HP MSA 1040 HP MSA 1040 CLI Reference Guide (762782-001, March 2014) - Page 195
show advanced-settings, Host Control of Caching
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show advanced-settings Description Shows the settings for advanced system-configuration parameters. Syntax show advanced-settings Output Vdisk Background Scrub Shows whether disks in vdisks are automatically checked for disk defects to ensure system health. The interval between background vdisk scrub finishing and starting again is specified by the Vdisk Background Scrub Interval field. • Disabled: Background vdisk scrub is disabled. • Enabled: Background vdisk scrub is enabled. This is the default. Vdisk Background Scrub Interval Shows the interval between background vdisk scrub finishing and starting again, from 0-360 hours. The default is 24 hours. Partner Firmware Upgrade Shows whether component firmware versions are monitored and will be automatically updated on the partner controller. • Disabled: Partner firmware upgrade is disabled. • Enabled: Partner firmware upgrade is enabled. This is the default. Utility Priority Priority at which data-redundancy utilities, such as vdisk verify and reconstruct, run with respect to I/O operations competing for the system's processors. (This does not affect vdisk background scrub, which always runs at "background" priority.) • High: Utilities have higher priority than host I/O. This can cause heavy I/O to be slower than normal. This is the default. • Medium: Utility performance is balanced with host I/O performance. • Low: Utilities run at a slower rate with minimal effect on host I/O. SMART Shows whether SMART (Self-Monitoring Analysis and Reporting Technology) is enabled or disabled for disks. • Detect-Only: Each disk in the system retains its individual SMART setting, as will new disks added to the system. • Enabled: SMART is enabled for all disks in the system and will be enabled for new disks added to the system. This is the default. • Disabled: SMART is disabled for all disks in the system and will be disabled for new disks added to the system. Dynamic Spare Configuration Shows whether the storage system will automatically use a compatible disk as a spare to replace a failed disk in a vdisk if no compatible spare is available. • Disabled: The dynamic spares feature is disabled. This is the default. • Enabled: The dynamic spares feature is enabled. Enclosure Polling Rate Shows the interval in seconds at which the storage system will poll each enclosure's Enclosure Management Processor (EMP) for status changes, from 5-3600 seconds. The default is 5 seconds. Host Control of Caching Shows whether hosts are allowed to use the SCSI MODE SELECT command to change the storage system's write-back cache setting. • Disabled: Host control of caching is disabled. This is the default. • Enabled: Host control of caching is enabled. show advanced-settings 195