Which Windows and Linux OSs support no-rescan upon reboot?
A shutdown (from the OS menu or CLI) of any supported Linux or Windows source server no longer causes a rescan in DRS once the source server is restarted. A rescan means that the agent on the source server rereads all blocks on all replicated disks and transmits blocks that are different from the previously replicated data. A rescan is similar to the initial sync but is faster because only blocks that are different need to be transmitted.
Rescans can still happen following a hard reboot, crashes, or when you add or remove disks to or from
the source server. In addition, a rescan will occur if the underline Storage types do not use static DUIDs
Windows Server
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2012r1
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2012r2
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2016
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2019
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2022
Linux
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CentOS 6–8
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Oracle 6–8
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RHEL 6–9
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Rocky 8 and 9
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SLES 12 and 15
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Debian 9–11
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Ubuntu 16, 18, 20, and 22
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Amazon Linux 2
Note
For Linux, no-rescan on reboot is supported only on environments that use initramfs.
Important
A rescan duration may impact your RPO
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While a rescan is conducted, point of time recovery cannot be made.
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If a disaster occurs during the rescan, you will only be able to restore point of time from before the rescan began. This could affect your ability to meet your RPO.