Difference between revisions of "20 November 2006"
From Organic Design wiki
(The windows version is available from [http://www.7-zip.org www.7-zip.org]) |
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;XmlWiki backup system improved | ;XmlWiki backup system improved | ||
| − | The Organic Design [[backup]]s are created daily by [[User:Bender|Bender]], compressed and distributed over [[w:SSH|SSH]] to various other domains. Today we've changed over from the classic [[w:gzip|gzip]] compression utility which uses the [[w:LZ77|LZ77]] algorithm to a much more modern utility called [[w:7-Zip|7-Zip]] which uses the far more efficient [[w:LZMA|LZMA]] algorithm. This change reduces our backup size to almost a third saving on space and bandwidth resource. | + | The Organic Design [[backup]]s are created daily by [[User:Bender|Bender]], compressed and distributed over [[w:SSH|SSH]] to various other domains. Today we've [http://www.organicdesign.co.nz/wiki/index.php?title=Commands.pl&diff=0&oldid=40834 changed] over from the classic [[w:gzip|gzip]] compression utility which uses the [[w:LZ77|LZ77]] algorithm to a much more modern utility called [[w:7-Zip|7-Zip]] which uses the far more efficient [[w:LZMA|LZMA]] algorithm. This change reduces our backup size to almost a third saving on space and bandwidth resource. |
This is the first step in a number of improvements we'd like to make to our backup system to counteract the ongoing decrease in communications reliability we've been experiencing over the last few months. The next step will be to adjust [[commands.pl]] to keep retrying connections until successful, and to allow continuation of partial transfers. | This is the first step in a number of improvements we'd like to make to our backup system to counteract the ongoing decrease in communications reliability we've been experiencing over the last few months. The next step will be to adjust [[commands.pl]] to keep retrying connections until successful, and to allow continuation of partial transfers. | ||
*We used a standalone linux binary from http://sourceforge.net/projects/p7zip | *We used a standalone linux binary from http://sourceforge.net/projects/p7zip | ||
*The windows version is available from [http://www.7-zip.org www.7-zip.org] and is a good free open-source replacement for winzip or winrar | *The windows version is available from [http://www.7-zip.org www.7-zip.org] and is a good free open-source replacement for winzip or winrar | ||
| + | *The first ''.t7z'' (.tar.7z) backup was created, transferred and decompressed succesffully in both Linux and Windows today | ||
| + | *Gzip backups were compressed to about 20.5% of the original size, the new 7-Zip backups are about 7.9% | ||
</table> | </table> | ||
Latest revision as of 18:55, 20 November 2006
The Organic Design backups are created daily by Bender, compressed and distributed over SSH to various other domains. Today we've changed over from the classic gzip compression utility which uses the LZ77 algorithm to a much more modern utility called 7-Zip which uses the far more efficient LZMA algorithm. This change reduces our backup size to almost a third saving on space and bandwidth resource. This is the first step in a number of improvements we'd like to make to our backup system to counteract the ongoing decrease in communications reliability we've been experiencing over the last few months. The next step will be to adjust commands.pl to keep retrying connections until successful, and to allow continuation of partial transfers.
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