What’s a data scrubber?
It’s a data maintenance feature that amends data in storage pools that are incorrect or incomplete. It works on BTRFS volumes or RAID 5/6 storage pools. It’s scheduled to run monthly on my NAS. I guess it started now as I upgraded my drives from 4x4TB to 4x18TB.
It scrubs your data
I think it’s more that they’ve increased the size of the drive from 10TB to 48TB.
When initializing a new array, it’s a (usually optional) process of zeroing out the newly added disks. Sometimes it’s required as part of calculating parity across the array (redundancy data).
https://kb.synology.com/en-global/DSM/help/DSM/StorageManager/storage_pool_data_scrubbing?version=7
“Data scrubbing is a data maintenance feature that amends data in storage pools that are incorrect or incomplete. We recommend performing data scrubbing periodically to ensure data consistency and avoid data loss in the event of a drive failure.”
Excited for you! I’m going from 1x 12tb USB drive to 4x internal 18tb drives. I’m building the NAS from scratch and keeping my other server for its current services (mostly Plex). My parts have been defective though, so it’s all just sitting waiting for a replacement mobo.
It was similar for me. From a single USB 12TB drive, to an old Qnap with 4x4TB drives, to a (now) revived Synology NAS with 4x18TB drives. I have several “servers” but they are USFFs with no room for so many drives.
Yeah my 82 TB is almost full, not looking forward to buying more drives…
A fellow synology user upgraded…
I also want to upgrade :( why do harddrives have to be so expensive?!
I had to increase the warning threshold to not get warning notifications daily…
