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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.
The disk array controller does not save the configuration information within it. Instead, it records and saves the configuration information in HDDs.
Check
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.
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.
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