Software Support

• SAS 6/iR controller family
• PERC S100, S110, and S300 controllers
• PERC H200, H700, and H800 controllers
• PERC H310 Adapter, PERC H310 Mini Monolithic, PERC H310 Mini Blades, PERC H710 Adapter, PERC H710 Mini
Blades, PERC H710 Mini Monolithic, PERC H710P Adapter, PERC H710P Mini Blades, PERC H710P Mini
Monolithic, and PERC H810 Adapter controllers
RAID Controller Features
Different controllers have different features. If you have more than one controller attached to your system, you may
notice that the tasks displayed on the Information/Configuration page of the controller are different for each controller.
Controllers may also have differences in their read, write, and cache policies as well as how they handle hot spares. You
should be aware of these differences when creating virtual disks and assigning hot spares.
The following describes some of the RAID controller features and provides links to a more detailed explanation. For
information on the features supported by the controllers, see Supported Features.
• Hot spares — On RAID controllers, a hot spare is a backup for a disk that fails. See Protecting Your Virtual Disk
With A Hot Spare.
• Rebuilding data — You can rebuild data from a failed physical disk if the disk is a member of a redundant virtual
disk. See Rebuilding Redundant Information.
• Virtual disk expansion — Virtual disk expansion enables you to expand the capacity of a virtual disk while it
remains online by adding additional disks to the virtual disk. This feature is also known as online capacity
expansion (OLCE). See Virtual Disk Tasks.
• RAID migration — After creating a virtual disk, you can change the RAID level. See Reconfiguring Or Migrating
Virtual Disks.
• Moving physical and virtual disks to another controller — This feature enables you to move the physical and
virtual disks from one system to another. See Moving Physical And Virtual Disks From One System To Another.
• Read, write, and cache policies — The manner in which a controller reads and writes data can vary. The read,
write, and cache policies have implications for data encryption and system performance. See RAID Controller
Read, Write, Cache, And Disk Cache Policy.
• Check consistency — A check consistency determines the integrity of the redundant data on a virtual disk.
When necessary, this feature rebuilds the redundant information. See Maintaining The Integrity Of Redundant
Virtual Disks.
• Patrol Read — Patrol read identifies disk errors to avoid disk failures, data loss, or corruption. For more
information, see Setting The Patrol Read Mode.
• Disk migration or foreign configurations — Some controllers enable you to move physical disks that contain one
or more virtual disks to another controller. The receiving controller is able to recognize and import the foreign
configuration (virtual disks). For more information, see Foreign Configuration Operations.
Controller — Supported RAID Levels
RAID controllers may support different RAID levels. For information on supported RAID levels for a controller, see
Supported Features.
Controller — Supported Stripe Sizes
When creating a virtual disk, you must specify the stripe size for the virtual disk. Different controllers have different
limitations on the stripe sizes they can support. For information on the supported stripe sizes for a controller, see the
virtual disk specifications section for the controller in Supported Features.
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