This section describes a switchover failure scenario. In this scenario, cluster-paris is the original primary cluster and cluster-newyork is the original secondary cluster.
A switchover switches the services from cluster-paris to cluster-newyork as follows:
phys-newyork-1# geopg switchover -f -m cluster-newyork tcpg |
While processing the geopg switchover command, the horctakeover command performs an SVOL-SSUS-takeover and returns a value of 5 for the Hitachi TrueCopy device group, devgroup1. As a result, the geopg switchover command returns with the following failure message:
Processing operation.... this may take a while .... "Switchover" failed for the following reason: Switchover failed for Truecopy DG devgroup1 |
After this failure message has been issued, the two clusters are in the following states:
cluster-paris: tcpg role: Secondary cluster-newyork: tcpg role: Secondary phys-newyork-1# pairdisplay -g devgroup1 -fc Group PairVol(L/R) (Port#,TID,LU),Seq#,LDEV#.P/S, Status,Fence,%, P-LDEV# M devgroup1 pair1(L) (CL1-C , 0, 20)12345 609..S-VOL SSWS ASYNC,100 1 - devgroup1 pair1(R) (CL1-A , 0, 1) 54321 1..P-VOL PSUS ASYNC,100 609 - |