• update grade not-z scripts to handle/be aware of winter terms
• update system page for (new)www
• load balance/replicate www/wiki content between LAIR and DSLAB
• update system page for db

Some links of interest:

• LLVM
• GLglobe
• Heavens Above
• http://wiki.debian.org/kristian_jerpetjoen
• http://www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html
• http://myproxylists.com/nix-brute-force
• My Plan9 Documentation page
• The Sokraits/Halfadder System Documentation page
• http://www.egghelp.org/commands/channels.htm
• http://stackoverflow.com/questions/470617/get-current-date-and-time-in-php
• http://www.rjsystems.nl/en/2100.php
• BitSavers
• Time Zone HTML5 app
• http://toic.org/2009/01/18/reverse-ssh-port-forwarding/
• Divergent Thinking
  • http://en.wikipedia.org/wiki/Divergent_thinking
  • http://faculty.washington.edu/ezent/imdt.htm
• https://help.ubuntu.com/community/Installation/QemuEmulator
• Socket Programming
  • http://www.linuxhowtos.org/C_C++/socket.htm
  • http://www.few.vu.nl/~jms/socket-info.html
  • http://www.lowtek.com/sockets/
  • http://www.tenouk.com/Module40.html
  • http://www.tenouk.com/Module42.html
  • http://www.tenouk.com/Module43a.html
• ALIX
  • http://markshroyer.com/guides/router/
  • http://markshroyer.com/2010/12/openbsd-alix-via-ubuntu/
  • http://www.martinmellor.com/freebies/pinouts/IDE44_2_5_pinout.htm (IDE 44-pin pin-out)
• BeagleBoard
  • http://elinux.org/BeagleBoardDebian
• Xen
  • http://www.tumfatig.net/20110125/running-openbsd-on-xen/ (OpenBSD HVM)
  • https://wiki.debian.org/Xen
• http://www.mydigitallife.info/fix-gmail-imap-invalid-credentials-or-web-login-requires-failure-error/
• http://manoharvanga.com/hackme/
• http://chneukirchen.github.com/sabotage/
• http://www.linusakesson.net/programming/pipelogic/index.php
• Free Data Structures eBook: http://dotnetslackers.com/Community/files/folders/data-structures-and-algorithms/entry30283.aspx
• Polyphasic Sleep and Napping
  • http://priceonomics.com/the-nasa-studies-on-napping/
  • http://www.opinionspost.com/longevity-greek-island-way/
  • http://io9.com/the-science-behind-power-naps-and-why-theyre-so-damne-1401366016
• Brain Hacks
  • http://www.cracked.com/article_20166_5-brain-hacks-that-give-you-mind-blowing-powers.html?wa_user1=4&wa_user2=Science&wa_user3=article&wa_user4=recommended
• BASH sockets
  • http://hacktux.com/bash/socket
  • http://terminallinux.org/p/69/
• Debian Jessie daily builds (June 25th): http://d-i.debian.org/daily-images/amd64/20140625-00:18/netboot/gtk/debian-installer/amd64/
• NFSv4: https://help.ubuntu.com/community/NFSv4Howto
• Nettle/libhogweed crypto: http://www.lysator.liu.se/~nisse/nettle/nettle.html#Example
• Debian RAMdisks: http://reboot.pro/topic/14547-linux-load-your-root-partition-to-ram-and-boot-it/
• Zeo
  • https://forum.quantifiedself.com/showthread.php?tid=1421
  • http://www.cpaptalk.com/viewtopic/t98659/New-Zeo-Sleep-Monitor-for-Bedside-Units.html
  • https://github.com/zeoeng/zeo-android-api
  • http://eric-blue.com/2013/06/09/life-beyond-zeo/

On Tuesday, mdadm started reporting a failure in one of the drives in data1 (sdd)… I ordered a replacement, and finally got around to replacing it on Friday.

The hardware side of the equation went as expected and without incident. I then proceeded to spend far too much time convincing a broken grub to reinstall (ended up netbooting finnix, chrooting in).

I re-added the drive to the md volume (after rebuilding the initrd and rebooting):

data1:~# mdadm --add /dev/md0 /dev/sdd

and left it rebuilding the RAID.

With the md raid volume rebuilt, I set about getting the two peers once again talking… as has been the case in the past, this has proven non-trivial… the apparent working recipe:

data1:~# drbdadm disconnect lair_data
data1:~# drbdadm connect --discard-my-data lair_data

I had also issued an outdate to data1's data (which didn't seem to make a difference, or maybe it did, and “discard-my-data” doesn't imply ALL data, but merely some sort of small difference in unsynced data)… at any rate… they are once again talking.