Before removing a Switch Fabric (SF) module from an EX8216 switch, take the module offline.
The SF modules provide switching functionality for an EX8216 switch. Your switch can have eight SF modules. We recommend that you install all eight SF modules for normal switch operation.
To take the SF module offline:
user@switch> request chassis sib offline
slot slot-number where the slots are numbered from 0 through 7. See Slot Numbering for an EX8216 Switch.
user@switch# show chassis sibs slot-number When the state field in the command output shows that the SF module is offline, it is safe to remove and replace the SF module. See Removing an SF Module from an EX8216 Switch.