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At the command prompt, type:
lscfg -vl cd*
Examine the data that is returned.
If Partnumber is 04N2964 and ROS Level or ID is less than or equal to 1_04 (i.e., 1_02, 1_01, or 1_00), contact your local service representative. Tell your service representative that your system requires the CD-ROM firmware upgrade that is described in RETAIN TIP H1332.
If the data returned does not match the data described in the preceding paragraph, your system is not affected by this problem. This problem does not apply to your system.
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Configuring Devices
The number of devices for which AIX provides support may vary from system to system, depending on several important factors.
The following factors have an impact on the file systems that support the devices:
Configuration of more devices requires more information in the Object Database Manager (ODM) device-configuration database. It also may require more device special files. As a result, more space and i-nodes will be required of the file system.
Some devices require more space than others in the ODM device configuration database. The number of special files or i-nodes used will also vary from device to device. As a result, the amount of space and i-nodes required of the file system is dependent on the types of devices.
AIX includes both logical devices and physical devices in the ODM device-configuration database. Logical devices include volume groups, logical volumes, network interfaces, and so on. In some cases, the relationship between logical and physical devices can greatly affect the total number of devices supported.
For example, if you define a volume group with two logical volumes for each physical disk that is attached to a system, this results in four AIX devices for each disk. On the other hand, if you define a volume group with six logical volumes for each physical disk, there will be eight AIX devices for each disk. Therefore, only half as many disks could be attached.
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