Performance considerations

Use this information to scan a system connection without degrading performance.

Running a scan policy on an IBM Storage Scale system can be resource intensive and cause noticeable performance degradation on the IBM Storage Scale system. Often, system administrators choose to designate certain nodes or node classes for running the scans. The IBM Spectrum® Discover interface has an input field when creating IBM Storage Scale connections for the administrator to specify which nodes or node class(es) they would like to run the scan on. The value all will run the scan across all nodes in the cluster. Any other list (comma separated) will be treated as a list of nodes or node classes on which to run the scan. Scan times vary by the size of the filesystem, how many nodes are used in the scan, how many CPUs are used per node, and whether or not the IBM Storage Scale cluster metadata is in flash memory.