Administrator’s Command Line Guide
Table Of Contents
- Introduction
- Accessing Storage Clusters via iSCSI
- Accessing Storage Clusters via S3 Protocol
- Monitoring Storage Cluster
- Managing Storage Cluster Security
- Maximizing Storage Cluster Performance
Chapter 4. Monitoring Storage Cluster
4.2 Monitoring Metadata Servers
MDS servers are a critical component of any storage cluster, and monitoring the health and state of MDS
servers is a very critical task. To monitor MDS servers, use the vstorage -c <cluster_name> top command,
for example:
The command above shows detailed information about the stor1 cluster. The monitoring parameters for
MDS servers (highlighted in red) are explained in the table below:
Parameter Description
MDSID MDS server identifier (ID).
The letter “M” before ID, if present, means that the given server is the master
MDS server.
STATUS MDS server status.
%CTIME Total time the MDS server spent writing to the local journal.
COMMITS Local journal commit rate.
%CPU MDS server activity time.
MEM Amount of physical memory the MDS server uses.
44