Dell POWEREDGE M1000E - Manual (Page 76)

62 Fabric OS Troubleshooting and Diagnostics Guide
53-1001769-01
Considerations for downgrading firmware
5
Message Downgrade is not allowed because VF is enabled. Please run "lscfg --config" and "lscfg --delete"
commands to remove the non-default LS first, then run "fosconfig --disable vf" to disable VF before
proceeding.
Probable cause and recommended action
You cannot downgrade because Virtual Fabrics are enabled. Delete the logical switches, delete the
base switch, and disable Virtual Fabrics prior to downgrading the firmware.
Routing
This message refers to any route settings that need to be changed prior to downgrading the
switch’s firmware.
Message Downgrade is not allowed because IOD Delay value is configured for one or more domains. Please
use "ioddelayshow and ioddelayreset" to disable them before downgrading.
Probable cause and recommended action
If the switch is running v6.2.0 or later, and IOD Delay value is configured for one or more domains,
you cannot downgrade the switch to v6.1.0 or earlier.
Use the iodDelayReset command to reset the IOD delay to its default value.