Dell Force10 S4810P FTOS Command Line Reference Guide for the S4810 System FTO - Page 728
redundancy force-failover
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Usage Information Enabling this command keeps the failed RPM in the failed state. If there are two RPMs in the system, enabling this command prevents the failed RPM from becoming a working Standby RPM. If there is only one RPM in the system, the failed RPM does not recover and affects the system. redundancy force-failover Force the secondary RPM to become primary RPM or force an SFM (on an E-Series chassis only) to become the standby SFM. This command can also be used to upgrade the software on one RPM from the other when the other has been loaded with the upgraded software. C-Series, E-Series, S4810 Syntax Parameters Default Command Modes Command History Usage Information Example (rpm) redundancy force-failover {rpm | sfm [slot-number] } Enter the keyword rpm to force the secondary RPM to become the primary RPM. sfm slot-number Enter the keyword rpm to force the secondary RPM to become the primary RPM. EtherScale Only - Enter the keyword sfm followed by the SFM slot number. The range is 0 to 8. Not configured. EXEC Privilege Version 8.3.12.0 Version 8.1.1.0 Version 7.5.1.0 Version 7.6.1.0 Introduced on the S4810. Introduced on the E-Series ExaScale. Introduced on the C-Series. Introduced on the E-Series. Use this command to provide a hitless or warm upgrade. A hitless upgrade means that a software upgrade does not require a reboot of the line cards. A warm upgrade means that a software upgrade requires a reset of the line cards. A warm upgrade is possible for major releases and lower, while a hitless upgrade can only support patch releases. NOTE: On the C-Series, this command could affect traffic (even during hot-failover) because the switch fabric present on the RPM is taken down during the failover. FTOS#redundancy force-failover rpm Peer RPM's SW version is different but HA compatible. Failover can be done by warm or hitless upgrade. All linecards will be reset during warm upgrade. Specify hitless upgrade or warm upgrade [confirm hitless/ 728
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