Who says Linux isn’t stable?

I have been replacing some old hardware over the past few months, and recently noticed that we had several machines with uptimes in the hundreds of days (one 800+ days). For the longest time I thought only Solaris and AIX provided this kind of stability, but over the past few years I’ve started to include Linux in this list as well. You gotta love it when you see this:

$ uptime
2:08pm up 428 days, 3:00, 1 user, load average: 0.63, 0.50, 0.36

Now if only ksplice would make it into the Enterprise distributions! That would be rad, and I’m sure some fun “my uptime is better than your uptime” threads would ensue. :)

8 thoughts on “Who says Linux isn’t stable?”

  1. Simply because 2.4 and lower kernels would cycle after 429 days (32bit uptime counter).
    I’ve had boxen which would have uptimes counted in how many times the uptime counter had cycled around :)

  2. @sten — we’ve hit that lovely bug as well. ;) What is the largest uptime you’ve seen on a server? I remember logging into a Solaris machine once that had been up for over 1400 days. That was awesome to see, but scary as heck since the box hadn’t been patched in who knows how long!

  3. $ uptime
    22:51:23 up 1114 days, 8:35, 1 user, load average: 2.34, 2.20, 2.12

    I guess I will give it a reboot in the not too distant future.

  4. $ uptime
    19:41:50 up 1320 days, 2:57, 1 user, load average: 0.00, 0.00, 0.01

    I’m not saying where that box is…heh

  5. Just about cried the other day. Facilities guy popped the building main that powers my server room and the generator cut-over failed due to mechanical defect.

    Was about 3 weeks short of 1000 days uptime on two of my production file servers.

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