Users Guide

Data integrity is a practical solution for protecting the system against data loss in the event of a warning
of failure.
This new feature supported on PERC 9 hardware controllers allows you to configure T10 Protection
Information (PI) to virtual disks. The T10 Protection Information (PI) feature validates the data written and
read from a drive to detect errors.
NOTE: If you use the Advanced Wizard to create a virtual disk, you can enable T10 PI by selecting
the option from the Select Virtual Disk Type drop-down list.
Related Tasks
• Create Virtual Disk Express Wizard
• Create Virtual Disk Advanced Wizard
Hot Spare Considerations — T10 Protection Information Capability
The following is the Hot Spare considerations (Dedicated and Global Hot Spare) for T10 Protection
Information (PI) supported physical disks on PERC 9 hardware controllers:
• Only T10 PI supported physical disks can be assigned as a Dedicated Hot Spare to T10 PI enabled
virtual disks.
• Physical disks which are T10 PI supported or unsupported can be assigned as Dedicated Hot Spare to
T10 PI disabled virtual disks on PERC 9 hardware controllers.
• If a T10 PI enabled virtual disk is present along with T10 PI disabled virtual disk, assigning a physical
disk which is T10 PI unsupported as Global Hot Spare will be successful.
NOTE: An error message is displayed if you perform this action.
• If only T10 PI disabled virtual disks are present, a T10 PI supported physical disk can be assigned as
Global Hot Spare.
• A T10 PI enabled virtual disk cannot be reconfigured using a T10 PI non-capable physical disks
Related Tasks
• Create Virtual Disk Express Wizard
• Create Virtual Disk Advanced Wizard
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