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Andrea Mazzoleni 2016-01-11 19:41:49 +01:00
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@ -95,6 +95,7 @@ Frequently Asked Questions for <span class="bold">SnapRAID</span>.
<li><a href="#addpardisk">How can I add an additional parity disk to an existing array?</a></li>
<li><a href="#repdatadisk">How can I replace a data disk?</a></li>
<li><a href="#reppardisk">How can I replace a parity disk?</a></li>
<li><a href="#move">How can I safely move files from one disk to another?</a></li>
<li><a href="#defrag">Can I defragment the data and parity disks?</a></li>
<li><a href="#upgrade">How can I upgrade to a newer version of SnapRAID ?</a></li>
<li><a href="#truecrypttimestamp">Why TrueCrypt containers are never saved by SnapRAID?</a></li>
@ -781,6 +782,25 @@ but ensure to use the -d option to fix only the interested parity and not the ot
snapraid fix -d PARITY_NAME
</pre>
<h3 id="move">How can I safely move files from one disk to another?</h3>
<p>
In case you need to move files from one data disk of the array to another disk
also in the array, the 100% safe way to proceed is:
</p>
<li>
<ul>Copy the files to the new location.
<ul>Run a 'sync' command.
<ul>Delete the files from the original location.
<ul>Run again a 'sync' command.
</li>
<p>
This process gives the guarantee that even if disks die during the sync process,
you will be able to recover everything. It also verifies the hashes of all the
moved files are matching the original ones.
</p>
<h3 id="defrag">Can I defragment the data and parity disks?</h3>
<p>
Yes, you can defragment data and parity disks. Defragmentation doesn't invalidate the SnapRAID data.