Sun Microsystems StorEdge, Troubleshooting Manual, Page: 94 / 168

76 Sun StorEdge SAN 4.0 Release Field Troubleshooting Guide • October 2002
Upgrading the SAN
This section contains topics about how to upgrade your SAN system to the latest
version.
Downloading Patches and Packages
Download all patches and packages to the host prior to beginning the upgrade
procedure.
Verifying Upgrade Compliance
Before starting the upgrade, insure that your system is stable and that all required
software and patches are accessible. Refer to
TABLE B-1
on page 84 for the
supportability matrix.
▼
To Upgrade the Software
If you have multiple hosts on your SAN, you can upgrade them simultaneously or
one at a time without affecting your SAN environment. Hosts that are not being
upgraded will not be affected during the upgrade. You can upgrade the host
software one host at a time or several hosts in parallel.
Caution – Your system will be unavailable to users and the SAN during the
upgrade procedure.
The order in which the SAN components should be upgraded is as follows:
1. Familiarize yourself with the required software components, versions and
patches. Refer to Appendix B for the supportability matrix.
2. Back up all data.