Adding a Disk Shelf to an Existing Storage Pool (BUI)

Use the following task to add a disk shelf to an existing storage pool.

Before You Begin

• For recommendations on how many drives to select per pool, as well as other considerations and guidelines, see Storage Pool Concepts.

• You must select the same data profile currently used in the existing pool. To understand the different data profiles, see Data Profiles for Storage Pools.

• If there is insufficient storage to configure the system for the data profile and its options, some attributes may not be supported. For example, it is impossible to preserve NSPF characteristics when adding a single disk shelf to a double parity RAID configuration with the NSPF option. You can add the disk shelf, but cannot use the NSPF option.

• Do not perform a pool configuration operation while a disk firmware upgrade is occurring. To check if an upgrade is in progress, navigate to Maintenance > System.

1. Install the new disk shelf using Adding a New Disk Shelf in Oracle ZFS Storage Appliance Customer Service Manual.
2. Go to Configuration > Storage.
3. From the Available Pools list, select an online pool to which to add the disk shelf.
4. Click ADD.
5. For this disk shelf, select the number of data drives for the storage pool.

   If the new disk shelf does not appear, click ABORT, check the disk shelf cabling and power, and begin this procedure again.

   • If all drives are the same size or rotational speed, or if one size is selected among multiple sizes, the maximum number of drives available is allocated by default. If the storage device contains drives of different rotational speeds or models, no drives are allocated by default.

   • It is strongly recommended that pools include only devices of the same size and rotational speed to provide consistent performance characteristics.

   • Monitor or limit space usage because you may experience reduced performance when pools approach full capacity.

6. (Optional) Add any cache or log devices from the disk shelf to the pool.
7. Click COMMIT.
8. For data drives, select the same data profile used in the existing pool.
9. If you allocated log or cache devices, select the appropriate profiles.

   • For log devices, click Log Profile and select either the mirrored or striped profile. If you allocated an even number of log devices to the pool, select the mirrored profile.

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     Caution  -  A double failure can cause loss of data from a log in a striped configuration. It is highly recommended to configure a mirrored log profile for added redundancy. For more information, see Data Profiles for Storage Pools.

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   • For cache devices, the profile is always striped, as shown under Cache Profile.

10. Click COMMIT.

Related Topics

• Unconfiguring a Storage Pool (BUI)

• Adding a Cache, Meta, or Log Device to an Existing Storage Pool (BUI)