Part Number Information - Lenovo ServeRAID M1115 Product Manual

Sas/sata controller
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Table 1 provides the ordering part numbers and feature codes.
Table 1. Ordering part numbers and feature codes
Description
ServeRAID M1115 SAS/SATA Controller
ServeRAID M1100 Series Zero Cache/RAID 5 Upgrade
The ServeRAID M1115 option part number includes the following items:
One ServeRAID M1115 adapter card
Full-height (3U) bracket
Low-profile (2U) bracket
Documentation package
The ServeRAID M1100 Series Zero Cache/RAID 5 Upgrade option part number includes the following
items:
M1100 Series upgrade authorization key
Feature Activation Instructions
Features
The ServeRAID M1115 SAS/SATA Controller has the following standard features:
Auto-resume on array rebuild or array reconstruction after loss of system power
Auto-resume uses non-volatile RAM (NVRAM) to save rebuild progress during a host reboot or
power failure to automatically resume from the last checkpoint. Auto-resume ensures that data
integrity is maintained through 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 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 (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.
Fast initialization for quick array setup
Fast initialization quickly writes zeroes to the first and last sectors of the virtual drive. This feature
allows you to immediately start writing data to the virtual drive while the initialization is running in
the background.
Consistency check for background data integrity
Consistency check verifies that all stripes in a virtual disk with a redundant RAID level are
consistent. The consistency check will mirror data when an inconsistent stripe is detected for a
RAID 1 and will recreate the parity from the peer disks in the case of a RAID 5. Consistency checks
can be scheduled to take place periodically.
Extensive online configuration options and advanced monitoring and event notification
Management tools provide convenience for the configuration of logical volumes and alerting when
errors have occurred or are about to occur.
ServeRAID M1115 SAS/SATA Controller (withdrawn product)
Part number
Feature code
81Y4448
A1MZ
81Y4542
A1X1
2

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