Host properties

The console displays both static and dynamic host properties in a separate window. You can have up to four Host Properties windows open simultaneously to compare and monitor hosts.

Some of the most useful dynamic host properties are also displayed in chart form on the Charts tab.

Host properties and descriptions are listed below. Note the different host attributes associated with a property type:

  • Built-in: The host property name and definition are preconfigured and built-in to EGO. Names and definitions cannot be changed.

  • Reserved: The property name is built-in to EGO, and is reserved. A reserved host attribute must be configured explicitly using this name. Definitions are configurable.

  • External: Names and definitions are completely configurable. They can be redefined for other purposes. Those external attributes listed below are out-of-box host names and definitions; if the cluster administrator has reconfigured them, they may not appear on the Host Properties page.

Property

Description

Attribute type

Host Name

Name of the host.

Built-in

Status

Current state of the host: OK, Unavailable, or Closed.

Built-in

Type (Host Type)

Type of host you have. For example, LINUX86.

Built-in

CPUs (Number of CPUs)

Number of ncpus you have specified for your host.

Built-in

CPU Util

Current CPU utilization of your host in %.

Built-in

Mem (Available Memory)

Estimate of the real memory currently available to user processes. This represents the approximate size of the largest process that could be started on a host without causing the host to start paging.

Built-in

Swap (Available Swap)

Currently available virtual memory (swap space) in MB. This represents the largest process that can be started on the host (with paging).

Built-in

Pg (Paging Rate)

Virtual memory paging rate in pages per second. This index is closely tied to the amount of available memory and the total size of the processes running on a host; if there is not enough memory to satisfy all processes, the paging rate is high.

Built-in

I/O (Disk I/O Rate)

I/O throughput to disks attached directly to this host, in KB per second. This rate does not include I/O to disks that are mounted from other hosts.

Built-in

Total Slots (Total Number of Slots)

Total number of slots for this host across ALL resource groups.

Built-in

Free Slots (Number of Free Slots)

Current number of available slots for this host across ALL resource groups.

Built-in

nprocs

Number of physical processors (if ncpus is defined as procs, then ncpus=nprocs) .

Built-in

ncores

Number of cores per processor (if ncpus is defined as cores, then ncpus=nprocs x ncores).

Built-in

nthreads

Number of threads per core (if ncpus is defined as threads, then ncpus=nprocs x ncores x nthreads).

Built-in

cit

Amount of time in minutes that a CPU has been idle; configurable in elim.sa.

External

scvg

Resource tag identifying scavenge-ready hosts; configurable external attribute.

External

uit_t

User idle time threshold, in minutes; configurable external attribute.

External

cu_t

CPU utilization threshold, as a percentage; configurable external attribute.

External

cit_t

CPU idle time threshold, in minutes; configurable external attribute.

External

scvgf

Scavenging flag (either on or off); configurable external attribute.

External

agtctrl

When host scavenging is enabled and the scavenging agent is controlling this host, value is on.

External

15s Load (15-Second Load)

Load this host carries, averaged over the last 15 seconds. The load is the average number of processes using the CPU during a given time interval.

Built-in

15m Load (15-Minute Load)

Load this host carries, averaged over the last 15 minutes. The load is the average number of processes using the CPU during a given time interval.

Built-in

1m Load (1-Minute Load)

Load this host carries, averaged over the last minute. The load is the average number of processes using the CPU during a given time interval.

Built-in

Model (Host Model)

Model of your host. For example, Intel_EM64T.

Built-in

Process Priority

OS process priority of cluster workloads (normal or lowest).

Built-in

Host Status Reason

Reason for the current host status, if applicable.

Built-in

CPU Factor

Speed of the host’s CPU relative to other hosts in the cluster. If one processor is twice the speed of another, its CPU factor should be twice as large. The CPU factors are defined by the administrator. For multiprocessor hosts, the CPU factor is the speed of a single processor; the system automatically scales the host CPU load to account for additional processors.

Built-in

Max Mem

Maximum RAM available.

Built-in

Max Swap

Maximum swap space on your host.

Built-in

Temp (Available Temp)

Space available in MB on the file system that contains the temporary directory.

Built-in

Max Temp

Maximum space in /tmp (Linux/UNIX) or OS default temp directory (Windows).

Built-in

Disks

Number of local disks on your host.

Built-in

It (Idle Time)

Amount of time in minutes that a host has been idle. On a Linux/UNIX host, it is the amount of time since the keyboard has been touched on all logged in sessions. On a Windows host, it is the amount of time a screen saver has been active.

Built-in

Users (Login Users)

Number of current users logged in to the system.

Built-in

Resource Attr

Resource attributes assigned to this host. For example, "mg" indicates the host is a management host; "scvg" indicates the host is scavenge-ready.

Built-in

CPU Speed

Speed of each individual CPU in MHz.

Built-in

Band Width

Maximum bandwidth requirement in Mbps.

Built-in