Okay, probably everyone is aware of the upcoming leap second time adjustment on June 30th, 0:00 UTC. I won't explain the story behind it although it's a very interesting topic, but others have done this already. A good starting point is the Wikipedia Leap Second article.
You might wonder: Okay, this is an anomaly that is confusing, but it's only one second, and modern IT systems should not really stumble over this, right? I was of the same opinion until recently, but the nearer the time comes the more IT vendors alert their customers of leap second related issues in their products, and you might be surprised to hear that very critical parts of your infrastructure can fail on June 30th if you do not patch them before!
I collected some links to the information posted by vendors that I rely on:
- VMware: KB2115818 (some Linux based appliances affected)
- HP: Advisory c04633149 about affected HP Storage Products
- EMC: https://community.emc.com/docs/DOC-45260 (Avamar, Celerra and VPLEX affected!)
- Cisco: http://www.cisco.com/web/about/doing_business/leap-second.html (Nexus 5000/5500 switches affected!)
- Check Point: Solution ID sk104560
If you rely on others or additional vendors then please search for the appropriate information yourself and/or contact the vendors and ask them for an action plan!
Be a good boy scout and be prepared!
This post first appeared on the VMware Front Experience Blog and was written by Andreas Peetz.
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