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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 on page 56. To configure DSD

for available disks and global spares, see Configuring drive spin down for available disks and global

spares on 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 a time to suspend and a time to resume DSD. 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 dynamic spares

The dynamic spares feature lets you use all of your disks in redundant vdisks 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 vdisk. A compatible disk has enough capacity to replace the failed disk and is the same

type (SAS or SATA). If a dedicated spare, global spare, or compatible available 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.

To change the dynamic spares setting

1. In the Configuration View panel, right-click the system and select Configuration > Advanced Settings >

Disk.

2. Either select (enable) or clear (disable) the Dynamic Spare Capability option.

3. Click Apply.

HP P2000 G3 Reference Guide

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