Lenovo ServeRAID M5110 Product Manual page 3

ServeRAID M5100 Series Zero Cache/RAID 5 Upgrade, RAID 6 Upgrade, SSD Performance Accelerator,
and SSD Caching Enabler option part numbers include the following items:
M5100 Series upgrade authorization letter
Feature Activation Instructions
Figure 2 shows the flash-backed cache module, power module, and power cable.
Figure 2. Flash-backed cache module, power module, and power cable
Features
The ServeRAID M5110 and M5110e SAS/SATA controllers have the following standard features:
Auto-resume on array rebuild or array reconstruction after the loss of system power
Auto-resume uses non-volatile RAM (NVRAM) to save the rebuild progress during a host reboot or
power failure to automatically resume from the last checkpoint. Auto-resume ensures that data
integrity is maintained throughout the process. The card supports a number of features that are
able to be implemented without rebooting the server. Applications, such as email and web server,
benefit from avoiding downtime during the transition.
Online Capacity Expansion
Online Capacity Expansion (OCE) allows the capacity of a virtual disk to be expanded by adding
new physical disks or making use of unused space on existing disks, without requiring a reboot.
Online RAID Level Migration
Online RAID Level Migration, which is also known as logical drive migration, provides the ability to
migrate a virtual disk from any RAID level to any other RAID level without requiring a reboot. System
availability and application functionality remain unaffected.
ServeRAID M5110 and M5110e SAS/SATA Controllers (withdrawn product) 3