Firmware - Dell PS4000 Configuration Manual

Figure 2 Fully Connected Controller Failover
2.3.4

Firmware

Each EqualLogic PS Series array runs a core operating system in firmware that provides all of the PS
Series features and functionality. The firmware version is defined using a version number and will be
updated from time to time as new features are added or for general maintenance improvements.
The firmware version number takes the following form: "X.Y.Z":

"X" is used to identify the "major" release number. This changes when there are very significant
changes in the features and functionality.

"Y" is the "minor" release number. This changes as new minor features or improvements in
existing features are made for a given major release.

"Z" denotes maintenance releases. This changes whenever a maintenance release level is
released to resolve any identified technical or usability issues.
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