QUESTION:
My customer wants to upgrade his 560 to a 580H. He has 3 internal 1.37
GB drives in the 560 which he wants to move over to the 580H. After the
processor is swapped out of the 560, it now becomes the 580H (my assump-
tion). Will the NVRAM be the same? I assume that the ROS still be the
same so if I just power on the machine, the system will boot? Are my
assumptions correct? The document I was reading said that during the
boot phase 1, the ROS will check the NVRAM for a valid boot device, if
it is not found then it is supposed to use the default one on the ROS.
What process puts that info in the ROS in the first place?
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QUESTION:
Also, is it a box swap or just the processor swap from 560 to 580H?
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A: 560 to 58H upgrade questions.
1. Will the NVRAM be the same?
No, the NVRAM given to you on the new planar will be clear. The
customer will have to reset the date and set a customized bootlist,
if necessary.
2a. I assume the ROS still be the same...?
Actually, no, the ROS is part of the planar board and hence you will
get a new ROS chip with the upgraded machine. This new ROS chip
has all the functionality of the older one, plus additional features
(such as the ability to boot from a SCSI-2 Fast/Wide card).
2b. ...the system will still boot?
Yes, the system will still boot, but it may not be from the device
you desire. Since the NVRAM is cleared, the system will boot from
the default bootlist stored in ROS (and subsequently copied to
NVRAM).
3. Assumptions about ROS and NVRAM booting.
Yes, your assumptions are correct concerning the ROS during boot
time. It will check the NVRAM for a valid bootlist and attempt to
boot from that. If it does not find a valid bootlist, or the
bootlist contains invalid devices, then it will boot from the default
bootlist.
4. What process puts that info in the ROS?
The ROS (Read Only Storage) chip is built on a manufacturing line
and cannot be programmed in the field.
5. Is the upgrade a box swap or just processor swap?
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A: The upgrade from the 560 to the 58H is a complete chassis swap, not
just a planar/processor swap.
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QUESTION:
Since the ROS is programmed at the factory, what does it have in terms
of boot device (hdisk0?). Thanks
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A: The contents of the IPL ROS vary depending on the actual system unit.
What follows is the bootlist information in the ROS for the 58H.
Please note, that the position of the system unit key determines
which boot list will be used.
Service Mode Normal Mode
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diskette hdisk
cdrom cdrom
tape tape
hdisk fddi
fddi token-ring
token-ring integrated ethernet
integrated ethernet ethernet card
ethernet card loop back to hdisk
service menu
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This item was created from library item Q668578 CVCCR
Additional search words:
CVCCR HARDWARE IX OZNEW QUESTION REGARDS RISCSYSTEM RISCSYSU SEP94
SYS SYSTEM UNIT UPGRADING 560 580H
WWQA: ITEM: RTA000046775 ITEM: RTA000046775
Dated: 10/1996 Category: RISCSYSU
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