如果进行异步复制,将源中的数据写入其在目标上的副本时,会发生时间延迟。可以设置警告和错误警报以在即将发生复制延迟或复制延迟超过复制点目标 (replication point objective, RPO) 时通知管理员。这些警报提示管理员检查网络问题、应用程序问题以及使用分析来检查存储设备的运行状况。
创建或编辑复制操作时可以设置复制延迟警报。
要设置复制延迟警报,请执行以下操作:
host_source:shares New_Project replication> action
host_source:shares New_Project action (uncommitted)> get origin_pkg_id = target = replication-target pool = demo_pool enabled = true continuous = false include_snaps = true retain_user_snaps_on_target = false dedup = false include_clone_origin_as_data = false max_bandwidth = unlimited bytes_sent = 0 estimated_size = 0 estimated_time_left = 00:00:00 average_throughput = 0B/s use_ssl = true compression = on export_path = state = idle state_description = Idle (no update in progress) export_pending = false offline = false next_update = Sync now replica_lag = P1H30M replica_data_timestamp = Wed Feb 15 2016 12:12:05 GMT+0000 (UTC) last_sync = Wed Feb 15 2016 22:32:59 GMT+0000 (UTC) last_try = Wed Feb 15 2016 22:32:59 GMT+0000 (UTC) last_result = success recovery_point_objective = replica_lag_warning_alert = replica_lag_error_alert =
host_source:shares New_Project action (uncommitted)> set recovery_point_objective=50min recovery_point_objective = 50 minutes (uncommitted) host_source:shares New_Project action (uncommitted)> set replica_lag_warning_alert=50 replica_lag_warning = 50% (uncommitted) host_source:shares New_Project action (uncommitted)> set replica_lag_error_alert=180 replica_lag_error = 180% (uncommitted)
有关所有属性的说明,请参见复制操作属性。
host_source:shares New_Project action (uncommitted)> commit
host_source:shares New_Project action (uncommitted)> ls . . replica_lag = P1H30M replica_data_timestamp = Wed Feb 15 2016 12:12:05 GMT+0000 (UTC) last_sync = Wed Feb 15 2016 22:32:59 GMT+0000 (UTC) last_try = Wed Feb 15 2016 22:32:59 GMT+0000 (UTC) last_result = success recovery_point_objective = 50 minutes replica_lag_warning_alert = 50% replica_lag_error_alert = 180%