Dell PowerEdge H730P, User Manual

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Maximum
Power Savings Spin down is enabled for configured, unconfigured, and hot spare disks.
Customized
Power Savings All power savings features are customizable. You can specify a Quality of Service
window during which the configured disks are excluded from spin-down.
Configured Spin Down Delay
NOTE: The Configured Spin Down Delay option is not applicable for the No Power Savings mode.
The amount of time to wait before spinning down disks can be set using Configured Spin Down Delay .
The minimum value of the timer is 30 minutes (default) and the maximum is one day. Disks are spun
down automatically and spun up when accessed. All disks are spun up on reboot.
NOTE: There is a delay in I/O operations when a configured disk is being spun up.
Types Of Virtual Disk Initialization
PERC H730P supports two types of virtual disk initialization:
• Full Initialization
• Fast Initialization
CAUTION: Initializing virtual disks erases files and file systems while keeping the virtual disk
configuration intact.
NOTE: The following initialization operations are not applicable for non-RAID disks.
Full Initialization
Performing a full initialization on a virtual disk overwrites all blocks and destroys any data that previously
existed on the virtual disk. Full initialization of a virtual disk eliminates the need for the virtual disk to
undergo a Background initialization (BGI). Full initialization can be performed after the virtual disk is
created.
During full initialization, the host cannot access the virtual disk. You can start a full initialization on a
virtual disk by using the
Slow Initialize option in the Dell OpenManage storage management application.
For more information on using the BIOS Configuration Utility to perform a full initialization, see
Initializing Virtual Disks .
NOTE: Full initialization does not support RAID 6 virtual disks with the PI enabled. BGI runs instead.
NOTE: For better performance, you can perform full initialization on virtual disks. Full initialization
does not support RAID 6 and RAID 60 virtual disks with the PI feature enabled.
NOTE: If the system reboots during a full initialization, the operation aborts and a BGI begin on the
virtual disk.
Fast Initialization
A fast initialization on a virtual disk overwrites the first and last 8 MB of the virtual disk, clearing any boot
records or partition information. The operation takes only 2–3 seconds to complete, but it is followed by
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