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November 4th, 2019 10:00
CRC errors on Isilon
Does anyone have a quick way of checking for potential CRC errors on an Isilon? Regular Linux commands don't seem to be working.
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Peter_Sero
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November 4th, 2019 11:00
Have a look at the MediaScan and the IntegrityScan jobs
https://community.emc.com/community/products/isilon/blog/2015/03/25/onefs-hardware-fault-tolerance
The MediaScan runs once a month by default, so you might just need to check recent results.
hth
Peter
craigschuer
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November 4th, 2019 11:00
So, there are no commands I can run to show CRC errors in real time?
Peter_Sero
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November 4th, 2019 11:00
CRC errors encountered should be logged to /var/log/messages, or probably some other file in /var/log
craigschuer
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November 7th, 2019 11:00
Still weird to me that there isn't an easy command to run that gives a nice print out of interface stats (to include CRC errors). One thing NetApp gets right with the ifstat command
Peter_Sero
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November 7th, 2019 15:00
Ah -- I was referring to CRC errors used by the OneFS file system to protect stored data.
Regular network transmission is also protect by some CRC,
check out the netstat command for this. From the netstat man page:
When netstat is invoked with -i (all interfaces) or -I interface,
it provides a table of cumulative statistics regarding packets
transferred, errors, and collisions