Updating a Disk Storage Pool

To change a disk storage pool, complete the following fields and then click Finish, or click Cancel to end this task.

Description

Enter the description of the storage pool. The maximum length of the description is 255 characters.

Media Access Status

Select how client nodes and server processes (such as migration and reclamation) can access the files in the storage pool.

Readwrite Specifies that both client nodes and server processes can read and write to files stored on volumes in the storage pool.
Readonly Specifies that client nodes can only read files from the volumes in the storage pool. Server processes can move files among volumes in the storage pool, but cannot write new files.
Unavail able Specifies that client nodes cannot access files stored on volumes in the storage pool. Server processes can move files among volumes in the storage pool, but cannot write new files. Server processes can also move or copy files from this storage pool to another storage pool.

Maximum Size Threshold

Enter the maximum size for a physical file that the server can store in the storage pool during a session with a client node. Enter a number (1 to 999999) followed by a scale factor, or enter NOLIMIT. Scale factors and their meanings are:

K Kilobyte
M Megabyte
G Gigabyte
T Terabyte

For example, enter 5G to set the maximum file size to 5 gigabytes.

Next Storage Pool

Select a primary storage pool to which the server can migrate files from this storage pool.

High Migration Threshold

Enter the percentage of storage pool occupancy that specifies when the server can start migration for this storage pool.

Low Migration Threshold

Enter the percentage of storage pool occupancy to determine when the server can stop migration for this storage pool.

Cache Migrated Files

Select an option to determine whether a cached copy of a file that has been migrated remains in the disk storage pool.

Yes Specifies that caching is enabled. A cached copy of a migrated file remains in the disk storage pool.
No Specifies that caching is disabled. No cached copy of a migrated file remains in the disk storage pool.

Migration Process

Enter the number of processes that the server uses for migrating files from this storage pool. This value can be a number from 1 to 999.

Migration Delay

Enter the number of days that a file must remain in a storage pool before the file is eligible for migration from the storage pool. The number of days is counted from the day the file was last stored in the storage pool or retrieved by a client, whichever is more recent. Entering the value 0 means migration will not be delayed. The number must be an integer from 0 to 9999.

Migration Continue

Select whether to allow the server to migrate files that do not satisfy the migration delay time.

Because you can require that files remain in the storage pool for a minimum number of days, the server may migrate all eligible files to the next storage pool yet not meet the low migration threshold. Selecting yes or no determines if the server is allowed to continue migrating files that do not satisfy the migration delay time.

Yes Specifies that when necessary to meet the low migration threshold, the server continues to migrate files that do not satisfy the migration delay time.
No Specifies that the server stops migration when no eligible files remain to be migrated, even before reaching the low migration threshold. The server does not migrate files unless the files satisfy the migration delay time.