AS/400 Storage

85 pts.
Tags:
AS/400 administration
AS/400 storage
How to ascertain which storage area the system is using to load the OS(Storage Area A / Storage Area B)?

ASKED: September 22, 2009  8:44 AM
UPDATED: September 22, 2009  6:55 PM

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If your system is offsite or you’re working remotely, just type DSPPTF. The first value (##MACH#A or ##MACH#B) indicates the copy of Licensed Internal Code that the system is currently
operating from.

______________________________

Look at your display panel on the server. It will show either A or B. That will tell you what side you’re running from.

Here’s some IBM info on this topic.

The system maintains two copies of all Licensed Internal Code on the system. One copy is considered the permanent copy and is stored on system storage area A. The other copy is considered the temporary copy and is stored on system storage area B. When the system is running, it uses the copy that was selected before the last IPL (initial program load).
System storage areas A and B

A B in the Data display on the front panel of the system unit indicates that the next system IPL will be made from the B or temporary storage area. The B storage area contains any Licensed Internal Code fixes that have been temporarily or permanently applied. Temporarily applied Licensed Internal Code fixes can be applied permanently (copied to the A storage area) or be permanently removed.

For the system to use the latest Licensed Internal Code fixes that are temporarily applied, you must be using the B storage area. The B storage area is what you normally use. Select the A storage area if the IPL to the B storage area fails because of a temporarily applied Licensed Internal Code fix.

<a href=”http://publib.boulder.ibm.com/iseries/v5r1/ic2924/index.htm?info/rzal2/rzal2storage.htm”>http://publib.boulder.ibm.com/iseries/v5r1/ic2924/index.htm?info/rzal2/rzal2storage.htm</a>

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  • Lovemyi
    If you do not have a control panel to see which side the IPL should use, you can look on the green screen at GO PTF and option 5 to display PTF Status. The top will show the IPL side that is currently being used. Product ID . . . . . . . . . . . . . : 5722999 IPL source . . . . . . . . . . . . . : ##MACH#B (This will either be ##MACH#B or ##MACH#A for the side) Release of base option . . . . . . . : V5R4M0 L00 Hope this helps Lovemyi
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