If necessary, perform the following steps:Increasing pool capacity
The Storage Administrator (Provisioning) role is required to perform this task.
Adding the pool-VOL to the pool created for Dynamic Provisioning or Dynamic Tiering increases the pool capacity. The amount of pool capacity registered in the pool represents the pool capacity. You need to check the pool free capacity to determine if additional pool capacity is required. You cannot increase the pool capacity while it is being shrunk.
Notes on using Dynamic Provisioning
The internal volume, and the external volume whose Cache Mode is set to Disable cannot coexist.
The external volume whose Cache Mode is set to Enable, and the external volume whose Cache Mode is set to Disable cannot coexist.
Notes on using Dynamic Tiering
When pool-VOLs with the available monitoring information are added in a pool, tier relocation is performed. When pool-VOLs with no available monitoring information are added in a pool, the page usage rate is averaged out in a tier.
If the pool-VOL is the external volume, set Enable for Cache Mode.
If the pool-VOLs are added, the tier relocation being performed stops.
To increase pool capacity:
Perform one of following to display the Pools window.
For Hitachi Command Suite:
On the Resource tab, expand the Storage Systems tree. Right click DP Pools of the target storage system, then select System GUI.
For Storage Navigator:
In the tree on the left pane of the main window, select Pools.
From the Pools table on right, click the row of the pool you want to change.
Perform one of following to display the Expand Pools window.
Click Expand Pools.
Click Actions > Pool > Expand Pools to open the window.
In the Expand Pool window, select the pool-VOL.
Click Select Pool VOLs.
In the Select Pool VOLs window, from the Available Pool Volumes table, select the pool-VOL you want to assign, then click Add.
The selected pool-VOLs are registered in the Selected Pool Volumes table.
Up to 1024 volumes can be added including the volumes already in the pool.
If necessary, perform the following steps:
From Filter option, select ON to filter the rows.
Click Select All Pages to select pool-VOLs in the table. To cancel the selection, click Select All Pages again.
Click Options to specify the unit of volumes or the number of rows to be viewed.
To set the tier rank of an external volume to a value other than Middle, select a tier rank from External LDEV Tier Rank, then click Add.
For a pool, you can add volumes whose Drive Type/RPM settings are the same and whose RAID Levels are different. For example, you can add the following volumes to the same pool:
Volume whose Drive Type/RPM is SAS/15K and whose RAID Level is 5 (3D+1P)
Volume whose Drive Type/RPM is SAS/15K and whose RAID Level is 5 (7D+1P)
Click OK.
The Select Pool VOLs window closes. The number of the selected pool volumes appears in Total Selected Pool Volumes, and the total capacity of the selected pool-VOL appears in Total Selected Capacity.
Click Finish.
In the Confirm window, confirm the settings, in Task Name type a unique name for this task or accept the default, then click Apply.
If Go to tasks window for status is checked, the Tasks window opens.