Availability Guide for Change Management

Making System Software and Hardware Changes
Online
Availability Guide for Change Management–125506
3-4
Adding and Upgrading Processor Memory Online
•
If you are upgrading processors 0 and 1 in the base cabinet, you must shut down the
system.
Adding and Upgrading Processor Memory Online
To add or upgrade processor memory online, you install either a memory board or a
processor board, depending on the type of NonStop system that you have. No software-
configuration changes are necessary.
Actual hardware installation steps are system-specific. Table 3-1 on page 3-8 lists the
manuals that describe the hardware installation procedures for adding and upgrading
memory online.
Considerations for Adding and Upgrading Processor Memory
The following list describes considerations and limitations you should be aware of when
adding or upgrading memory online:
•
All applications and system software running on the processor being changed must
be stopped.
•
You must shut down the processor for which memory is being changed.
•
You must shut down single-processor systems.
ServerNet Adapters
For the G01.00 release of the NonStop Kernel Operating System, I/O controllers are
replaced by ServerNet adapters. A ServerNet adapter provides the interface between the
ServerNEt SAN and a particular I/O bus, such as Ethernet or SCSI. A ServerNet
adapter conains a ServerNet bus interface (SBI) and one or more ServerNet addressable
controllers (SACS). Although ServerNet adapters can be customer-replaceable units
(CRUs), they can also be integrated into other types of CRUs. For example, the PMF
CRU includes a ServerNet adapter called the multifunction I/O board (MFIOB).
ServerNet Bus Interface (SBI)
The SBI is an application-specific integrated circuit (ASIC) on the ServerNet adapter
that provides the interface between the ServerNet SAN and a different industry-standard
bus, such as the Motorola 68030 bus, to which SACs are attached.
ServerNet Addressable Controllers (SACs)
SACs provide the controller functions for ServerNet adapters. These controllers provide
the interface to buses such as SCSI, which connect to perpheral devices.
Note. If adding or upgrading memory requires that you install a processor board, additional
considerations may apply. See “Adding and Upgrading Processors Online” on page 3-3 for
more information.