Monitoring of LTO Tape Drives via FC Switch
I was trying to monitor the throughput of individual LTO tape drive but not getting any useful information from the tape library system. The only way to overcome this is to monitor it via the FC switch. In my case, it is a Brocade switch. Online SNMP MIBs for Brocade provides a very detailed description of the OIDs (swFCPortRxWords:1.3.6.1.4.1.1588.2.1.1.1.6.2.1.12 and swFCPortTxWords: 1.3.6.1.4.1.1588.2.1.1.1.6.2.1.11).
Due to the fact that the counter reset so frequent, I need to poll the FC switch every minute. Data is stored in RRDtool format.
Below shows two ways to visualise the LTO throughput. Line grpah shows individual drive throughput. Area/Stack graph shows the overall throughput of the backup:
Labels: RRDtool
posted by chihungchan at 9:59 PM
2 Comments:
Hey Chi Hung,
What are you planning to do with that data? Present to senior mgmt, etc?
It helps to identify the bottleneck when we superimpose the netbackup policy throughput
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