Object Attribute Difference

The SAV compare feature also evaluates two snapshots to determine any differences in the value of an object attribute. If the same attribute does not match between the two snapshots, then it is marked as a “difference” and displayed in the comparison results. For attribute values with numerical differences, the comparison results display both the numerical difference and percentage of change.

For example, if you scan a server in SAV and the server shows that it has 2 gigabytes of RAM, and then at a later point in time, one gigabyte of RAM is removed from the server, then when you perform a comparison, the results show the server’s total memory as having a difference of one gigabyte. The results also indicate that the target (the earlier saved scan results) had a value of two gigabytes, and the source (currently loaded scan results) has a value of one gigabyte.

The following table lists all object attributes evaluated during a scan results comparison.

Object Attributes Checked for Difference in Snapshot Comparison

Object Category

Object Attributes Compared

Database

Existence, version

Database file

Existence, size (in bytes)

Disk (applies to servers, SAN arrays, and NAS filers)

Existence, firmware version, status

Compliance Policy

Existence, compliance status (compliant, partial, noncompliant, scan failure, scan needed, scanning)

Fibre Channel Adapter

Driver version

Fibre Channel Port (applies to servers, SAN arrays, and NAS filers)

Connected port, existence, fabric, name, zone

File System

Existence, mount options, mount point, significant change in % free space, size (bytes), type

LUN Volume

Capacity (bytes), existence, LUN ID, name

NAS Filer

Existence, hostname, name, operating system version

NFS Export

Existence, export path, significant change in % of free space, size (bytes)

Network Device

ACLs, existence, firmware version, name, operating system, server pools

Network Interface

Broadcast address, connected switch, connected switch port, connected VLAN, duplex, existence, IP address, MAC address, neg. duplex, neg. speed, subnet mask

Network Port

Duplex, existence, MAC address, neg. duplex, neg. speed, speed, VLAN

Process Family

Max CPU utilization, significant change in # of connections, significant change in # of open files

SAN Array

Existence, firmware version, name

SAN Switch

Existence, firmware version, name

Server

Boot time, codeset, DNS server, existence, kernel, name, operating system

Tablespace

Existence, size (in bytes)

VLAN

Existence