<div dir="ltr"><font face="arial, sans-serif">Dear all,</font><br><div class="im" style="font-family:arial,sans-serif;font-size:12.800000190734863px"><span style="font-family:Calibri,sans-serif;font-size:14.399999618530273px">>The system does backups and currently is implemented using mysqldump and percona xtrabackup. </span></div>
<div><font face="Calibri, sans-serif" style="font-family:arial,sans-serif;font-size:12.800000190734863px"><span style="font-size:14.399999618530273px">>....<br></span></font><div class="im" style="font-family:arial,sans-serif;font-size:12.800000190734863px">
>A backup snapshot[1] is a copy of the database data that is stored on the volume or locally on the instance and backed up to swift at a point in time.<br></div><div class="im" style="font-family:arial,sans-serif;font-size:12.800000190734863px">
<br></div><div class="im"><span style="font-family:verdana,arial,sans-serif;font-size:12px;color:rgb(0,0,0);line-height:14.399999618530273px">I have a follow-up question to this. </span><br style="color:rgb(0,0,0);font-family:verdana,arial,sans-serif;font-size:12px;line-height:14.399999618530273px">
<br style="color:rgb(0,0,0);font-family:verdana,arial,sans-serif;font-size:12px;line-height:14.399999618530273px"><span style="font-family:verdana,arial,sans-serif;font-size:12px;color:rgb(0,0,0);line-height:14.399999618530273px">If I delete the database instace (e.g. the virtual machine - in which there is the engine MySQL and the Trove's Guest Agent - and the volume attached) by accident, how can I restore that instance even if I have a backup of the database?</span><br style="color:rgb(0,0,0);font-family:verdana,arial,sans-serif;font-size:12px;line-height:14.399999618530273px">
<br style="color:rgb(0,0,0);font-family:verdana,arial,sans-serif;font-size:12px;line-height:14.399999618530273px"><font color="#000000" face="verdana, arial, sans-serif"><span style="font-size:12px;line-height:14.399999618530273px">Thanks,</span></font></div>
</div><div class="im"><font color="#000000" face="verdana, arial, sans-serif"><span style="font-size:12px;line-height:14.399999618530273px">Giuseppe</span></font></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
2013/11/8 Craig Vyvial <span dir="ltr"><<a href="mailto:cp16net@gmail.com" target="_blank">cp16net@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">A snapshot and backup are basically analogous terms in trove. <div><br><div>A backup snapshot[1] is a copy of the database data that is stored on the volume or locally on the instance and backed up to swift at a point in time.</div>
<div>Trove stores the location of the backup so that a user can restore a database to a new instance.</div><div><br></div><div>There is another blueprint to support incremental backups.[2] Which will allow point in time restore/recovery of data.</div>
<div><br></div><div>Hope this helps.</div><div><br></div><div>[1] <a href="https://blueprints.launchpad.net/trove/+spec/consistent-snapshots" target="_blank">https://blueprints.launchpad.net/trove/+spec/consistent-snapshots</a></div>
<div>
[2] <a href="https://blueprints.launchpad.net/trove/+spec/incremental-backups" target="_blank">https://blueprints.launchpad.net/trove/+spec/incremental-backups</a> </div><div><br></div></div></div><div class="gmail_extra">
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On Wed, Nov 6, 2013 at 3:05 AM, Giuseppe Galeota <span dir="ltr"><<a href="mailto:giuseppegaleota@gmail.com" target="_blank">giuseppegaleota@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div class="h5">
<div dir="ltr">Can you give me a simple workflow that explains the process of a backup/snapshot?<div><br></div><div>Thanks,</div><div>Giuseppe</div></div><div><div><div class="gmail_extra"><br><br>
<div class="gmail_quote">2013/11/6 Giuseppe Galeota <span dir="ltr"><<a href="mailto:giuseppegaleota@gmail.com" target="_blank">giuseppegaleota@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear all,<div>what is the difference between Snapshot and Backup in the context of Trove (o Redwwarf) database backups that I see <a href="https://wiki.openstack.org/wiki/Trove/snapshot-design" target="_blank">here</a>?</div>
<div><br></div><div>Is it maybe the following:</div><div>- backup = copy of volume in which data are stored;</div><div>- snapshot = copy of volume plus virtual machine used to host the engine?</div><div><br></div><div>Are they the same concept?</div>
<div><br></div><div>Thanks,</div><div>Giuseppe</div></div>
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