Recovering from a link failure between auxiliary-near sites
To recover from a link failure between auxiliary-near sites, check the event log
for a 1940 error and run the associated directed maintenance procedure (DMP).
Table 1
describes orchestrator behavior if an auxiliary-near site link fails.
| Use case | Automatic periodic source change | Periodic source migration (old to new) | State transition of 3-site consistency group (old to new) | 3-site consistency group status |
|---|---|---|---|---|
| Link failure between master site and auxiliary-near site (lease expiry on auxiliary-near site) | No | Master site to master site | 3site_consistent to 2site_periodic |
partner_offline |
| Link failure between master site and auxiliary-near site (lease expiry on auxiliary-near site) | Yes | Auxiliary-near site to master site | 3site_consistent to 2site_periodic
|
partner_offline |
| Link failure between master site and auxiliary-near site (lease expiry on master site) | Yes | Master site to auxiliary-near site | 3site_consistent to 2site_periodic |
partner_offline |
| Link failure between master site and auxiliary-near site (lease expiry on master site) | No | Auxiliary-near site to auxiliary-near site | 3site_consistent to 2site_periodic
|
partner_offline |
After you recover a link between near sites in a HyperSwap® system, the 3-site consistency group state changes to
3site_consistent.
Table 2
describes orchestrator behavior during an auxiliary-near site recovery.
| Use case | Automatic periodic source change | Periodic source migration (old to new) | State transition of 3-site consistency group (old to new) | 3-site consistency group status |
|---|---|---|---|---|
| Link recovery between master site and auxiliary-near site (lease expiry on auxiliary-near site) | No | Master site to master site | 2site_periodic to 3site_consistent (after synchronization,
consistency group is in the consistent_ synchronized state) |
Online |
| Link recovery between master site and auxiliary-near site (lease expiry on auxiliary-near site) | No | Master site to master site | 2site_periodic to 3site_consistent |
Online |
| Link recovery between master site and auxiliary-near site (lease expiry on master site) | No | Auxiliary-near site to auxiliary-near site | 2site_periodic to 3site_consistent |
Online |
| Link recovery between master site and auxiliary-near site (lease expiry on master site) | No | Auxiliary-near site to auxiliary-near site | 2site_periodic to 3site_consistent |
Online |