Feb 092017

This page will hold slides from talks I have presented. This list is not complete. Tips on running a conference for 250 people all by yourself – EuroBSDCon 2012 – slides

Jan 212017

You like tech. You know you like it. Do you know what part of tech you are most passionate about? I credit a Google employee for the following idea. It was told to me while I was at the FreeBSD Foundation booth at GHC 2016. The following is a relatively cheap project you can do […]

Jan 172017

I was doing some work in a remote location with a laggy connection to home. I was running ansible and kept encountering these errors: fatal: [pg01]: FAILED! => {“failed”: true, “msg”: “Timeout (12s) waiting for privilege escalation prompt: “} Rerunning the script would encounter the same error in a different part of the script. After […]

Dec 182016

NOTE: this post has been replaced by a newer version. Please meet x8dtu, a server destined to be the future home of FreshPorts. There is nothing installed here. In short: FreeBSD 11 booting off a mirrored pair of zfsroot SSDs 4.5TB of mirrored ZFS 196612 MB of RAM (yeah, that’s 196GB of RAM) Supermicro X8TDU […]

Dec 142016

The knew server is ‘frozen’ again. This has been happening daily at about O301 UTC each night. See my Twitter feed for background. In this post I will include details as I progress through the data. The server in question is knew (yes, that’s the hostname). dtrace hotkernel I left this running in an ssh […]

Nov 222016
Flashing an LSI SAS 9201-16i - correctly

Three weeks ago, I thought I had flashed my new LSI SAS 9201-16i. I had not. When I powered up the system via mfsBSD, I could see the device, but during the boot process, there was no splash screen. I now believe this should always be a signal that you have not correctly flashed the […]

Nov 162016

This server recently moved to a rack-mount chassis. On an interim basis, it contains an LSI SAS 9101-16i. For future reference, this is the slocum server, which I use for various jails and services. The filesystems, well, some of them: And dmesg:

Nov 032016
Flashing an LSI SAS 9201-16i

WARNING: This did not work. It succeeded, without error, but the card did not work. There will be a new blog post soon. Yesterday, a new LSI SAS 9201-16i arrived. I bought it on eBay from a supplier in China and paid for expedited shipping. I offered US$250 for their $338 listing and it was […]