Dell PowerProtect DD Management Center (DDMC) 7.9 Installation and Administration Guide

Checking the System Details lightbox

The System Details lightbox provides detailed operating information about specific components of a Data Domain or PowerProtect system.

There is a System Details control on each of the following pages:

• Health > Status
• Capacity > Systems
• Capacity > MTrees
• Replication > Overview
• Infrastructure > Systems

To activate the control, you must first select a DD system from the table.

There are five tabs for non-HA systems, and six tabs for HA systems.

The Overview tab shows the operational status of various system components (such as the file system and protocols) using LED status indicators. Also provided are summaries of file system usage and capacity, and replication status and statistics for inbound and outbound replications.

The Capacity tab shows different tier data if applicable. If the configuration is a single-tier system, there is only one column. If the configuration is a Cloud or Extended Retention tier system, then there are Active tier, Cloud or Retention tier respectively, and total columns. This tab contains a Capacity usage chart and a table with MTrees on that system.

The Network tab shows total bytes, backup and restore bytes, and replication inbound and outbound bytes. There is a network byte chart as well.

The Charts tab lets you produce charts for selected time intervals. System Charts tab has all system charts. For cloud enabled systems, charts are broken into two sections - Historical, which contains the same charts as before, and a new Current charts section, which contains two pie charts that show the current distribution of data on the systems and cloud providers. These charts are:

• Protection Distribution - a chart showing how much data resides on-premises versus on different cloud providers.
• Licensed Capacity Usage - Space that is used on each provider, space available, and total capacity licensed for all the providers combined.

The Replication tab lists the counts of different automatic/on-demand replication pairs, both inbound and outbound, with ones that have errors or warnings. There are also inbound and outbound charts.

The HA tab, for an HA system, contains the HA system health diagram which marks alerts, if any, in each component of the HA system. Selecting different components in the diagram can filter the alerts that are viewed in the table.

Resource charts

• CPU utilization shows the CPU utilization percentage for the system by date and also shows when cleaning is being performed.
• Network throughput shows whether a system is experiencing bandwidth-related bottlenecks. You can determine how much network bandwidth is being used by systems sharing the same subnet to see if any are using more than expected or enabled by IT departments.

File system charts

• Streams counts shows the numbers of each type of stream that were open at the date and time that is indicated for each data point. It is not an aggregate (average, min, or max) of the stream count over the selected interval. It is best viewed at the lowest interval (hourly), so that hourly stream count throughout each day can be observed. At greater intervals (daily or weekly), only a single data point, which is taken at noon, is shown, which is not helpful in determining how many streams were open throughout the day or week. In summary, the hourly interval is the best choice for viewing this chart.
• Protocol processing shows the number of operations per second.
• Protocol throughput shows the following:
  • Data in is the amount of data that the DDOS file system can read from the kernel socket buffer.
  • Data out is the amount of data that the DDOS file system can write to the kernel socket buffer.
  • Wait Time per MiB in is the amount of time it takes for the DDOS file system to receive one mebibyte of data from a network client. A high value indicates that the client is sending data relatively slowly and any performance issues are likely to be related to the client or network. A low value indicates that data is arriving from a network client as fast or faster than it can be deduplicated and written to disk.
  • Wait Time per MiB out is the reverse metric, the amount of time that is taken to send a mebibyte of data from the DDOS file system to a network client. A low value indicates that data can be sent over the network as fast as it is being read from disk. A high value indicates that data is being read from disk faster than it can be accepted by the network and network client.

Replication charts

• Inbound characteristics shows the inbound counts for both automatic and on-demand replication pairs.
• Outbound characteristics shows the outbound counts for both automatic and on-demand replication pairs.
• Throughput shows throughput for both automatic and on-demand replication pairs.