Filter
Top Products
Chapter 3 System Preparation
174 September 2002 HPSS Installation Guide
Release 4.5, Revision 2
Default = {
# Destination IP Address in Dot Notation
200.201.202.203 = {
NetMask = 255.255.255.0
RFC1323 = 1
SendSpace = 1048576
RecvSpace = 1MB
WriteSize = 2MB
TCPNoDelay = 0
}
# Default Destination – options to be used for destinations
# NOT explicitly specified.
Default = {
NetMask = 255.255.255.0
RFC1323 = 1
SendSpace = 256KB
RecvSpace = 128KB
WriteSize = 512KB
TCPNoDelay = 0
}
}
}
3.7.1.6 “Reserved for Future Use” Stanzas
The following stanza names (specifiers) are reserved for future implementation in HPSS and
should not be used by application developers.
• Pipe File
• Local File Path
• PFTP Daemon
• PSI
3.7.2 SP/x Switch Device Buffer Driver Buffer Pools
IBM SP/x systems provide the capability to tune the buffer pool allocation in the switch device
driver. Two variables can be changed: rpoolsize, which is the size of the buffer pool for incoming
data, and spoolsize which is the buffer pool size for outgoing data. If these values are too small,
then buffer overruns may occur.
The current values of these variables can be interrogated with the lsattr command (e.g., “lsattr -E -
l css0”), and can be changed with the chgcss command (e.g., “chgcss -l css0 -a spoolsize=<new
size> -a rpoolsize=<new size>”). Refer to the IBM Parallel System Support Programs for AIX
Administration Guide, GC23-3897-02 for more details.