Performance criteria when creating files

BS2000 users and system administrators can generally only influence the placement of the files with respect to logical volumes. At physical level a number of logical volumes can be located on the same physical disk. The resultant effects on performance and the performance measures are described in section "Disk organization and accesses from the BS2000 viewpoint".

Information on the performance of Net-Storage is provided in section "Net-Storage".

In the following sections in this chapter the (previous) term “disk” is still used synonymously for the (current) term “logical volume”.

As a rule the explicit definition of a file location is not to be recommended. In unfavorable cases this can even have a negative influence on the performance.