Example ZFS configurations for a Sun x4500 with 24TB of raw disk. Two disks are held for OS, leaving 46 available disks for ZFS. One 45 disk raidz2 zvol across 6 controllers. Most disk, but very slow performance. ~21TB space. zpool create -f thumper raidz2 c0t1d0 c1t1d0 c4t1d0 c5t1d0 c6t1d0 c7t1d0 c0t2d0 c1t2d0 c4t2d0 c5t2d0…
Every sysadmin, network admin, and DBA has their own toolbelt of vital timesavers and lifesavers they use to pull themselves out of a jam or avoid problems before they arise. Half the game is finding the good tools – the other half is sorting out how they work.
Plenty of sites help you find the tools you need but few point out the tools that would be elevated from good to great if only the documentation was as good as the tool. I aim to fix that with the first ever LOPSA Underdocumented Tool Challenge!
Send us your nominations for best underdocumented tool by July 6th, we’ll publish the top 10. The best nomination will win a prize of my choosing.
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The LOPSA blog is nice but I sometimes get frustrated by the editing tools Drupal provides. I also sometimes want to blog about non-system-administration related things and don’t think this is a great place for that kind of content. As such, I’m going to start using Blogger instead. My new blog can be found at:…
Something is in *my* blog.
It is not the extraordinary that no one else *can* do But the ordinary that no one else *will* do
TAR per frame means each TIFF file is written as a separate TAR file onto tape. This is a practice in the entertainment industry. Now, the default tape device (/dev/st0 on Linux) rewinds after each command. Trying to read consecutive files, and rewinding between each read, adds a lot of time. It’s possible to specify…
If you want to propose a new (or repeat) workshop for LISA this year please send your proposal to lisa08workshops@usenix.org in the next few days. I’ll be putting the slate together just after the PC meeting.
Ohio LinuxFest 2008 Free and Open Source Software Conference and Expo Columbus, Ohio | October 11, 2008 About the Ohio LinuxFest The fifth annual Ohio LinuxFest will be held on October 11, 2008 at the Greater Columbus Convention Center in downtown Columbus, Ohio. Hosting authoritative speakers and a large expo, the Ohio LinuxFest welcomes Free…
Last weekend we went to LinuxFest NorthWest 2008 in Bellingham, WA. It was a great time, we handed out a bunch of Tee-Shirts, met a lot of good people, and saw some interesting presentations. I even spoke with around half a dozen potential summer interns. What was really interesting, however, was the response to LOPSA….
Late last year, I started to take Tae Kwon Do lessons. It started out because my son was interested, and I wanted to encourage him. I found out that there is a veritable Tae Kwon Do legend living in the Columbus area and teaching just a few miles from my house. Sr. Grandmaster (9th Dan)…