HP Integrity NonStop X NS7, Руководство по планированию

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4 Managing NS7 System Resources
This chapter provides guidelines for managing the system resources.
Planning Kernel Managed Swap (KMS) Space
HPE uses Kernel Managed Swap (KMS) space to manage virtual memory via swap files controlled
by the HPE NonStop operating system. Each CPU has at least one KMS file that provides the
swap space needed by processes.
Proper configuration and management of KMS space is critical to the operation of the system.
After a new system is loaded, HPE recommends initially allocating swap space for each NS7
CPU that equals twice the physical memory of the CPU (for example, 2 x 64GB) minus the
memory configured for DP2 cache. This example shows allocating swap space for a 4 CPU
system with 64GB NonStop X server blades and 128GB server blades.
Total allocation for 4 CPU
system
SWAP File Allocation Minus DP2 Cache 2x CPU Memory CPU
448GB 112GB 16GB 128GB 64GB
896GB 224GB 32GB 256GB 128GB
TIP: If the new system replaces a previous system with a similar number of CPUs and
application processes, you can use the SWAP file usage on that system to help determine the
SWAP file space for the new system.
You use the NonStop Kernel utility program, NSKCOM to monitor, configure, and manage KMS
files. The information you obtain from NSKCOM and MEASURE is then used to adjust the
swap-file configuration.
More information
Measure Reference Manual
Kernel Managed Swap Facility (KMSF) Manual
NonStop X Hardware System Installation Manual
(service providers only)
Default Naming Conventions for NS7 Systems
With a few exceptions, default naming conventions are not necessary for NS7 system resources.
However, default naming conventions have been preconfigured for the following resources to
simplify initial configuration files and automatic generation of these resources.
Example Naming Convention Type of Object
NCLIM001 NCLIM
nnn
IP CLuster I/O Module (CLIM)
OCLIM003 OCLIM
nnn
Telco CLIM
SCLIM002 SCLIM
nnn
Storage CLIM
$SAS20 $SAS
number
SAS disk volume
$ESS20 $ESS
number
ESS disk volume
$TAPE01 $TAPE
number
Tape drive
$ZTCP0 $ZTCP
number
Maintenance CIPSAM process
ZTCP0 ZTCP
number
Maintenance provider
Planning Kernel Managed Swap (KMS) Space 59