https://wiki.bwhpc.de/wiki/index.php?action=history&feed=atom&title=SDS%40hd%2FSecurity
SDS@hd/Security - Revision history
2026-08-11T13:27:34Z
Revision history for this page on the wiki
MediaWiki 1.39.17
https://wiki.bwhpc.de/wiki/index.php?title=SDS@hd/Security&diff=16226&oldid=prev
H Schumacher: Added hints and explanations
2026-07-20T13:41:06Z
<p>Added hints and explanations</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:41, 20 July 2026</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>= Snapshots =</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">=</ins>= Snapshots <ins style="font-weight: bold; text-decoration: none;">=</ins>=</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Snapshots are used to create a point-in-time copy of a file system or file sets.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Snapshots are used to create a point-in-time copy of a file system or file sets.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_4_0_lhs"></a>Snapshots can be used to quickly restore files or folders that were unintentionally deleted. Snapshots also provide a form of file versioning and the ability to revert to a previous version of a file, depending on the time interval between snapshots.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_6_0_rhs"></a><ins style="font-weight: bold; text-decoration: none;"><ins>Motivation</ins>: </ins>Snapshots can be used to quickly restore files or folders that were unintentionally deleted. Snapshots also provide a form of file versioning and the ability to revert to a previous version of a file, depending on the time interval between<ins style="font-weight: bold; text-decoration: none;"> snapshots. The shorter ago a change was made and/or the longer it was kept the likelier it is that it can still be found in one of the</ins> snapshots.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>'''Snapshots:'''</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_8_3_rhs"></a><ins style="font-weight: bold; text-decoration: none;">ls</ins> .snapshots</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_8_4_rhs"></a><ins style="font-weight: bold; text-decoration: none;">> </ins>@GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.08.10-19.07.13 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.09-14.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.14-20.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.16-16.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.19-08.15.00</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_8_5_rhs"></a>@GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.08.11-01.07.13 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.09-22.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.14-20.45.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.16-16.45.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.19-09.00.00</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_8_6_rhs"></a>@GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.08.11-07.07.13 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.10-06.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.14-21.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.16-17.15.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.19-03.15.00 </div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_8_7_rhs"></a>@GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.19-03.45.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.19-05.45.00 @GMT-<ins style="font-weight: bold; text-decoration: none;">2026</ins>.09.19-07.45.00</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>== Hints ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Inside your share (Speichervorhaben), you can find the Snapshots in the subdirectory ".snapshots":</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><pre></div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Paragraph was moved. Click to jump to new location." href="#movedpara_8_3_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_12_1_lhs"></a><del style="font-weight: bold; text-decoration: none;">>cd</del> .snapshots</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>>ls</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_12_3_lhs"></a>@GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.08.10-19.07.13 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.09-14.15.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.14-20.15.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.16-16.15.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.19-08.15.00</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_12_5_lhs"></a>@GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.08.11-07.07.13 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.10-06.15.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.14-21.15.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.16-17.15.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.19-03.15.00 </div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_12_6_lhs"></a>@GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.19-03.45.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.19-05.45.00 @GMT-<del style="font-weight: bold; text-decoration: none;">2017</del>.09.19-07.45.00</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* It's not allowed to use SDS@hd as a backup for your data. The data on SDS@hd must be actively used. If the data is not actively used, you might find out about an accidental deletion of data far too late so that there isn't a snapshot anymore that contains the deleted data. </div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><br></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Please avoid keeping duplicate data in your SV. Even if the duplicate data is stored in the SV for a short time period only, it can still make it into a snapshot and use up storage space on SDS@hd for quite a long time.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><br></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* When uploading data, please make sure that all the data actually made it into the SV. The snapshots can't capture data that has never reached the SV. Please see [[Data_Transfer | Data Transfer]] for help with ensuring that data transfers were finished successfully.</div></td>
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H Schumacher
https://wiki.bwhpc.de/wiki/index.php?title=SDS@hd/Security&diff=10644&oldid=prev
S Richling: Created page with "= Snapshots = Snapshots are used to create a point-in-time copy of a file system or file sets. Snapshots can be used to quickly restore files or folders that were unintentiona..."
2022-07-27T13:08:52Z
<p>Created page with "= Snapshots = Snapshots are used to create a point-in-time copy of a file system or file sets. Snapshots can be used to quickly restore files or folders that were unintentiona..."</p>
<p><b>New page</b></p><div>= Snapshots =<br />
Snapshots are used to create a point-in-time copy of a file system or file sets.<br />
Snapshots can be used to quickly restore files or folders that were unintentionally deleted. Snapshots also provide a form of file versioning and the ability to revert to a previous version of a file, depending on the time interval between snapshots.<br />
<br />
'''Snapshots:'''<br />
<br />
Inside your share (Speichervorhaben), you can find the Snapshots in the subdirectory ".snapshots":<br />
<pre><br />
>cd .snapshots<br />
>ls<br />
@GMT-2017.08.10-19.07.13 @GMT-2017.09.09-14.15.00 @GMT-2017.09.14-20.15.00 @GMT-2017.09.16-16.15.00 @GMT-2017.09.19-08.15.00<br />
@GMT-2017.08.11-01.07.13 @GMT-2017.09.09-22.15.00 @GMT-2017.09.14-20.45.00 @GMT-2017.09.16-16.45.00 @GMT-2017.09.19-09.00.00<br />
@GMT-2017.08.11-07.07.13 @GMT-2017.09.10-06.15.00 @GMT-2017.09.14-21.15.00 @GMT-2017.09.16-17.15.00 @GMT-2017.09.19-03.15.00 <br />
@GMT-2017.09.19-03.45.00 @GMT-2017.09.19-05.45.00 @GMT-2017.09.19-07.45.00<br />
</pre><br />
<br />
<br><br />
<br></div>
S Richling