MSA 2040 SMU Reference Guide

50 Configuring the system
Scheduling drive spin down for all disks
For all disks that are configured to use drive spin down (DSD), you can configure a time period to suspend and
resume DSD so that disks remain spun-up during hours of frequent activity.
To configure DSD for a vdisk, see "Configuring drive spin down for a vdisk" (page 58). To configure DSD for
available disks and global spares, see "Configuring drive spin down for available disks and global spares"
(page 49).
DSD 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.
• If a suspend period is configured and it starts while a disk has started spinning down, the disk spins up again.
To schedule DSD for all disks
1. In the Configuration View panel, right-click the local system and select Configuration > Advanced Settings > Disk.
2. Set the options:
• Select the Drive Spin Down Suspend Period option.
• Set the Time to Suspend and Time to Resume options. For each, enter hour and minutes values and select
either AM, PM, or 24H (24-hour clock).
• If you want the schedule to apply only Monday through Friday, select the Exclude Weekend Days from
Suspend Period option.
3. Click Apply. When processing is complete a success dialog appears.
4. Click OK.
Configuring the EMP polling rate
You can change the frequency interval at which the storage system polls each attached enclosure’s EMP for status
changes. Typically you can use the default setting.
• Increasing the interval might slightly improve processing efficiency, but changes in device status are
communicated less frequently. For example, this increases the amount of time before LEDs are updated to reflect
status changes.
• Decreasing the interval slightly decreases processing efficiency, but changes in device status are communicated
more frequently. For example, this decreases the amount of time before LEDs are updated to reflect status
changes.
To change the EMP polling rate
1. In the Configuration View panel, right-click the system and select Configuration > Advanced Settings > Disk.
2. Set the EMP Polling Rate interval. The options are 5, 10, or 30 seconds; or 1, 5, 10, 15, 20, 25, 30, 45, or 60
minutes. The default is 5 seconds.
3. Click Apply.
Changing FDE settings
In the Full Disk Encryption Settings panel you can change settings for these options:
• FDE general configuration
• Set/create the passphrase
• Clear lock keys
• Secure the system
• Repurpose the system
• Repurpose disks
• FDE import lock key IDs