Administrator Guide
Table Of Contents
- Dell EMC Storage Systems Administrator Guide for the metro node appliance
- Contents
- Preface
- CLI Workspace and User Accounts
- Meta Volumes
- System Management
- Thin support in metro node
- Provisioning Storage
- Volume expansion
- Data migration
- About data migrations
- Migrating thin-capable storage
- About rebuilds
- One-time data migrations
- Batch migrations
- Prerequisites
- Creating a batch migration plan
- Checking a batch migration plan
- Modifying a batch migration file
- Starting a batch migration
- Pausing/resuming a batch migration (optional)
- Canceling a batch migration (optional)
- Monitoring a batch migration’s progress
- Viewing a batch migration’s status
- Committing a batch migration
- Cleaning a batch migration
- Removing batch migration records
- Configure the WAN Network
- Cluster Witness
- Consistency Groups
- Performance and Monitoring
- Metro node with active-passive storage arrays
Table 25. COM cluster I/O statistics (continued)
Statistic Description
com-cluster-io.send-ops
"type:reading, units: none, arguments: cluster-
id "
Number of I/O send operations to the cluster.
com-cluster-io.ops-active Current outstanding messages to a site.
com-cluster-io.bytes-active Current outstanding bytes to a site.
com-cluster-io.bytes-queued Current queued bytes to a site.
com-cluster-io.ops-queued Current queued messages to a site.
Table 26. COM I/O group statistics
Statistic Description
com-io-group.io-tm-avg Average latency on this channel group in last 5 seconds (updated every 5
seconds).
com-io-group.io-tm-cnt Messages sent on this channel group in last 5 seconds (updated every 5
seconds).
com-io-group.io-tm-max Maximum latency on this channel group in last 5 seconds (updated every 5
seconds).
com-io-group.io-tm-min Minimum latency on this channel group in last 5 seconds (updated every 5
seconds).
com-io-group.msg-b-in Always returns zero.
com-io-group.msg-b-out Total bytes sent on this channel group.
com-io-group.msg-cnt-in Always returns zero.
com-io-group.msg-cnt-out Total messages sent on this channel group.
Table 27. COM Path Statistics
Statistic Description
com-path.ping-count Number of ping packets sent. These are used to help calculate latency.
com-path.ping-late Number of ping packets that took too long.
com-path.ping-lost Number of ping packets lost.
com-path.posted-bytes Number of transmit bytes posted. (Bytes queued for transmission).
com-path.posted-send-ack Number of ACK buffers posted. (ACK buffers queued for transmission).
com-path.posted-send-ctl Number of control buffers posted. (Control buffers queued for
transmission).
com-path.rtt-avg Average round trip time for data to travel along the path.
com-path.rtt-max Max round trip time for data to travel along the path.
com-path.rtt-min Min round trip time for data to travel along the path.
com-path.send-bytes Number of data bytes send along this path. This includes data plus
UDCOM headers.
com-path.send-posted-bytes Number of transmit data buffers posted. Put another way, data queued for
transmission.
Table 28. COM Endpoint Statistics
Statistic Description
Performance and Monitoring 109