Small migrated files occupy much space on IBM Storage Protect server storage

Small files can occupy much space on IBM® Storage Protect server storage.

If you are using storage device class FILE on the IBM Storage Protect server, the default minimum block size is 256 KB. Every file that is migrated occupies at least 256 KB in the storage pool. For example, with the default minimum block size, a 50 MB storage volume becomes full with 200 8-KB files.

You can eliminate the default minimum block size if you migrate to a storage pool that is defined with the attribute DATAFORMAT=NONBLOCK. You define storage pool attributes with the IBM Storage Protect server command DEFINE STGPOOL.