System Downtime & Outages

This is a simple page which is designed to record outages.

Friday 16th November 2007

One outage of approximately 30 minutes due to ISP network outage.

Saturday 13th October 2007

Two outages - one planned and one not.

The server was initially taken offline for approximately 10 minutes to perform a kernel upgrade. This was planned, and announced a week in advance.

Later the server appeared to lose all network connectivity. This coincided with the following output from dmesg:

xen_net: Memory squeeze in netback driver.
printk: 4 messages suppressed.
xen_net: Memory squeeze in netback driver.
printk: 4 messages suppressed.
xen_net: Memory squeeze in netback driver.

(Solution: Login to the xen shell and restart one guest domain, via 'reboot'. All the rest became pingable...)

I recieved a text message from one of our users alerting me of the outage and restored service approximately ten minutes later. Downtime unkown.

Sunday 7th October 2007

The server was taken offline for approximately 10 minutes to perform an upgrade of the xen-utils package.

This outage was anticipated and an announcement was sent a week in advance.

Total downtime upon this host in the order of 30 minutes so far in 2007.