http://linux-vserver.at/index.php?action=history&feed=atom&title=User_talk%3AAndybill 2026-04-11T01:36:42Z Revision history for this page on the wiki MediaWiki 1.20.2 http://linux-vserver.at/index.php?title=User_talk:Andybill&diff=2640&oldid=prev 2007-08-01T14:33:18Z

<p>Site-to-site failover of VServers, and experiments with the ZFS filesystem.</p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 14:33, 1 August 2007</td> </tr><tr><td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">I'm not sure whether this the right place for this</del>, <del class="diffchange diffchange-inline">or whether </del>anyone <del class="diffchange diffchange-inline">will see it! but here's a list of questions I have </del>and <del class="diffchange diffchange-inline">what I want to test!</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Transfer of vservers over L2TP: effects of latency in transferring a vserver from one host to another</ins>, <ins class="diffchange diffchange-inline">with block-replicated storage used for the /vservers area .... </ins>anyone <ins class="diffchange diffchange-inline">tried this? Update: tested </ins>and <ins class="diffchange diffchange-inline">working fine across a Fast Ethernet connection between two data centres. </ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Installation on Debian 4.0 SPARC, Ubuntu Edgy SPARC and x86 32</del>-<del class="diffchange diffchange-inline">bit SMP: can I host other distros, yes</del>, but <del class="diffchange diffchange-inline">can I host other pseudo-architectures? For example, can I get FC6 vservers </del>to <del class="diffchange diffchange-inline">run </del>on <del class="diffchange diffchange-inline">SPARC hosts?</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">ZFS for storage of vservers is working up to a point; using zfs</ins>-<ins class="diffchange diffchange-inline">fuse is fine for the /var/lib/vservers and /etc/vservers data</ins>, but <ins class="diffchange diffchange-inline">any attempt </ins>to <ins class="diffchange diffchange-inline">use apt fails. Seems to be due to a problem with apt mmap usage </ins>on <ins class="diffchange diffchange-inline">FUSE, not ZFS specific. Horrible workaround is move </ins>vserver <ins class="diffchange diffchange-inline">data back to the spare ext3</ins>, <ins class="diffchange diffchange-inline">do </ins>the install<ins class="diffchange diffchange-inline">/upgrade, then move it back </ins>to <ins class="diffchange diffchange-inline">ZFS. Reason for having vservers on ZFS is that they are now snapshotted by ZFS each time they start successfully</ins>, <ins class="diffchange diffchange-inline">so when experimenting </ins>with <ins class="diffchange diffchange-inline">new builds </ins>/ <ins class="diffchange diffchange-inline">software, I don't have to do backups :-)</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&#160;</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Transfer of vservers: can I test and develop </del>vserver <del class="diffchange diffchange-inline">templates on my (AMD64) laptop</del>, <del class="diffchange diffchange-inline">save </del>the <del class="diffchange diffchange-inline">template and </del>install <del class="diffchange diffchange-inline">on my (SPARC) servers?</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>&#160;</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Transfer of vservers over L2TP: effects of latency in transferring a vserver from one host </del>to <del class="diffchange diffchange-inline">another</del>, with <del class="diffchange diffchange-inline">block-replicated storage used for the </del>/<del class="diffchange diffchange-inline">vservers area .... anyone tried this?</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div></div></td></tr> </table>

Andybill http://linux-vserver.at/index.php?title=User_talk:Andybill&diff=2492&oldid=prev 2007-05-21T18:54:59Z

<p></p> <p><b>New page</b></p><div>I'm not sure whether this the right place for this, or whether anyone will see it! but here's a list of questions I have and what I want to test!<br /> <br /> Installation on Debian 4.0 SPARC, Ubuntu Edgy SPARC and x86 32-bit SMP: can I host other distros, yes, but can I host other pseudo-architectures? For example, can I get FC6 vservers to run on SPARC hosts?<br /> <br /> Transfer of vservers: can I test and develop vserver templates on my (AMD64) laptop, save the template and install on my (SPARC) servers?<br /> <br /> Transfer of vservers over L2TP: effects of latency in transferring a vserver from one host to another, with block-replicated storage used for the /vservers area .... anyone tried this?</div>

Andybill