Managing the AMASS File System

Drive’s READ BLOCK LIMITS = 350 KB

MAXIOSZ = 256 KB

16 KB 16 KB 16 KB 16 KB

Each tape block can be configured as:

Minimum = 16 KB 16 x 2 = 32 KB 32 x 2 = 64 KB

64 x 2 = 128 KB

128 x 2 = 256 KB

Any of these values are valid for -b blocksize because they are:

 

32 KB 32 KB

32 KB

32 KB

 

 

 

 

 

 

 

 

 

64 KB 64 KB

64 KB

64 KB

 

 

 

 

 

 

 

 

 

128 KB128 KB 128 KB 128 KB

•a multiple of MAXIOSZ.

•less than the drive’s READ-BLOCK LIMIT.

To arrive at a value, consider the following:

•your media usage capacity.

•your expected site performance.

•your “typical” file size.

256 KB256 KB 256 KB 256 KB

6-00028-01 Rev A

Fine-tune Block Size

B-7