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1995-07-31
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SCO Host Resources MIB Support
SCO OpenServer Release 5 includes support for the Host Resources
MIB. This is an SNMP MIB, based on IETF RFC1514. This document
describes what information is provided by SCO OpenServer Release
5 for each MIB entry.
The Host Resources MIB defines a uniform set of objects useful
for the management of host computers. Host computers are
independent of the operating system, network services, or any
software applications.
The Host Resources MIB defines objects which are common across
many computer system architectures.
In addition, there are objects in the MIB-II which also provide
host management functionality. Implementation of the System and
Interfaces groups is mandatory for implementors of the Host
Resources MIB. Implementations of the Host Resources MIB makes
SCO systems manageable by SNMP management stations.
The following sections list the definitions included in the HR
MIB. The attributes are read-only unless noted otherwise.
The Host Resources System Group
hrSystemUptime - implemented
hrSystemDate - implemented - attribute is writeable
hrSystemInitialLoadDevice - implemented - attribute is writeable,
but changes are not stored. Subsequent access will reset the value
hrSystemInitialLoadParameters - implemented - attribute is writeable,
but changes are not stored. Subsequent access will reset the values
hrSystemNumUsers - implemented
hrSystemProcesses - implemented
hrSystemMaxProcesses - returns zero, as there is no fixed maximum
The Host Resources Storage Group
hrMemorySize - implemented
hrStorageTable -implemented - includes streams buffers, swap areas,
and filesystems
hrStorageEntry
hrStorageIndex - implemented
hrStorageType - implemented
hrStorageDescr - implemented
hrStorageAllocationUnits - implemented - filesystems and swap space
have fixed-size allocation units (1K blocks),
Streams buffers vary in size
hrStorageSize - implemented
hrStorageUsed - implemented
hrStorageAllocationFailures - implemented for streams buffers only.
Other storage types always return zero
The Host Resources Device Group
hrDeviceTable -implemented - includes hard disks, floppy disks, CD-ROMs,
tape drives, mice and other pointing devices, video displays,
printers, networks, and processors
hrDeviceEntry
hrDeviceIndex - implemented
hrDevicetype - implemented
hrDeviceDescr - implemented
hrDeviceID - returns 0.0 which means unknown
hrDeviceStatus - varies for device type. Returns unknown in most cases.
Returns running or down for processors. Returns down if a
printer is not enabled.
hrDeviceErrors - returns zero for all devices
hrProcessorTable - this is potentially sparse, an entry only
exists if the correspondent value of the hrDeviceType
object is 'hrDeviceProcessor'
hrProcessorTable
hrProcessorEntry
hrProcessorFrwID - returns 0.0 which means unknown
hrProcessorLoad - implemented - it is implemented in such a way
that it shows the average over the last 20 minutes, not
the last 1 minute. Correct this by having cron(C) run
sadc(ADM) every minute.
hrNetwork Table
hrNetworkEntry
hrNetworkIfIndex - implemented
hrPrinterTable
hrPrinterEntry
hrPrinterStatus - returns unknown
hrPrinterDetectedErrorState - If the printer is enabled and
accepting jobs, this attribute returns 0; otherwise
it returns 2 (bit 6 --off-line)
hrDiskStorageTable
hrDiskStorageEntry
hrDiskStorageAccess - implemented
hrDiskStorageMedia - implemented
hrDiskStorageRemovable - implemented
hrDiskStorageCapacity - implemented
hrPartitionTable
hrPartitionEntry
hrPartitionIndex - implemented
hrPartitionLabel - implemented
hrPartitionID - implemented
hrPartitionSize - implemented
hrPartitionFSIndex - implemented
The File System Table
hrFSTable
hrFSEntry
hrFSIndex - implemented
hrFSMountPoint -implemented
hrFSRemoteMountPoint - implemented
hrFSType -implemented
hrFSAccess -implemented
hrFSBootable - implemented
hrFSStorageIndex - implemented
hrFSLastFullBackupDate - returns unknown
hrFSLastPartialBackupDate - returns unknown
The Host Resources Running Software Group
This optional group is not implemented on SCO systems at this time.
The Host Resources Running Software Performance Group
This optional group is not implemented on SCO systems at this time.
The Host Resources Installed Software Group
This optional group is not implemented on SCO systems at this time.