Operations Guides

Networking Operations

Home

Networking Operations

Failure to Complete StepDescription of Impact to FailoverRecovery StepsSpecial Instructions or Warnings
Rename Source SC (SmartConnect) zone names & aliases

Failover failed during networking step.  

Auto Rollback of networking will be applied to place SmartConnect Zone names and aliases back on the source cluster.

Source and target clusters result in same initial state as before failover and file system will be read/write on the source with SmartConnect Zones return to original configuration

  1. Use the info link in the job details tree to determine the reason for failure. (At this point retrying access failover is likely to fail again.  you are now switching to manual failover use this table as a guide on the order of the steps that must be run. See table here of steps
  2. You will need to know the steps for these procedures (consult EMC documentation on these steps)
  3. Restart failover but only select SyncIQ failover job type since Access zone failover will attempt the networking failover again and is likely to fail again.  Select the policies that are required to failover.
  4. Start failover with policies selected and review the table for manual step order.
This step is not run during uncontrolled failover.
Modify Source SPNs

SPN operation failure does not abort failover but are logged in the failover log

Failover continues.

  1. Post failover, open the failover log, and look for instructions listing which SPNs need to be fixed.
  2. Manually create/delete SPNs on the source cluster.
  3. Use ADSIedit tool and administrator access on the domain to edit source cluster machine account and remove SPN entries (short and long) for each SmartConnect zone that failed over)
SPN operations on the source are proxied through the target cluster ISI commands during failover operations, so source cluster availability does not affect Eyeglasses ability to fix SPN during failover to target
Rename target SC (SmartConnect) zone names & aliases

Failover failed during networking step.

Rollback will be applied. 

Source and target clusters result in same initial state as before failover with SmartConnect zones reverting to original configuration.

  1. Use the info link in the job details tree to determine the reason for failure. (At this point retrying access failover is likely to fail again.  you are now switching to manual failover use this table (in the Eyeglass Failover Design Guide) as a guide on the order of the steps that must be run:  See table here of steps.  
  2. You will need to know the steps for these procedures (consult EMC documentation on these steps)
  3. Restart failover but only select SyncIQ failover job type since Access zone failover will attempt the networking failover again and is likely to fail again.  Select the policies that are required to failover.
  4. Start failover with policies selected and review the table for manual step order.
 
Modify Target SPNs

SPN operation failure does not abort failover.

Failover continues.

  1. Post failover, open the failover log, and look for instructions listing which SPNs need to be fixed.
  2. Manually create/delete SPNs on the source cluster.
  3. Use ADSIedit tool and administrator access on the domain to edit source cluster machine account and add SPN entries (short and long) for each SmartConnect zone that failed over)
 

 

Copyright Superna LLC