HP MSA 2040 CLI Reference Guide

ManualsBrandsHP ManualsStorageHP MSA 2040 SAS Dual Controller SFF Storage

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set disk-parameters 151

set disk-parameters

set drive-parameters (Deprecated)

Use set disk-parameters.

Description Sets parameters that affect disk operation. Two features controlled by these parameters are disk

Self-Monitoring Analysis and Reporting Technology (SMART) and drive spin down.

• Disks equipped with SMART technology can alert the controller of impending disk failure. When

SMART is enabled, the system checks for SMART events one minute after a restart and every five

minutes thereafter. SMART events are recorded in the event log. Changes to the SMART setting

take effect after a rescan or a controller restart.

• The drive spin down feature monitors disk activity within system enclosures and spins down

inactive disks, based on user-specified settings. This command sets spin-down parameters for

available disks and global spares. To set spin-down parameters for a vdisk, use set vdisk.

NOTE: Drive spin down affects disk operations as follows:

• Spun-down disks are not polled for SMART events.

• Operations requiring access to disks may be delayed while the disks are spinning back up.

Syntax

set disk-parameters

[smart enabled|disabled|on|off|detect-only]

[spin-down enabled|disabled|on|off]

[spin-down-delay

delay

]

Parameters smart enabled|disabled|on|off|detect-only

Optional. Sets whether SMART is enabled or disabled for disks:

• disabled or off: Disables SMART for all disks in the system and for all disks added to the

system.

• enabled or on: Enables SMART for all disks in the system and for all disks added to the system.

This is the default.

• detect-only: Detects but does not change the SMART setting of each disk in the system, and

for each new disk added to the system.

spin-down enabled|disabled|on|off

Optional. Sets whether available disks and global spares will spin down after a period of inactivity

shown by the spin-down-delay parameter.

• disabled or off: Drive spin down for available disks and global spares is disabled. This is the

default.

• enabled or on: Drive spin down for available disks and global spares is enabled. If the

spin-down-delay parameter either is not specified or is specified with the value 0, the

spin-down delay will be set to 15 minutes.

spin-down-delay

delay

Optional. Sets the period of inactivity after which available disks and global spares will spin down.

Setting the delay to 1–360 minutes will enable spin down; specifying the value 0 will set the delay to

15 m i nu t e s. T he de f au lt is 15 m in ut e s.

Example Enable SMART and drive spin down, and set the spin-down delay to 10 minutes:

# set disk-parameters smart on spin-down on spin-down-delay 10

Success: Command completed successfully. (2012-01-21 11:59:37)