The first device that you reach (possibly a device in a 7133) represents SSA-address
count 0. Continue to follow the SSA loop from device to device, increasing the
SSA-address count by 1 for each device, until you reach the device that is indicated in
the SRN.
Note: Refer to the diagrams in “SSA Subsystem Configurations” on page 47 to ensure
that you follow the SSA loop and count the devices in the correct sequence.
Controller Card Microcode Maintenance
When a new level of controller card microcode becomes available, that microcode is
supplied on media that are appropriate for your using system. The media contain both
the new level of microcode and the existing level. The current level is supplied so that if
any problems occur with the new level, you can return to the existing working level.
A README file that contains download instructions is supplied with the microcode.
The download service aid that is supplied with the new level of microcode provides two
types of download function:
v
Temporary. This type of download function downloads the new microcode into RAM
and activates it. When the controller card is next powered off, then powered on, the
new microcode is lost, and the original microcode is used.
v
Permanent. This type of download function downloads the microcode into RAM and
EEPROM.
See also Controller Card Microcode Maintenance in the “Additional Information”
appendix (in this book) for your using system.
To update the 7133 vital product data (VPD) that is held in the using system, you might
need to reconfigure the 7133 to the using system. For more details, see Configuring a
7133 to the Using System in the “Additional Information” appendix (in this book) for your
using system.
Disk Drive Microcode Maintenance
When a new level of disk drive microcode becomes available, that microcode is
supplied on media that are appropriate for your using system. For instructions about
how to download the microcode, see Downloading Disk Drive Microcode in the
“Additional Information” appendix (in this book) for your using system.
60
7133 Models D40 and T40 Service Guide
Summary of Contents for 7133 D40
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