System Management Release Notes
4.38 Multiple nPartitions on Cell-based Systems
4.38.3 Galaxy on ES40: Turning Off Fastpath
Permanent Restriction
When you implement Galaxy on an AlphaServer ES40 system, you must turn off
Fast Path on instance 1. Do this by setting the SYSGEN parameter FAST_PATH
to 0 on that instance.
If you do not turn off Fastpath on instance 1, I/O on instance 1 will hang when
instance 0 is rebooted. This hang will continue until the PCI bus is reset and
instance 1 rebooted. If there is shared SCSI or Fibre Channel, I/O will hang on
the sharing nodes and all paths to those devices will be disabled.
4.39 Corrupted Version 2 Format Database
V7.3-2
If you create eight or more volatile subkeys in a key tree and then reboot a
standalone system or a cluster, the OpenVMS Registry server can corrupt a
Version 2 format Registry database when the server starts up after the reboot.
To avoid this problem, do one of the following:
• Do not use volatile keys.
• Use a Version 1 format database.
Note that Advanced Server for OpenVMS and COM for OpenVMS do not create
volatile keys.
4.40 System Parameters
The following sections contain notes related to system parameters.
4.40.1 New System Parameters
V8.3
To learn about new system parameters, see the HP OpenVMS Version 8.3 New
Features and Documentation Overview.
4.40.2 Obsolete System Parameters
V8.3
The following system parameters are marked as obsolete in OpenVMS Version
8.3:
• SMP_CPUS
• SMP_CPUSH
• IO_PREFER_CPU
• IO_PREFER_CPUS
• NPAG_AGGRESSIVE
• NPAG_GENTLE
• SCH_CTLFLAGS
• TTY_SILOTIME
• BALSETCNT
• BREAKPOINTS
System Management Release Notes 4–31
