Administrator Guide

Change the SMART setting
1. In the System topic, select Action > Advanced Settings > Disk.
2. Set the SMART Configuration option to one of the following:
● Don’t Modify. Allows current disks to retain their individual SMART settings and does not change the setting for new
disks added to the system.
● Enabled. Enables SMART for all current disks after the next rescan and automatically enables SMART for new disks
added to the system. This option is the default.
● Disabled. Disables SMART for all current disks after the next rescan and automatically disables SMART for new disks
added to the system.
3. Click Apply. If you chose to disable SMART, a confirmation panel appears. Click Apply to accept the changes or click
Cancel.
Configuring the EMP polling rate
You can change the frequency interval that the storage system polls each attached enclosure’s management processor (EMP)
for changes to temperature, power supply and fan status, and the presence or absence of disks. 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.
Change the EMP polling rate
1. In the System topic, select Action > 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.
Configuring dynamic spares
The dynamic spares feature lets you use all of your disks in fault-tolerant disk groups without designating a disk as a spare. With
dynamic spares enabled, if a disk fails and you replace it with a compatible disk, the storage system rescans the bus, finds the
new disk, automatically designates it a spare, and starts reconstructing the disk group. A compatible disk has enough capacity
to replace the failed disk and is the same type: SATA SSD, SAS SSD, enterprise SAS, or midline SAS. If a spare or available
compatible disk is already present, the dynamic spares feature uses that disk to start the reconstruction and the replacement
disk can be used for another purpose.
Change the dynamic spares setting
1. In the System topic, select Action > Advanced Settings > Disk.
2. Either select enable, or clear to disable the Dynamic Spare Capability option. The dynamic spares setting is enabled by
default.
3. Click Apply. If you chose to disable dynamic spares, a confirmation panel appears. Click Apply to accept the changes or click
Cancel.
Configuring drive spin down for available disks and global spares
For spinning disks, the drive spin down (DSD) feature monitors disk activity within system enclosures and spins down inactive
disks to conserve energy. You can enable or disable DSD for available spinning disks that are in non-ADAPT linear disk groups,
for spinning disks that are not in a virtual pool, and for global spares. You can also set the period of inactivity after which
available disks and global spares automatically spin down.
Working in the System topic
69