HP LH4r Installation and configuration of the HP NetRAID, NetRAID-1 and NetRAI - Page 16

Physical Disk Roaming and Data Migration, Fault-Tolerance and Management Features

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Chapter 1 Introduction I2O Support (HP NetRAID-3Si Adapters Only) HP NetRAID-3Si adapters support I2O (Intelligent Input/Output) with some operating systems. For a complete list of operating systems for which HP NetRAID I2O drivers are available, see the HP web site at www.hp.com/go/netserver Physical Disk Roaming and Data Migration HP NetRAID Series adapters allow physical disk roaming, in which the adapter keeps track of disk modules if they are moved to different slots in the hot swap cages, as long as the slots are all controlled by the same adapter. HP NetRAID Series adapters allow disk modules to be moved to different HP NetRAID Series adapters. HP NetRAID Series adapters can be swapped without losing data readability. 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 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 8

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Chapter 1
Introduction
8
I
2
O Support (HP NetRAID-3Si Adapters Only)
HP NetRAID-3Si adapters support I
2
O (Intelligent Input/Output) with some
operating systems. For a complete list of operating systems for which HP
NetRAID I
2
O drivers are available, see the HP web site at
www.hp.com/go/netserver
Physical Disk Roaming and Data Migration
HP NetRAID Series adapters allow physical disk roaming, in which the adapter
keeps track of disk modules if they are moved to different slots in the hot swap
cages, as long as the slots are all controlled by the same adapter.
HP NetRAID Series adapters allow disk modules to be moved to different HP
NetRAID Series adapters. HP NetRAID Series adapters can be swapped without
losing data readability.
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
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