<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Is it intended to be backported to RHEL6 kernels as well?<br><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">-- </div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">----------------------------------------------</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; ">Andres Toomsalu</div></div></span>
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<br><div><div>On 18.10.2012, at 16:43, Zdenek Kabelac wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Dne 18.10.2012 15:28, Spelic napsal(a):<br><blockquote type="cite">On 10/18/12 12:30, Zdenek Kabelac wrote:<br></blockquote><blockquote type="cite"><blockquote type="cite">Dne 17.10.2012 22:21, Andres Toomsalu napsal(a):<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">Hi,<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">I'm aware that thin provisioning is not yet production ready (no metadata<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">resize) - but is there a way to recover from thin pool failure when pool<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite">metadata was filled up?<br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Unfortunately there is no 'easy' advice for now yet - you hit current<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Achilles heel of thinp support in lvm2 - we are thinking how to make<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">recovery usable for user - but it's not easy task since many things are<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">making it very complex - so it still needs some month of work.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">So, supposing one is aware of this problem beforehand, at pool creation<br></blockquote><blockquote type="cite">can this problem be worked around by using --poolmetadatasize to make a<br></blockquote><blockquote type="cite">metadata volume much larger than the default?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">And if yes, do you have any advice on the metadata size we should use?<br></blockquote><blockquote type="cite"><br></blockquote><br>It really depends on the pool size and use-cases.<br><br>The max size is ~16GB for metadata.<br>The reasonable max size is probably within 4GB if you want to stay safe in the most possible conditions.<br><br>With 3.7 kernel and the next release of lvm2 (2.02.99) it's expected full support for live size extension of metadata device.<br><br>Zdenek<br><br><br></div></blockquote></div><br></body></html>