Fault-Tolerance And Management Features; Changing Capacity And Raid Levels - HP P3410A - NetRAID 1M RAID Controller Installation And Configuration Manual

Chapter 1
Once disk modules are configured for HP NetRAID-1M or 2M adapters, they can
be moved to different HP NetRAID-1M or 2M adapters, but not to earlier
generation adapters. See Chapter 8, "Upgrading to an HP NetRAID-1M or HP
NetRAID-2M Adapter," for details.

Fault-Tolerance and Management Features

Fault-Tolerance features include the following:
Automatic failed-drive detection with Autorebuild (automatic rebuild with
a hot spare or when a drive is replaced)
Manual hot-swap replacement
Battery-backed cache memory (HP NetRAID-2M only)
Management features include the following:
Monitoring of adapter configuration, data parity consistency, and SNMP
error messages
Rapid online configuration change and capacity expansion without the
need to first back up all data, reconfigure the array, and reload the data

Changing Capacity and RAID Levels

HP NetRAID-1M and 2M adapters can expand capacity and change RAID levels
of logical drives without powering down the server.
Online Capacity Expansion: You can add a physical drive to a RAID 0
or 5 logical drive. This can be an online operation if you are running
Microsoft Windows 2000, Windows NT, or Novell NetWare versions 4.2
and 5.x. Otherwise, capacity expansion is an offline operation only.
(Preparations for capacity expansion must be made, as described in
Chapter 7, "Preparing for Online Capacity Expansion.")
Online Changes to RAID Levels: You can convert a RAID 1 or 5 logical
drive to RAID 0.
NOTE
You cannot perform online conversions of logical drives that
span arrays (RAID level 10 or 50).
Introduction
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