Dell UCS-71 User's Guide download pdf (Page 55)

PERC H200 and 6Gbps SAS HBA BIOS 55

CAUTION: Data on all disks will be lost. It is recommended that you back up all

data before performing these steps.

There are several limitations when creating a RAID 10 virtual disk:

• All disks must be either Dell-compliant SAS or SATA HDDs or SSDs.

• SAS and SATA physical disks cannot be used in the same virtual disk.

• HDDs and SSDs cannot be used in the same virtual disk.

• There must be a minimum of 4 physical disks and a maximum of

10 physical disks in a RAID 10 virtual disk. An even number of

physical disks need to be selected for a RAID 10 volume.

Press <C> and then select

Save changes

when the virtual disk has been

fully configured.

NOTE: There is an option to create a hot spare for a RAID 10 virtual disk.

After the virtual disk is created, entering the Manage Hot Spares screen

allows the option to assign a hot spare. Only drives that are compatible with

the new virtual disk configuration can be selected. There is a maximum of

2 hot spares supported globally. Hot spares only apply to a redundant volume

if it is of the same type and at least the same capacity of the volume.

Once the virtual disk has been created, a Background Initialization is

automatically scheduled on the virtual disk.

NOTE: RAID 10 provides protection against the failure of multiple physical

disks, as long as both drives within a mirrored pair do not fail. When a disk

fails, the physical disk can be replaced and the data re-mirrored to the

physical disk, maintaining data integrity.

NOTE: Only one background task can be performed on the PERC H200 card at any

time. If there is already a resynchronization or Background Initialization in progress

on another virtual disk when a new virtual disk is created, the Background

Initialization for the new virtual disk will be scheduled and given a status of BGI

Pending. The pending Background Initialization will automatically start when the

existing background process completes.

NOTE: A background initialization automatically starts after you configure a RAID 1

virtual disk. Once started, the background initialization process cannot be stopped.

PERC H200.book Page 55 Tuesday, July 13, 2010 4:15 PM

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Dell UCS-71 User's Guide Page 55