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Dell PowerVault ME4 Series Storage System CLI Guide

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advanced-settings-table

This basetype is used by show advanced-settings.

Table 1. advanced-settings-table properties
Name Type Description
background-scrub string Shows whether disks in disk groups are automatically checked for disk defects to ensure system health. The interval between a scrub finishing and starting again is specified by the background-scrub-interval parameter.
  • Disabled: Background disk-group scrub is disabled.
  • Enabled: Background disk-group scrub is enabled.
background-scrub-numeric uint32 Numeric equivalents for background-scrub values.
  • 0: Disabled
  • 1: Enabled
background-scrub-interval uint16 Shows the interval between background disk-group scrub finishing and starting again, from 0 to 360 hours.
partner-firmware-upgrade string 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.
partner-firmware-upgrade-numeric uint32 Numeric equivalents for partner-firmware-upgrade values.
  • 0: Disabled
  • 1: Enabled
utility-priority string Priority at which data-redundancy utilities, such as disk group verify and reconstruct, run with respect to I/O operations competing for the system's processors. (This does not affect disk group 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.
  • Medium: Utility performance is balanced with host I/O performance.
  • Low: Utilities run at a slower rate with minimal effect on host I/O.
utility-priority-numeric uint32 Numeric equivalents for utility-priority values.
  • 0: High
  • 1: Medium
  • 2: Low
smart string 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.
  • Disabled: SMART is disabled for all disks in the system and will be disabled for new disks added to the system.
smart-numeric uint32 Numeric equivalents for smart values.
  • 0: Detect-Only
  • 1: Enabled
  • 2: Disabled
dynamic-spares string Shows whether the storage system will automatically use a compatible disk as a spare to replace a failed disk in a disk group if no compatible spare is available.
  • Disabled: The dynamic spares feature is disabled.
  • Enabled: The dynamic spares feature is enabled.
emp-poll-rate string Shows the interval in seconds at which the storage system will poll each enclosure's Enclosure Management Processor (EMP) for status changes, from 5 to 3600 seconds.
host-cache-control string 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.
  • Enabled: Host control of caching is enabled.
host-cache-control-numeric uint32 Numeric equivalents for host-cache-control values.
  • 0: Disabled
  • 1: Enabled
sync-cache-mode string Shows how the SCSI SYNCHRONIZE CACHE command is handled.
  • Immediate: Good status is returned immediately and cache content is unchanged.
  • Flush To Disk: Good status is returned only after all write-back data for the specified volume is flushed to disk.
sync-cache-mode-numeric uint32 Numeric equivalents for sync-cache-mode values.
  • 0: Immediate
  • 1: Flush to Disk
independent-cache string Shows the cache redundancy mode for a dual-controller storage system.
  • Disabled: Controller failover is enabled and data in a controller’s write-back cache is mirrored to the partner controller.
  • Enabled: The controllers use Independent Cache Performance Mode, in which controller failover is disabled and data in a controller’s write-back cache is not mirrored to the partner controller. This improves write performance at the risk of losing unwritten data if a controller failure occurs while there is data in controller cache.
independent-cache-numeric uint32 Numeric equivalents for independent-cache values.
  • 0: Disabled
  • 1: Enabled
missing-lun-response string Shows whether host drivers may probe for LUNs until the host drivers reach the LUN to which they have access.
  • Not Ready: Sends a reply that there is a LUN where a gap has been created but that it’s “not ready.” Sense data returned is sensekey = 2, code = 4, qualifier = 3.
  • Illegal Request: Sends a reply that there is a LUN but that the request is “illegal.” Sense data returned is sensekey = 5, code = 25h, qualifier = 0.
missing-lun-response-numeric uint32 Numeric equivalents for missing-lun-response values.
  • 0: Not Ready
  • 1: Illegal Request
controller-failure string Shows whether the cache policy will change from write-back to write-through when a controller fails.
  • Disabled: The controller failure trigger is disabled.
  • Enabled: The controller failure trigger is enabled.
controller-failure-numeric uint32 Numeric equivalents for controller-failure values.
  • 0: Disabled
  • 1: Enabled
super-cap-failure string Shows whether the cache policy will change from write-back to write-through when the supercapacitor that provides backup power for cache is not fully charged or fails.
  • Disabled: The supercapacitor failure trigger is disabled.
  • Enabled: The supercapacitor failure trigger is enabled.
super-cap-failure-numeric uint32 Numeric equivalents for super-cap-failure values.
  • 0: Disabled
  • 1: Enabled
compact-flash-failure string Shows whether the cache policy will change from write-back to write-through when CompactFlash memory is not detected during POST (Power-On Self-Test), fails during POST, or fails during controller operation.
  • Disabled: The CompactFlash failure trigger is disabled.
  • Enabled: The CompactFlash failure trigger is enabled.
compact-flash-failure-numeric uint32 Numeric equivalents for compact-flash-failure values.
  • 0: Disabled
  • 1: Enabled
power-supply-failure string Shows whether the cache policy will change from write-back to write-through when a power supply fails.
  • Disabled: The power-supply failure trigger is disabled.
  • Enabled: The power-supply failure trigger is enabled.
power-supply-failure-numeric uint32 Numeric equivalents for power-supply-failure values.
