Setting Volume Management preferences

Use the following preferences to modify behavior of the Volume Management application. Use the HSM_integration_enabled preference to enable the Volume Management application to work with third-party hierarchical storage management (HSM) software. Use the HSM_read_thru_supported preference to declare whether read access to secondary and tertiary volumes is supported. If your HSM system or hardware platform does not support read access from secondary and tertiary volumes, the migrated files are moved to a higher tier to be read. Using HSM_read_thru_supported requires that the HSM_integration_enabled preference be set to true. For example, the IBM Tivoli HSM product does not provide read-through capability, and the EMC DiskXtender HSM product only provides read-through capability on Windows. In such situations, use reverse migration to return files to the primary tier. Use the HSM_primary_tier_hosts preference to define the host names on which the primary tier volumes are managed by third-party HSM software. HSM migration is applied to the volume files residing on hosts defined by this preference. The hsm_capacity_alert utility estimates the capacities of the volumes and uses the values defined in this preference to send email alerts when the primary tier capacity exceeds alert levels. Volumes residing on hosts not defined by this preference are ignored for HSM migration and the hsm_capacity_alert utility. Use the HSM_secondary_tier_capacity preference to send an email alert when the capacity of the second tier volume reaches capacity. Set this preference to the estimated capacity level of the second tier volume. Compute this estimate by totaling all storage capacities of all disks mounted on the secondary tier. Use the TC_VOLUME_MONITOR_WARNING_LEVEL preference to specify when a volume reaches warning level. By default, this preference is set to 80. When a volume becomes 80 percent full, it reaches warning level and displays in the volume table of the Volume Monitor tab with a yellow background. Use the TC_VOLUME_MONITOR_CRITICAL_LEVEL preference to specify when a volume reaches critical level. By default, this preference is set to 90. When a volume becomes 90 percent full, it reaches critical level and displays in the volume table of the Volume Monitor tab with a red background.