X-Git-Url: https://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/ebbb4a7b5a373fadbf342c6bf7802a04d171ec65..9a80de16587f87db66b6645a892391c22bdb2502:/blog/index.rss diff --git a/blog/index.rss b/blog/index.rss index 55ff775502..6300a6646a 100644 --- a/blog/index.rss +++ b/blog/index.rss @@ -6,6 +6,33 @@ http://people.skolelinux.org/pere/blog/ + + Version 3.1 of Cura, the 3D print slicer, is now in Debian + http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html + http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html + Tue, 13 Feb 2018 06:20:00 +0100 + <p>A new version of the +<a href="https://tracker.debian.org/pkg/cura">3D printer slicer +software Cura</a>, version 3.1.0, is now available in Debian Testing +(aka Buster) and Debian Unstable (aka Sid). I hope you find it +useful. It was uploaded the last few days, and the last update will +enter testing tomorrow. See the +<a href="https://ultimaker.com/en/products/cura-software/release-notes">release +notes</a> for the list of bug fixes and new features.</p> Version 3.2 +was announced 6 days ago. We will try to get it into Debian as +well.</p> + +<p>More information related to 3D printing is available on the +<a href="https://wiki.debian.org/3DPrinting">3D printing</a> and +<a href="https://wiki.debian.org/3D-printer">3D printer</a> wiki pages +in Debian.</p> + +<p>As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p> + + + Overvåkning i Kina vs. Norge http://people.skolelinux.org/pere/blog/Overv_kning_i_Kina_vs__Norge.html @@ -109,6 +136,11 @@ GPS-sporing (eCall).</p> <p>Det er jammen godt vi lever i et liberalt demokrati, og ikke en overvåkningsstat, eller?</p> + +<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til +det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner +til min adresse +<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p> @@ -131,6 +163,10 @@ gleder oss til å se deg igjen'.</p> <p>I would say that this state is passed sad and over in embarrassing.</p> <p>I removed personal and private information to be nice.</p> + +<p>As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p> @@ -953,88 +989,6 @@ exist and include a link to both IMDB and The Internet Archive, the script used to generate free-movies-archive-org-wikidata.json should pick up the mapping as soon as wikidata is updates.</p> -<p>As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p> - - - - - Some notes on fault tolerant storage systems - http://people.skolelinux.org/pere/blog/Some_notes_on_fault_tolerant_storage_systems.html - http://people.skolelinux.org/pere/blog/Some_notes_on_fault_tolerant_storage_systems.html - Wed, 1 Nov 2017 15:35:00 +0100 - <p>If you care about how fault tolerant your storage is, you might -find these articles and papers interesting. They have formed how I -think of when designing a storage system.</p> - -<ul> - -<li>USENIX :login; <a -href="https://www.usenix.org/publications/login/summer2017/ganesan">Redundancy -Does Not Imply Fault Tolerance. Analysis of Distributed Storage -Reactions to Single Errors and Corruptions</a> by Aishwarya Ganesan, -Ramnatthan Alagappan, Andrea C. Arpaci-Dusseau, and Remzi -H. Arpaci-Dusseau</li> - -<li>ZDNet -<a href="http://www.zdnet.com/article/why-raid-5-stops-working-in-2009/">Why -RAID 5 stops working in 2009</a> by Robin Harris</li> - -<li>ZDNet -<a href="http://www.zdnet.com/article/why-raid-6-stops-working-in-2019/">Why -RAID 6 stops working in 2019</a> by Robin Harris</li> - -<li>USENIX FAST'07 -<a href="http://research.google.com/archive/disk_failures.pdf">Failure -Trends in a Large Disk Drive Population</a> by Eduardo Pinheiro, -Wolf-Dietrich Weber and Luiz André Barroso</li> - -<li>USENIX ;login: <a -href="https://www.usenix.org/system/files/login/articles/hughes12-04.pdf">Data -Integrity. Finding Truth in a World of Guesses and Lies</a> by Doug -Hughes</li> - -<li>USENIX FAST'08 -<a href="https://www.usenix.org/events/fast08/tech/full_papers/bairavasundaram/bairavasundaram_html/">An -Analysis of Data Corruption in the Storage Stack</a> by -L. N. Bairavasundaram, G. R. Goodson, B. Schroeder, A. C. -Arpaci-Dusseau, and R. H. Arpaci-Dusseau</li> - -<li>USENIX FAST'07 <a -href="https://www.usenix.org/legacy/events/fast07/tech/schroeder/schroeder_html/">Disk -failures in the real world: what does an MTTF of 1,000,000 hours mean -to you?</a> by B. Schroeder and G. A. Gibson.</li> - -<li>USENIX ;login: <a -href="https://www.usenix.org/events/fast08/tech/full_papers/jiang/jiang_html/">Are -Disks the Dominant Contributor for Storage Failures? A Comprehensive -Study of Storage Subsystem Failure Characteristics</a> by Weihang -Jiang, Chongfeng Hu, Yuanyuan Zhou, and Arkady Kanevsky</li> - -<li>SIGMETRICS 2007 -<a href="http://research.cs.wisc.edu/adsl/Publications/latent-sigmetrics07.pdf">An -analysis of latent sector errors in disk drives</a> by -L. N. Bairavasundaram, G. R. Goodson, S. Pasupathy, and J. Schindler</li> - -</ul> - -<p>Several of these research papers are based on data collected from -hundred thousands or millions of disk, and their findings are eye -opening. The short story is simply do not implicitly trust RAID or -redundant storage systems. Details matter. And unfortunately there -are few options on Linux addressing all the identified issues. Both -ZFS and Btrfs are doing a fairly good job, but have legal and -practical issues on their own. I wonder how cluster file systems like -Ceph do in this regard. After all, there is an old saying, you know -you have a distributed system when the crash of a computer you have -never heard of stops you from getting any work done. The same holds -true if fault tolerance do not work.</p> - -<p>Just remember, in the end, it do not matter how redundant, or how -fault tolerant your storage is, if you do not continuously monitor its -status to detect and replace failed disks.</p> - <p>As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>