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November 27, 2012


The oslevel reported 4330-11, in other words AIX 4.3.3 Maintenance Level (ML) 11. That was the latest level for that AIX release, so they were patched up after all.

Not sure how they did it, though, as ML 11 came out in Feb 2003 - 3 years into their 13-year uptime, and I expect it would require a reboot after patching.


We have another similar system:
root@invisip1:/ > uptime
08:39AM up 3724 days, 16:10, 1 user, load average: 0.00, 0.01, 0.01
root@invisip1:/ > oslevel -r
Two yeas ago it was productive, now it only runs for the uptime counter, lots of errors in the errpt, I think this system would not boot again if it gets a shutdown.

One of our customer's (print office) p520 uptime was about 8 years. But the power down in a whole village made UPS turn it off as it couldn't work any more. I only switched one of the disks in rootvg after that.
PS: AIX 5.3.

Be careful with the information presented by the "uptime" command. If you shutdown xntpd and change the system date let's say 20 years back then reboot and after that change the system date to the present, the uptime command will report 20 years of uptime.


I would feel as a criminal if I had to reboot such a system :)

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