Storage partitions
A storage partition is a logical grouping of volume groups, volumes, and hosts that can have high availability that is configured or migrated nondisruptively between systems.
Storage partitions
- Local partitions: These are partitions that are created and managed locally on a single IBM FlashSystem storage system. Local partitions are used to organize and manage storage resources within a single system. They allow administrators to allocate storage capacity to different hosts or applications, set performance characteristics, and apply data services like compression and encryption. Local partitions are the basic building blocks for managing storage on an IBM FlashSystem.
- High Availability (HA) partitions: HA partitions are used to create a highly available storage environment by spanning partitions across multiple IBM FlashSystem storage systems. This allows the storage to remain accessible even if one of the systems fails. HA partitions are created and managed by using IBM Spectrum Connect software, which provides centralized management of IBM storage platforms. With HA partitions, volumes are mirrored between two different external storage controllers to ensure high availability
How to navigate to storage partitions page?
- Click Main menu, expand Inventory in the left navigation panel, and click Storage systems. The storage systems tabular page is displayed. Click the specific FlashSystem Grid name in the Storage systems column to go to FlashSystem Grid overview page. Then, click Storage partitions in the left navigation panel.
- From the storage system details page, click Storage partition in the left navigation panel. The details of the storage partitions associated with the specific storage system are displayed.
The Storage partition panel displays the partition details in a tabular view. The default columns are:
- Partition name: Specifies the name of the storage partition.
- Partition type: Specifies the storage partition type such as Local, Disaster Recovery, 2-site High Availability, and 3-site High Availability.
- Migration status: Specifies the migration status. You can see In progress, Migration error, User action required, Request submitted, and In queue migration status.
- Host written capacity: Specifies total written capacity of all volumes in a storage system.
- Snapshots: Specifies whether volume groups that are associated with partition are having snapshots or not.
- Host: Specifies the number of hosts connected with the storage partition.
- Volume group: Specifies the number of volume groups in the storage partition.
- Last updated time: Specifies the time when the storage partition was last updated.
By default, only five storage partitions are displayed on the panel. You can scroll to view other storage partitions. The column chooser option is available to display and hide columns in the tabular view.
To migrate a partition from the Storage partitions page, click the vertical dots menu at the end of each partition, and select Migrate partition. You can also select the radio button for a storage partition in the tabular view and click the Migrate now in the blue menu bar. You can select only one partition at a time for migration. For more information, see migrating a storage partition.
To evaluate partition placement from the Storage partitions page, click the vertical dots menu at the end of each partition, and select Evaluate placement. You can select only one partition at a time for placement analysis. For more information, see Evaluating workload placement advice.
You can expand a storage partition in the tabular view to view the topological representation of the storage partition. The topological view shows details, such as partition name, partition locations, host connection, firmware version, and connected DR. In the topological view, the systems with green icon are working properly and yellow icons on systems represent warnings.