Drive Maintenance
Logical Drive States
The state of the logical drive is determined by the state of the
physical drives. Replacing a defunct drive with a good drive
changes the state of the logical drive from offline (OFL) to critical
(CRT) or good (OKY). When a defunct drive is replaced in a critical
logical drive, the data is rebuilt in the replaced drive, before the
state of the logical drive changes to OKY.
Status Meaning
OKY The drive is in a good functional state.
FRE The drive is not defined.
OFL The logical drive is offline and not accessible. This state
occurs if one or more physical drives in a non-redundant
logical drive (RAID level 0) is defunct. This state also
occurs when two or more physical drives in a redundant
logical drive (RAID levels 1 and 5) are defunct.
CRT A logical drive that is defined as RAID level 1 or 5
contains a defunct physical drive. A critical (CRT) logical
drive is accessible despite a physical drive failure.
Note: If the logical drive is critical, you must rebuild the defunct
drive.
Defining the State of a Drive
To define the state of a physical hard disk drive attached to the
ServeRAID adapter, you can use the Administration and Monitoring
program or the ServeRAID configuration program. By using the
Administration and Monitoring program from your active operating
system desktop, you do not have to restart the server. Refer to the
README file on the Device Driver/Administration and Monitoring
diskette for instructions for your operating system.
To define the state of a drive from the ServeRAID configuration
program:
1. Start the ServeRAID configuration program (see “Starting the
ServeRAID Configuration Program” on page 86).
2. Select Rebuild/Device Management from the Main Menu.
108 PC Server 520 User's Handbook for PCI/EISA
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