full image - Repost: DSM migration advise (from Reddit.com, DSM migration advise)
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Hi,I've received a fresh new DS423+, so I'm preparing for data and DSM migration.Old DS: DS216+II, 2x2TB HDD (SHR, ext4)New DS: DS423+, 4x8TB HDD (SHR, Btrfs), 2x NVMe SSD cacheBecause there is a file system change, data needs to be copied either manually or with HyperBackup.Is it possible to migrate so that the new DS replaces the old one seamlessly, keep the old config, avoid any conflicts or the need of reconfiguring DSM, client devices, QuickConnect etc.?I'm thinking about this process:backup DSM config on the old DSshutdown the old DSmove the old disks from the old DS to the new DS, add two new disksstart the new DScreate a new volume on the new disks (SHR, Btrfs)install DSM to the new disksrestore DSM config on the new DScopy data from the old disks to the new disksremove the old disks, replace with additional two new disks (total four)add the additional new disks to the new volume, wait for SHR to rebuildI'm considering this way because copying between disks on the same DS should be faster then running both DS's at the same time and copying over network.Are there any drawbacks, is it going to be possible? Shall I install NVMe SSH cache before the first startup, or better wait after the migration is done? Thanks for any advices.
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