ZCS Administrator's Guide 8.0.4
ZCS Administrator's Guide 8.0.4
Network Edition


Monitoring ZCS Servers > Monitoring Servers

Monitoring Servers
The ZCS server collects many performance-related statistics that can help you diagnose problems and load issues.
The Monitor>Advanced Statistics page includes advanced graphing options that lets you generate various charts based on statistical information for the CPU, IO, mailboxd, MTA queue, MySQL and other components.
To chart the graphics in Advanced Statistics, select one of these groups and then select from the list of specific counters for the type of information to display.
The information covers a wide array of data:
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cpu.csv: CPU utilization. This group contains counters to keep track of CPU usage (iowait, idle, system, user, time etc.). CPU information can be tracked both at the server level and the process level.
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df.csv: Captures disk usage. Disk utilization is tracked for each disk partition.
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fd.csv: file descriptor count. Keeps track of system file descriptor usage over time. This is primarily used to track down “out-of-file descriptor” errors.
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mailboxd.csv: ZCS server and JVM statistics. Mailboxd stores almost all of its statistics here. Interesting numbers to keep track of are heap_used, heap_free, imap_conn, soap_sessions, pop_conn, db_conn_count.
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mtaqueue.csv: Postfix queue. This measures the mail queue size in number of messages and the size in bytes.
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proc.csv: Process statistics for Zimbra processes. For example mailboxd/java, MySQL, OpenLDAP, etc.)
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soap.csv: SOAP request processing time.
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threads.csv: JVM thread counts. Counts the number of threads with a common name prefix.
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vm.csv: Linux VM statistics (from the vmstat command).
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io-x.csv and io.csv store data from the iostat(1) command (io-x.csv with iostat -x).
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