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 80).
2. Select Rebuild/Device Management from the Main Menu.
102
PC Server 520 User's Handbook for PCI/Micro Channel
Summary of Contents for PC Server 520
Page 1: ...PC Server 520 User s Handbook for PCI Micro Channel IBM...
Page 86: ...Installation Checklist 70 PC Server 520 User s Handbook for PCI Micro Channel...
Page 146: ...Using the Mini Configuration Program 130 PC Server 520 User s Handbook for PCI Micro Channel...
Page 190: ...Using the SCSISelect Utility Program 174 PC Server 520 User s Handbook for PCI Micro Channel...
Page 385: ...Installing Additional Test Programs 207 CMD 3 Chapter 7 Solving Problems 369...
Page 438: ...IBM Part Number 78H6336 Printed in U S A May 1996 78H6336...