Table of Contents
Advertisement
3. Attention:
For several seconds during microcode download, new data is written to
the disk drive EEPROM. If the power fails while that data is being written, the disk
drive microcode might become corrupted. The microcode cannot be corrected.
Normally, exchange the disk drive for a new one. If you need to try to save data,
you might be able to exchange the electronics card assembly of the disk drive. For
more details, see the Installation and Service Guide for the unit that contains the
disk drive.
To download microcode to one specific disk drive, select Download Microcode to
selected SSA Physical Disk Drives, and follow the instructions that are displayed.
You normally select this option when you do not want the microcode on the selected
disk drive to be at the latest available level.
4. If you have a new level of microcode to install, or if you have replaced a disk drive
and want to upgrade it to the present level, select Download Microcode to all SSA
Physical Disk Drives. This option ensures that all disk drives have the latest level
of microcode installed. It downloads microcode only to those disk drives whose level
of microcode is lower than that in the microcode directory or on the microcode
diskette.
Note: Different types of SSA disk drive might need different versions of the
microcode. Microcode download files are provided for each type of disk drive.
Where a system contains more than one type of SSA disk drive, this Service
Aid selects the correct microcode file for each of those types.
Chapter 17. SSA Service Aids
395
Advertisement
Table of Contents
