing the data might impact performance until the new
storage is correctly balanced across all drives. If possible, add a storage
expansion shelf during a non-peak or non-production time period to minimize
the performance impact of the automatic storage balancing.
The addition of the storage expansion shelf includes checks across both nodes. It is
important to confirm that SSH does work across the nodes and all users can connect
as expected using their shared password.
The following are the high level steps to expand storage:
Review the Oracle Database Appliance storage options.
1.
Prepare for a storage upgrade by running checks to verify that the configuration is
2.
ready before adding storage to the base shelf or adding the expansion shelf.
Add storage if the base configuration is not full.
3.
Add the storage expansion shelf, then log in to each server node and validate the
4.
cabling. After you confirm that the cabling is correct, power on the shelf and
validate the storage.
About Storage Addition Options for Oracle Database
Appliance X6-2-HA
With this release, you can also add X7-2 storage disks to X6-2-HA Oracle Database
Appliance, with some configuration changes.

About Storage Addition Options for Oracle Database Appliance X6-2-HA

Caution:
Review cabling instructions carefully to ensure that you have carried out
cabling correctly. Incorrect connections can cause data loss when
adding a storage expansion shelf to Oracle Database Appliance with
existing databases.
Chapter 10
10-2