Login
- Table of Contents
-
- H3C Switch Software Upgrade Guide-6W101
- 00-Preface
- 01-About software upgrade
- 02-Upgrade restrictions and guidelines
- 03-Upgrade workflow
- 04-Preparing for the upgrade
- 05-Upgrading the BootWare
- 06-Upgrading the startup software
- 07-Installing patches and features
- 08-Verifying the upgrade
- 09-Rolling back the running software images
- 10-Troubleshooting
- 11-Appendix A Downloading the upgrade file
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 02-Upgrade restrictions and guidelines | 42.22 KB |
Contents
Upgrade restrictions and guidelines
Hardware-related restrictions and guidelines
Software-related restrictions and guidelines
Upgrade restrictions and guidelines
Unless otherwise noted, this document uses a standalone device to describe the upgrade procedures.
Hardware-related restrictions and guidelines
· Before the upgrade, make sure the device is operating correctly, and make sure the LEDs of the power supply, fans, cards, and subcards are normal.
· During the upgrade, do not power off the device, and do not restart or remove swappable modules.
· If you store the startup software images in a hot swappable storage medium, do not remove the hot swappable storage medium during the startup process.
· Read the release notes to verify the software and hardware compatibility and hardware restrictions for the device, cards, and subcards.
Software-related restrictions and guidelines
· Before the upgrade:
¡ Back up the current software images, configuration files, and login passwords to prevent data loss if the storage medium is damaged.
¡ Make sure the device has sufficient storage space for the upgrade software images.
¡ Make sure the CPU usage of the device or a card is not high.
¡ Enable logging of the terminal to collect information.
¡ An upgrade requiring a device reboot will cause service interruption for the duration of the reboot.
¡ Use the release notes (software feature changes) to identify the differences between the new and old commands. Some functions might become unavailable due to command changes.
¡ Use the release notes to verify that the current software version can be upgraded to the target version.
· The upgrade of the BootWare might cause the software version to fail to be downgraded.
· The command output varies by device model.
· After the upgrade, do not delete the running software images.
· Before an upgrade operation is completed, no other upgrade operations can be performed. Upgrade operations include the install, issu, and boot-loader commands.
