emc_vnx_file_stats - Plugin to monitor Basic, NFSv3 and NFSv4 statistics of EMC VNX 5300 Unified Storage system's Datamovers
Evgeny Beysembaev <firstname.lastname@example.org>
#%# family=auto #%# capabilities=autoconf suggest
The plugin monitors basic statistics of EMC Unified Storage system Datamovers and NFS statistics of EMC VNX5300 Unified Storage system. Probably it can also be compatible with other Isilon or Celerra systems. It uses SSH to connect to Control Stations, then remotely executes '/nas/sbin/server_stats' and fetches and parses data from it. It supports gathering data both from active/active and active/passive Datamover configurations, ignoring offline or standby Datamovers. If all Datamovers are offline or absent, the plugin returns error. This plugin also automatically chooses Primary Control Station from the list by calling '/nasmcd/sbin/getreason' and '/nasmcd/sbin/t2slot'. At the moment data is gathered from the following statistics sources: * nfs.v3.op - Tons of timings about NFSv3 RPC calls * nfs.v4.op - Tons of timings about NFSv4 RPC calls * nfs.client - Here new Client addresses are rescanned and added automatically. * basic-std Statistics Group - Basic Statistics of Datamovers (eg. CPU, Memory etc.) It's quite easy to comment out unneeded data to make graphs less overloaded or to add new statistics sources. The plugin has been tested in the following Operating Environment (OE): File Version T126.96.36.199 Block Revision 05.32.000.5.215
These are Basic Datamover Graphs. Graph category CPU: EMC VNX 5300 Datamover CPU Util % Graph category Network: EMC VNX 5300 Datamover Network bytes over all interfaces EMC VNX 5300 Datamover Storage bytes over all interfaces Graph category Memory: EMC VNX 5300 Datamover Memory EMC VNX 5300 File Buffer Cache EMC VNX 5300 FileResolve These are NFS (v3,v4) Graphs. Graph category NFS: EMC VNX 5300 NFSv3 Calls per second EMC VNX 5300 NFSv3 uSeconds per call EMC VNX 5300 NFSv3 Op % EMC VNX 5300 NFSv4 Calls per second EMC VNX 5300 NFSv4 uSeconds per call EMC VNX 5300 NFSv4 Op % EMC VNX 5300 NFS Client Ops/s EMC VNX 5300 NFS Client B/s EMC VNX 5300 NFS Client Avg uSec/call EMC VNX 5300 Std NFS Ops/s EMC VNX 5300 Std NFS B/s EMC VNX 5300 Std NFS Average Size Bytes EMC VNX 5300 Std NFS Active Threads
The plugin has been written for being compatible with EMC VNX5300 Storage system, as this is the only EMC storage which i have. By the way, i am pretty sure it can also work with other VNX1 storages, like VNX5100 and VNX5500. About VNX2 series, i don't know whether the plugin will be able to work with them. Maybe it would need some corrections in command-line backend. The same situation is with other EMC systems, so i encourage you to try and fix the plugin.
The plugin uses SSH to connect to Control Stations. It's possible to use 'nasadmin' user, but it would be better if you create read-only global user by Unisphere Client. The user should have only Operator role. I created "operator" user but due to the fact that Control Stations already had one internal "operator" user, the new one was called "operator1". So be careful. After that, copy .bash_profile from /home/nasadmin to a newly created /home/operator1 On munin-node side choose a user which will be used to connect through SSH. Generally user "munin" is ok. Then, execute "sudo su munin -s /bin/bash", "ssh-keygen" and "ssh-copy-id" to both Control Stations with newly created user. Make a link from /usr/share/munin/plugins/emc_vnx_file_stats to /etc/munin/plugins/. If you want to get NFS statistics, name the link as "emc_vnx_file_nfs_stats_<NAME>", otherwise to get Basic Datamover statistics you have to name it "emc_vnx_file_basicdm_stats_<NAME>", where <NAME> is any arbitrary name of your storage system. The plugin will return <NAME> in its answer as "host_name" field. For example, assume your storage system is called "VNX5300". Make a configuration file at /etc/munin/plugin-conf.d/emc_vnx_file_stats_VNX5300 [emc_vnx_file_*] user munin env.username operator1 env.cs_addr 192.168.1.1 192.168.1.2 env.nas_servers server_2 server_3 Where: user - SSH Client local user env.username - Remote user with Operator role env.cs_addr - Control Stations addresses env.nas_servers - This is the default value and can be omitted
08.11.2016 - First Release 17.11.2016 - NFSv4 support, Memory section 16.12.2016 - Merged "NFS" and "Datamover Stats" plugins 26.12.2016 - Compatibility with Munin coding style