Server Upgrades and Outages

After 2 months of attempts, we have successfully upgraded to 4.4(hardened) and the latest ZFS development branch. The latest ZFS development branch contains a new feature called ABD which is meant to reduce memory waste by changing from the standard slab allocator for cache objects to a scatter list. Initial testing on other machines showed nice improvements. Attempted to upgrade to 4.8(hardened) at the same time, which ran into some roadblocks with boot-time kernel panics. Will try upgrading to a newer kernel in the future.

Server Upgrades and Outages

Been a wacky month.

Had to shut down for an hour on April 25th, due to extended power outage.

The past 2 weeks have been spent trying to upgrade the storage on bloomfield. This work has been completed, see the shiny new specs on the status page.

Will have to power down briefly in the next week or so to replace the UPS batteries. More updates to follow.

Move complete

Recently moved, so the server was offline for 2 weeks.  Server is back online, and been brought up-to-date.  Cogeco has also upgraded our connection to 30Mbps/10Mbps.

If something looks broken, let me know so I can fix it.

Electrical testing

Just a head’s up. I don’t expect any issues, as we’re UPS-protected.

The IESO will perform a voltage reduction test on Tuesday, February 7, 2012. There will be a three percent voltage reduction test between 9:00 and 10:00 EST, followed by a five percent test between 13:00 and 14:00 EST.

http://www.ieso.ca/imoweb/news/newsItem.asp?newsItemID=5945