Upgrade Guide

3
Types of Update Components
Types of Update Components
Within an update package, an individual update component is classified by how the update
component can be installed:
• Required or Deferrable: Required components must be installed as part of the update;
Deferrable components can be installed at a later time.
• Service Affecting or Service Optional: Service Affecting components can be installed
only when the Storage Center is temporarily taken out-of-service to perform the update;
Service Optional components can be installed either when the Storage Center is in
service or during a scheduled outage.
The following table shows which components affect service during installation.
** Only the following enclosure firmware allow Service Optional installation:
• Fibre Channel SBOD enclosures, Model EN-SB4X16
• Fibre Channel SBOD enclosures Model EN-SB2X16
• Fibre Channel SATA enclosures, Model EN-SA2X16
• SAS enclosures, Model EN-SASX2X12
All other enclosure firmware installation is Service Affecting.
Service Affecting Service Optional
Storage Center with
Single Controller
Storage Center Firmware Update

** Enclosure Firmware Update

Disk Firmware Update

Storage Center with
Clustered Controllers
Storage Center Firmware Update

** Enclosure Firmware Update

Disk Firmware Update
