HP ProLiant 800 SMART-2DH Array Controller Reference Guide - Page 153

Other Fault Management Features, Disk Drive Upgrades

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D-20 Understanding Drive Arrays Disk Drive Upgrades Additional storage space may be obtained with the same number of physical drives in a fault-tolerant configuration by replacing these drives with others of higher capacity. By replacing the drives one at a time, the data on the new drive is recreated from redundant information on the remaining drives. After each new drive has been rebuilt, the next can be replaced. After all drives have been replaced and rebuilt, the additional capacity on each drive can be utilized by adding a new logical drive. Array Configuration Utility will automatically recognize the unused space and guide you through the procedures to make use of it. Other Fault Management Features The SMART-2DH Controller and the network operating system offer several other fault management and data reliability features. These features include: s Auto reliability monitoring s Dynamic sector repairing s Drive parameter tracking s Drive failure alert features s Interim data recovery s Automatic data recovery s Hot-pluggable drives (Compaq ProLiant Storage System, Compaq ProLiant Server, Rack-Mountable Compaq ProLiant Storage System or Rack-Mountable Compaq ProLiant Server) The following items are not SMART-2DH features, but are functions possibly supported by the operating system: s Controller duplexing s Software based drive mirroring Writer: Pamela King Project: SMART-2DH Array Controller Reference Guide Comments: 295469-002 File Name: K-APPD.DOC Last Saved On: 2/27/98 12:06 PM COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED

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D-20
Understanding Drive Arrays
Writer: Pamela King
Project: SMART-2DH Array Controller Reference Guide
Comments: 295469-002
File Name: K-APPD.DOC
Last Saved On: 2/27/98 12:06 PM
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Disk Drive Upgrades
Additional storage space may be obtained with the same number of physical
drives
in a fault-tolerant configuration
by replacing these drives with others of
higher capacity. By replacing the drives one at a time, the data on the new
drive is recreated from redundant information on the remaining drives. After
each new drive has been rebuilt, the next can be replaced. After all drives
have been replaced and rebuilt, the additional capacity on each drive can be
utilized by adding a new logical drive. Array Configuration Utility will
automatically recognize the unused space and guide you through the
procedures to make use of it.
Other Fault Management Features
The SMART-2DH Controller and the network operating system offer several
other fault management and data reliability features. These features include:
■
Auto reliability monitoring
■
Dynamic sector repairing
■
Drive parameter tracking
■
Drive failure alert features
■
Interim data recovery
■
Automatic data recovery
■
Hot-pluggable drives (Compaq ProLiant Storage System, Compaq
ProLiant Server, Rack-Mountable Compaq ProLiant Storage System or
Rack-Mountable Compaq ProLiant Server)
The following items are not SMART-2DH features, but are functions possibly
supported by the operating system:
■
Controller duplexing
■
Software based drive mirroring