I am curious about Synology's RAID Technology is based on which linux kernel modules. It seems MD+LVM according to its service center but I am not quite sure. Or the RAID function on filesystem is also possible.
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They use MDRAID+LVM and they use their proprietary software RAID implementation. Second one should be avoided due to smaller user base and recovery issues.
https://www.synology.com/en-us/knowledgebase/DSM/tutorial/Storage/What_is_Synology_Hybrid_RAID_SHR
BaronSamedi1958
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Actually I was confused and still confused now. I quote a sentence, SHR is based on a Linux RAID management system, from the post. It seems SHR is a managment application but eventually it still relies on linux kernel software RAID. – codexplorer Sep 02 '20 at 02:26
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3It’s a fork-out. Standalone quite poorly maintained code and some custom on-disk format. – BaronSamedi1958 Sep 02 '20 at 05:35
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1It is weird, isn't? Just a hype or something else? But thank you anyway. – codexplorer Sep 03 '20 at 03:22
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1An attempt to punch above their weight IMHO. – BaronSamedi1958 Sep 03 '20 at 05:48
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The SHR is a mix of LVM and btrfs :https://daltondur.st/syno_btrfs_1/ – kofemann Sep 05 '20 at 21:40