Administrator Guide

Metro node hardware and WAN ports.........................................................................................................................56
Metro over IP WAN port configuration rules............................................................................................................. 56
Port groups................................................................................................................................................................... 56
CLI contexts....................................................................................................................................................................... 56
port-groups context....................................................................................................................................................57
subnets context........................................................................................................................................................... 58
/connectivity/back-end/ ......................................................................................................................................... 59
/connectivity/front-end/ ........................................................................................................................................ 59
/connectivity/local-com/......................................................................................................................................... 60
Managing and Monitoring back-end network............................................................................................................ 60
Taking a Back-End IT Nexus with High Latency Out of Service..................................................................... 60
Marking a Back-End IT Nexus Isolated due to Unstable Performance.......................................................... 60
LDAP..................................................................................................................................................................................... 61
Directory structure...................................................................................................................................................... 61
Examples (ldapsearch command)............................................................................................................................ 61
Chapter 10: Cluster Witness........................................................................................................ 63
Chapter 11: Consistency Groups.................................................................................................. 64
About metro node consistency groups........................................................................................................................ 64
Synchronous consistency groups............................................................................................................................ 64
Properties of consistency groups..................................................................................................................................67
Visibility.......................................................................................................................................................................... 67
Storage-at-clusters.....................................................................................................................................................68
Detach-rule................................................................................................................................................................... 69
Auto-resume-at-loser................................................................................................................................................. 70
Virtual-volumes............................................................................................................................................................ 70
Manage consistency groups............................................................................................................................................ 71
Creating a consistency group....................................................................................................................................71
Adding volumes to a consistency group.................................................................................................................72
Removing volumes from a consistency group...................................................................................................... 73
Modifying consistency group properties................................................................................................................73
Example of modify: set visibility............................................................................................................................... 74
Example of modify: apply a detach rule................................................................................................................. 75
Deleting a consistency group....................................................................................................................................76
Displaying consistency group properties............................................................................................................... 76
Operating a consistency group....................................................................................................................................... 81
Resuming I/O at the losing cluster......................................................................................................................... 82
Setting the read-only attribute................................................................................................................................ 83
Chapter 12: Performance and Monitoring.................................................................................... 85
About performance...........................................................................................................................................................85
RPO and RTO...............................................................................................................................................................85
About performance monitoring......................................................................................................................................85
Performance monitoring using Unisphere for metro node................................................................................ 87
Performance monitoring using the VPlexcli.......................................................................................................... 88
Monitor performance using the CLI..............................................................................................................................88
About file rotation and timestamps.........................................................................................................................88
Procedure overview: create a monitor using the CLI......................................................................................... 88
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