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3. Maintenance
The disk array controller supports the following maintenance features
Configuration on Disk (COD) feature
Rebuild feature
Critical boot feature
3-1. Configuration on Disk (COD) Feature
The COD feature records the configuration information in HDDs. The feature prevents the
configuration information from being lost if the disk array controller is defected and
replaced. After the disk array controller is replaced, the COD feature can read the
configuration information from HDDs to operate the controller normally.
Check
The disk array controller does not save the configuration information within
it. Instead, it records and saves the configuration information in HDDs.
3-2. Rebuild Feature
When a HDD is defected, the rebuild feature recovers the data in the defected HDD. The
feature is available for redundant logical drives in the RAID1, RAID5, or RAID10 level.
See "Chapter 3 Features of Disk Array Controller" for details.
3-3. Critical Boot Feature
The disk array controller supports the critical boot feature. If an error occurs in the HDD
configuring the system drive during the boot of the server and the system drive does not
respond normally, the critical boot feature automatically excludes the defected HDD and
boots the server.
Notice
To enable the critical boot feature, [Halt On Error], a setting item of
FastBuild Utility, must be set to "Disable." See "Chapter 5 Creating Logical
Drive" for details.