Filter
Top Products
Managing the AMASS File System
6-00028-01 Rev A Fine-tune Block Size B-3
Optimize Tape Block Size
Overall system performance is generally improved by
configuring the block size that AMASS uses to write to a tape
drive.
Tape block size is configured with the volformat -b blocksize
command. You cannot change block size on existing volumes,
only on new volumes. For a description of this command, see
“volformat” on page 3-158.
Thoroughly understand what this option does before making
any configuration changes.
Supported Drives
Refer to the AMASS Release Notes for a list of drives that
support configurable block size.
Calculating Block Size
Several factors must be considered when arriving at a value for
your tape block size.
• Your “typical” file size, your media utilization capacity, and
your expected site performance throughput
• Your system’s MAXIOSIZE value
• Your drive’s READ-BLOCK LIMIT
Caution
Use the tape block size option with care.