Users Guide

PERC Capability CEM configuration Capable Controller
(PERC 9.1 or later)
CEM configuration Non-capable
Controller (PERC 9.0 and lower)
at run-time. Run-time or real-time means, a
reboot is not required.
Staged If all the set operations are staged, the
configuration is staged and applied after
reboot or it is applied at real-time.
Configuration is applied after reboot
Related concepts
Understanding RAID Concepts
Inventory and Monitoring Storage Devices
Viewing Storage Device Topology
Managing Controllers
Managing Physical Disks
Managing Enclosures or Backplanes
Managing PCIe SSDs
Managing Virtual Disks
Blinking or Unblinking Component LEDs
Related reference
Supported Controllers
Supported Enclosures
Summary of Supported Features for Storage Devices
Topics:
• Understanding RAID Concepts
• Supported Controllers
• Supported Enclosures
• Summary of Supported Features for Storage Devices
• Inventory and Monitoring Storage Devices
• Viewing Storage Device Topology
• Managing Physical Disks
• Managing Virtual Disks
• Managing Controllers
• Managing PCIe SSDs
• Managing Enclosures or Backplanes
• Choosing Operation Mode to Apply Settings
• Viewing and Applying Pending Operations
• Storage Devices — Apply Operation Scenarios
• Blinking or Unblinking Component LEDs
Understanding RAID Concepts
Storage Management uses the Redundant Array of Independent Disks (RAID) technology to provide Storage Management capability.
Understanding Storage Management requires an understanding of RAID concepts, as well as some familiarity with how the RAID
controllers and operating system view disk space on your system.
What Is RAID?
RAID is a technology for managing the storage of data on the physical disks that reside or are attached to the system. A key aspect of
RAID is the ability to span physical disks so that the combined storage capacity of multiple physical disks can be treated as a single,
extended disk space. Another key aspect of RAID is the ability to maintain redundant data which can be used to restore data in the event
of a disk failure. RAID uses different techniques, such as striping, mirroring, and parity, to store and reconstruct data. There are different
RAID levels that use different methods for storing and reconstructing data. The RAID levels have different characteristics in terms of
166
Managing Storage Devices