12-jun-2019

Power grid failure – and the aftermath
On May 31st, at about 7:30, we lost power on the grid so all was off. When power was restored – at about 12:30 – all started again – except for the data center. This can happen – if all machines get their power, all start up which causes the controlling unit to switch off. So I disconnected the Itanium machines and the drives, just the disk controller and Alpha on the grid. But it happened again. As it turned out: the power unit of the Alpha didn’t survive the break, so I was out of all services….
The easy solution: return to the small Personal Workstation – just 512 Mb in size – that was the original base. It’s all there, just moving over cables from one system to the other. But because this is a small machine, I had to switch off the database, blogs and all ‘heavy’ stuff so the most important functions for the home center would work as usual: NTP, DHCP and DNS, Mail and, to access mail and services, the webserver. No database, so no blogs. No downloads. no FTP.
No changes done in the router: the VMS instance was the same, just the hardware changed 🙂

Today I received the new power supply, installed it and restored the functions that I had to disable, and restarted the DS10. It should now all work (but it is possible that some functions are still unavailable, like FTP 🙂 But these will become available later.

That’s the reason I can only now show the logs of May…
Because this runs on June 1st, there was a problem in sipping the logs: there was no DKA0:[LOGS] directory. So this needs to be done now…

Mail log:
PMAS statistics for May
Total messages    :   3253 = 100.0 o/o
DNS Blacklisted   :      0 =    .0 o/o (Files:  0)
Relay attempts    :    330 =  10.1 o/o (Files: 30)
Accepted by PMAS  :   2923 =  89.8 o/o (Files: 30)
  Handled by explicit rule
         Rejected :   2295 =  78.5 o/o (processed),  70.5 o/o (all)
         Accepted :    132 =   4.5 o/o (processed),   4.0 o/o (all)
  Handled by content
        Discarded :    304 =  10.4 o/o (processed),   9.3 o/o (all)
     Quarantained :    126 =   4.3 o/o (processed),   3.8 o/o (all)
        Delivered :     66 =   2.2 o/o (processed),   2.0 o/o (all)

About the same as before.

Still, there seems to be a (minor) problem with the local disk (DKA0) – which seems to be none-existing. This to be handled later. in the mean time, extra pagefiles are created and installed, so the system should work properly.