hsmgroupedmigrate

The transfer of multiple files per transaction can improve performance when migrating many small or medium size files (up to 100 MB).

The default action is to migrate each file in a single transaction and make a stub file when the transaction is successful.

When this option is set to YES the HSM transaction grouping is activated. A group of files is migrated in each transaction with the IBM Storage® Protect server when either the transaction byte limit or the transaction group limit is reached. The transaction byte limit has a default of 25 MB, and can be set with the txnbytelimit option. The transaction group limit is specified with the txngroupmax option. The txngroupmax option is set on the server in the options file or on the node definition on the server. If a file with a different management class setting is added to the group, the group is migrated immediately.

If a file with a different file system root is added to the group, the group is migrated immediately.

The hsmgroupedmigrate option works in LAN-free configurations and when data is transferred over LAN.

Options File

Place this option in the client options file dsm.opt.

Parameters

NO

The dsmmigrate command migrates one file per transaction with the IBM Storage Protect server. This is the default.

YES

The dsmmigrate command migrates a group of files in each transaction with the IBM Storage Protect server.