Quick Integration Guide

Intel® RAID SSD Cache Controller RCS25ZB040/RCS25ZB040LX Quick Installation Guide 25
7 Getting Started With Intel
®
RAID SSD
Cache Controller
Note: Intel
®
RAID SSD Cache Controller Caching group is created by default when you install
a Intel
®
RAID SSD Cache Controller for the first time. If you want to create a Intel
®
RAID
SSD Cache Controller Caching group manually, use the steps provided in the section
below, Manual Configuration.
Auto Configuration
Note: The Auto configuration method, R1 using the Flash Memory module is created with WB
write policy option only.
The Default or Auto configuration is created on system initialization by firmware using
the Flash memory modules present on the Intel
®
RAID SSD Cache Controller.
Any modification made by you is treated as a change in the configuration, and the
configuration is changed from Default or Auto configuration to Manual configuration. If
you modify the Default configuration, the new Manual configuration data is stored in
NVRAM, and you cannot revert to Auto or Default configuration. To revert to Auto or
Default configuration, you must select the factory default settings at the controller level.
When the Auto or Default configuration is modified, firmware generates an event to
notify the administrating application.
• Based on the type of the RAID level and over provisioning, the size of the Nytro
cache varies.
• Intel
®
RAID SSD Cache Controller software 1.0 supports only RAID 0 and RAID 1
levels for Flash-based cache volume based on the Intel
®
RAID SSD Cache
Controller Firmware Configuration parameters. Intel
®
RAID SSD Cache Controller
software 1.0 supports RAID 0 write and write back. If for some reason, the Auto or
Default configuration fails, it is switched to the Manual configuration.
• You cannot create a cache volume from a combination of Flash memory modules
and external SSD drives, however if there are external SSD connected, they are
treated as normal SATA physical drives.
• Operations, such as spare commission, rebuild, consistency check, initialization, and
copy back are not supported on cache volume. Multiple volumes can be created
using the Flash drives. Using either RAID 0 or RAID 1 level.
• By default, auto configuration creates only one Nytro cache volume; you cannot
change it unless you delete and create a new Nytro cache volume manually.
You can apply the factory default settings using the WebBIOS, CmdTool2, or PrebootCLI
(not through RWC2).