Users Guide

data-combining feature in 4KB sector hard-disk drives results in improved data efficiency and error

correction capabilities.

Storage Management supports virtual disk creation on 4KB sector hard-disk drives connected to PERC 9

hardware controllers.

NOTE: 4KB sector hard-disk drives are not supported on controllers prior to PERC 9 family of

hardware controllers. If the 4KB sector hard-disk drive is connected to any hardware controller prior

to PERC 9, the 4KB sector hard-disk drive is displayed as Unsupported.

• When you create a virtual disk using the Advanced Wizard, you can select the physical disk sector

from the Sector Size drop-down list. The options available are:

– 512B

– 4KB

• You cannot use both 4KB sector hard-disk drives and 512B sector hard-disk drives for a virtual disk

creation as mixing of hard-disk drive sectors is not allowed in Storage Management.

NOTE: If the system contains any 512e sector hard-disk drives, the 512e sector hard-disk drives

are identified/reported as 512B sector hard-disk drives and follows the behavior of the 512B

sector hard-disk drives.

Hot Spare Considerations — 4KBSector Hard-Disk Drives

The following is the Hot Spare considerations (Dedicated and Global Hot Spare) for 4KB sector hard-disk

drives supported on PERC 9 hardware controllers:

• You cannot assign 4KB sector hard-disk drives as Dedicated Hot Spare for virtual disks created with

512B sector hard-disk drives and vice versa.

• You cannot assign 4KB sector hard-disk drives as Global Hot Spare, if the virtual disk created consists

of 512B sector hard-disk drives only and vice versa.

• You can assign 4KB sector hard-disk drives as Global Hot Spare, if there are 4KB sector hard-disk

drives and 512B sector hard-disk drives in the virtual disks created and vice versa.

NOTE: If you perform this action a warning message is displayed.

Related Tasks

• Create Virtual Disk Advanced Wizard

Reconfiguration Considerations — 4KB Sector Hard-Disk Drives

You cannot reconfigure 4KB sector hard-disk drives with virtual disks that consist of 512B sector hard-

disk drives and vice versa.

T10 Standard Protection Information (PI) — Data Integrity

Field

The introduction of PERC 9 hardware controllers in Storage Management has brought about an essential

change in storage solutions. Data integrity is an essential aspect in storage solutions, as data integrity

assures the accuracy and consistency of data stored in the system over the entire lifecycle of the data.