Chapter 6. Monitoring specific functions

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click Cluster and then click Monitors.

3. The Monitors overview page displays information about the overall monitor status as well as tables of in Quorum and Not in quorum Monitor nodes:

   

4. To see the number of open sessions, hover the cursor over the blue dotted trail:

   

5. To see performance counters for any monitor, click its host name:

   

6. View the performance counters:

   

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click Cluster and then click Hosts.

3. To view the list of hosts, click the Hosts List tab:

   

4. To view the Performance Details of a host, in the Host tab, click its row and select the time range from the Grafana Time Picker drop-down menu:

   

5. To view the performance counters for a specific service on a host, click the service:

   

6. View the performance counters:

   

7. To view performance data for all the hosts:

   1. Click the Overall Performance tab towards the top left of the page:

      

   2. Select the time range from the Grafana Time Picker drop-down:

      

   3. View the Overall Performance page:

      

Procedure

1. Log in to the Dashboard.
2. On the navigation bar, click Cluster and then click OSDs.

3. To view the list of OSDs, click the OSDs List tab:

   

4. To view the attributes of an OSD, on the OSDS List tab, click its row:

   

5. To view the metadata of the OSD, in the OSDs tab, click its row and click the Metadata tab:

   

6. To view the performance counter of the OSD, in the OSDs tab, click its row and click the Performance counter tab:

   

7. To view the histogram of the OSD, in the OSDs tab, click its row and click the Histogram tab:

   

8. To view the performance details of the OSD:

   1. In the OSDs tab, click its row, click the Performance Details tab:

      

   2. Select the time range from the Grafana Time Picker drop-down menu:

      

   3. View the performance details of the OSD:

      

9. To view the overall performance of all the OSDs:

   1. Click the Overall Performance tab towards the top left of the page:

      

   2. Select the time range from the Grafana Time Picker drop-down:

      

10. View the Overall Performance page:

    

Procedure

1. Log in to the Dashboard.

2. On the navigation bar, click Pools:

   

3. View the pools list:

   

4. Mouse over a usage bar graph to view the actual used and free space:

   

5. To view more information about a pool, select it by clicking on its row:

   

6. View the details of the pool. To view performance details and configuration data for the pool, click on the associated tabs.

   

7. To view performance data for all the pools, click the Overall Performance tab towards the top left of the page:

   

8. View the Overall Performance page:

   

Procedure

1. Log in to the dashboard.

2. On the navigation bar, click Filesystems.

   

3. In the example below, you can see the cephfs file system.

   

4. To view details for the file system, click the row for cephfs.

   

5. On the Details tab, you can see metadata servers and their rank plus any standby daemons, at 1, pools and their usage, at 2, and performance counters at 3.

   

6. To view the list of clients which have mounted the file system, click the Clients tab.

   

7. In the example below, you can see the jb-ceph4-client host has the cephfs file system opened.

   

8. To view the performance of the file system, click the Performance Details tab.

   

9. In the example below, you can see the read and write operations, at 1, client requests, at 2, and you can change the time range at 3.

   

Procedure

1. Log in to the Dashboard.

2. On the navigation bar, click Block:

   

3. Select Images from the drop-down:

   

4. Select the Overall Performance tab:

   

5. Select the time range from the Grafana Time Picker drop-down:

   

6. View the Overall Performance page: