Thank you very much for your reply . I got the point and it seems that the /var/log/messages are more handy . Thank you again for your time
On Sun, Oct 30, 2016 at 12:36 AM, Gene Heskett <[email protected]> wrote: > On Sunday 30 October 2016 02:37:28 Hadi Motamedi wrote: > > > Dear All > > I am using a debian server for cdr billing and mediation device on a > > remote network. I am experiencing problem that I am suspicious it > > comes from main supply power cut at the remote site. The power supply > > to the remote site comes from battery charger that will be > > automatically switched in circuit under main supply power cut but > > cannot provide adequate power for more than 2 hours . I am suspicious > > that the remote system is suffering from many frequent main supply > > power cut . Can you please do me favor and let me know if there is any > > log on my debian server that I can check to see if there would be many > > frequent power cut there ? > > Thank you for your time > > Likely the only log will be /var/log/messages, which will show the reboot > time when power has been restored, IF the server is set to auto-boot > when power is restored. That should show when it restarted but may not > log the power failure because it doesn't have time to write the log. > So you can get your restart times, but not the fail time. > > Is that "battery charger" smart enough to be interfaced with nut? > > Thats short for Network UPS Tools, which can monitor and log such > activities, and even issue a clean shutdown to the whole system running > on this emergency power when the battery is nearly depleted. I'd also > see if natural gas is available at the site, so that a generator can be > started when the main power fails. > > Going whole house and all my toys I have a 20 Kwh Generac here that > starts automatically, so I have power back up in about 5 seconds, but > that was in the $7000 range installed. The wife has copd, and long > periods w/o the AC are very hard on her, so I did what I had to do. > This machine has a UPS, but most of the others here are set to > auto-reboot when power is restored. > > Enterprising individuals can likely setup much smaller emergency/standby > power since all it would take in a pi or arduino and some programming to > send the start and stop commands if it had an electric starter and > kill. You will need a "transfer" switch which must absolutely prevent > any locally generated power from feeding out into a failed power line as > that might kill someone trying to restore the power some distance away > from your site. > > Here in the states, kohler, generac, & a dozen house brands peddle > smaller such generators, but are not always proportionately priced. Most > of the teeny ones are 2 strokers, needing mixed fuel, don't have > electric starters and in my experience are run 3 or 4 times junk so you > wasted that $300. I suspect you are not in the "states" so I don't have > a good idea what may be locally available for you. > > Just throwing out ideas to see if anything "sticks to the wall" :) > > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > Genes Web page <http://geneslinuxbox.net:6309/gene> > >