  • 0: Disabled
  • 1: Enabled
fan-failure string Shows whether the cache policy will change from write-back to write-through when a fan fails.
  • Disabled: The fan failure trigger is disabled.
  • Enabled: The fan failure trigger is enabled.
fan-failure-numeric uint32 Numeric equivalents for fan-failure values.
  • 0: Disabled
  • 1: Enabled
temperature-exceeded string Shows whether the system will shut down a controller when its temperature exceeds the critical operating range.
  • Disabled: The over-temperature trigger is disabled.
  • Enabled: The over-temperature trigger is enabled.
temperature-exceeded-numeric uint32 Numeric equivalents for temperature-exceeded values.
  • 0: Disabled
  • 1: Enabled
partner-notify string Shows whether the partner controller will be notified when a trigger condition occurs.
  • Disabled: Notification is disabled. The partner controller will continue using its current caching mode.
  • Enabled: Notification is enabled. The partner controller will change to write-through mode for better data protection.
partner-notify-numeric uint32 Numeric equivalents for partner-notify values.
  • 0: Disabled
  • 1: Enabled
auto-write-back string Shows whether the cache policy will change from write-through to write-back when the trigger condition is cleared.
  • Disabled: Auto-write-back is disabled.
  • Enabled: Auto-write-back is enabled.
auto-write-back-numeric uint32 Numeric equivalents for auto-write-back values.
  • 0: Disabled
  • 1: Enabled
disk-dsd-enable string Shows whether spinning disks that are available or are global spares will spin down after a period of inactivity shown by the disk-dsd-delay property.
  • Disabled: Drive spin down for available disks and global spares is disabled.
  • Enabled: Drive spin down for available disks and global spares is enabled.
disk-dsd-enable-numeric uint32 Numeric equivalents for disk-dsd-enable values.
  • 0: Disabled
  • 1: Enabled
disk-dsd-delay uint16 Specifies the period of inactivity in minutes after which spinning disks that are available or are global spares will spin down, from 1 to 360 minutes. The value 0 means spin down is disabled.
background-disk-scrub string Shows whether disks that are not in disk groups are automatically checked for disk defects to ensure system health. The interval between background disk scrub finishing and starting again is 72 hours.
  • Disabled: Background disk scrub is disabled.
  • Enabled: Background disk scrub is enabled.
background-disk-scrub-numeric uint32 Numeric equivalents for background-disk-scrub values.
  • 0: Disabled
  • 1: Enabled
managed-logs string Shows whether the managed logs feature is enabled, which allows log files to be transferred from the storage system to a log-collection system to avoid losing diagnostic data as logs fill.
  • Disabled: The managed logs feature is disabled.
  • Enabled: The managed logs feature is enabled.
managed-logs-numeric uint32 Numeric equivalents for managed-logs values.
  • 0: Disabled
  • 1: Enabled
single-controller string For a system that had two controller modules but now has only one and is intended to be used as a single-controller system, this property shows whether the operating/redundancy mode is set to Single Controller. This prevents the system from reporting the absent partner controller as an error condition. This parameter does not affect any other system settings. Installing a second, functional controller module will change the mode to Active-Active ULP.
  • Enabled: Single Controller mode is enabled.
  • Disabled: Single Controller mode is disabled.
single-controller-numeric uint32 Numeric equivalents for single-controller values.
  • 0: Disabled
  • 1: Enabled
auto-stall-recovery string Shows whether the auto stall recovery feature is enabled, which detects situations where a controller stall is preventing I/O operations from completing, and recovers the system so that at least one controller is operational, thus avoiding data-unavailability situations.
  • Disabled: Auto stall recovery is disabled.
  • Enabled: Auto stall recovery is enabled.
auto-stall-recovery-numeric uint32 Numeric equivalents for auto-stall-recovery values.
  • 0: Disabled
  • 1: Enabled
restart-on-capi-fail string Shows whether a Storage Controller that experiences a CAPI hang will be forced to restart. A CAPI hang is perceived as a management-interface hang. As part of the restart process, a dump file is created and event 107 is logged. To provide the dump file to technical support for debugging, use the Save Logs action in the PowerVault Manager.
restart-on-capi-fail-numeric uint32 Numeric equivalents for restart-on-capi-fail values.
  • 0: Disabled
  • 1: Enabled
large-pools string Shows whether the large-pools feature is enabled. This option provides the capability to create a virtual pool larger than 512 TiB on each controller by limiting the number of user-defined snapshots that can be created in snapshot trees.
  • enabled or on: The maximum size for a virtual pool will increase to 1024 TiB (1 PiB). The maximum number of volumes per snapshot tree will decrease to 9 (base volume plus 8 snapshots).
  • disabled or off: The maximum size for a virtual pool will increase to 512 TiB. The maximum number of volumes per snapshot tree will decrease to 255 (base volume plus 254 snapshots).
large-pools-numeric uint32 Numeric equivalents for large-pools values.
  • 0: Disabled
  • 1: Enabled
random-io-performance-optimization string Shows whether random I/O performance optimization is enabled or disabled.
random-io-performance-optimization-numeric uint32
  • 0: Disabled
  • 1: Enabled
cache-flush-timeout string Shows whether the cache flush timeout is enabled or disabled.
cache-flush-timeout-numeric uint32
  • 0: Disabled
  • 1: Enabled

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