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docs: add paragraph on verification jobs to ransomware section

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Signed-off-by: Stefan Sterz <s.sterz@proxmox.com>
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Stefan Sterz 2022-11-28 15:34:01 +01:00 committed by Thomas Lamprecht
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docs/storage.rst
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@ -473,6 +473,13 @@ While creating backups is important, verifying that they work is equally
important. This ensures that you are able to react quickly in case of an
emergency and keeps disruption of your services to a minimum.
:ref:`Verification jobs <maintenance_verification>` can also assist in detecting
a ransomware presence on a Proxmox Backup Server. Since verification jobs
regularly check if all backups still match the checksums on record, they will
start to fail if a ransomware starts to encrypt existing backups. Please be
aware, that an advanced enough ransomware could circumvent this mechanism.
Hence, consider verification jobs only as an additional, but not a sufficient
protection measure.
General Prevention Methods and Best Practices
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~