How do you back up to another Synology device? Put up a vault as a warehouse, and accidentally deleted photos can be retrieved from last week

the DS220j in the corner of the study has been gathering dust for over half a month. When I replaced the NAS, it retired from my mom's house after a successful campaign, moved back without removing a single old drive, and it's been sitting next to Feiniu ever since. I originally planned to sell second-hand, but I came across a transaction from two years ago: rsync for remote backups. My mom's home had a delete command that spread the virus, and the 40GB copy disappeared in no time. only managed to recover it thanks to snapshots. There is no yesterday in the mirror; this is an inherent flaw of mirror backups. I've seen Hyper Backup on my cousin's external hard drive—it can copy versions. This time, don't let the old machine idle—turn it into a dated warehouse.

first distinguish between two sets: warehouse managers and shipping staff shouldn't install them in reverse

This setup requires two sets to work together, and the names are so confusing they can be confusing. The Hyper Backup Vault installed on the receiving machine is my retired DS220J. It acts as the warehouse manager, only registering receiving goods and not allowing anyone to mess with the shelves. Hyper Backup was installed on the one that shipped. My mom's family just replaced it with a DS220+. DSM comes with it and doesn't need to be installed separately; it handles packing, scheduling, and delivering the goods one by one.

most likely to fall into confusion is searching the source world for Vaults, so there's no need to look. Once you install and start the Vault on the receiving end, when creating a task on the shipping side, it will naturally be selected in the destination list. There's also the opposite pitfall: the receiver only installed the Vault and forgot to start it in the package, and no matter how the account and password were entered on the sender's side, connection failed, and a row of timeouts appeared in the log.

by the way, the DS220j is the entry-level model from 2020. With 512MB of RAM, running a heavy package like Photos is really tough. I switched phones for this back then, but it's more than enough to run Vault. Registering goods is much more brain-saving than looking at pictures.

the receiving end: install the Vault, delete the power plan, and send the dedicated password. Step one

search for Hyper Backup Vault in the kit center, install it, open it, and enable backup services. The process is short. The real effort needed is the last two steps.

the second step, delete the power plan. This machine used to be used as a backup machine, working exactly on time—starting at 3:20 a.m. and shutting down at 4:30 a.m., working 70 minutes a day, saving about fifty yuan a year on electricity bills. Now it's no longer possible; Hyper Backup runs all night, and the warehouse can't shut down. I deleted the power supply plan and switched to regular use. I accepted the electricity bill: 12.5 watts all day, about 60 yuan per hundred kWh a year. If you swap photos of my mom's home, there's a dated foothold—worth it. Step

three: create a dedicated account; don't use admin to receive goods. As usual, I set up a separate account for FamilyMart. I created a dedicated backup account for this DS220J, with permissions only for reading and writing to a shared folder, nothing else. This account is meant to open a public network, with minimum permissions as the bottom line.

there's a hidden pitfall here that almost messed me up: for security, I set up two-step verification for this account, but my mom's home just couldn't connect—Hyper Backup couldn't get through that dynamic code interaction. Synology's solution is to generate a dedicated application password—in the Control Panel, User & Group, Edit This User, and two-step verification section, generate a dedicated password. The shipper fills in this string instead of the login password, and the two-step verification is still enabled.

five steps for shipping: the destination section is the easiest to get stuck

On my mom's DS220+, open Hyper Backup, add the plus sign in the bottom left, then select Data Backup Tasks. For the destination step, select Remote Synology NAS, then fill in three things: my DDNS domain, port, the dedicated account and password I just mentioned. I checked the shared folder for the photo gallery at the end, scheduled for 3:30 a.m. every day, and kept versions using smart settings—keeping hourly settings for 24 hours, daily for a month, weekly for half a year, and monthly for a year. I this set of settings when I matched my cousin's external hard drive . The encryption option was checked too. The client's encrypted password was written down on two sheets of paper—one for the weak current box and one for the drawer. Even a god couldn't save it if it was lost.

the real slot is in the first few slots at the destination. First pitfall: QuickConnect IDs can't be filled. Hyper Backup's remote destination doesn't recognize QuickConnect. The official only two options are either DDNS plus port forwarding, or VPN tunneling. My home happens to have China Telecom's real public network, the I needed to call 10,000 back then, DDNS was already set up, and the tagalong on the router came in handy.

second pitfall: port 6280, not the 5000 you were thinking. Hyper Backup connects to remote Synology via its own independent 6280 port, encrypted transmission is 6281, which is two separate doors from the DSM web backend 5000/5001. The router forwards the usual port mapping, with high-level ports for scanning on the outside and pointing to the internal 6280. There's an even more shady one: starting from DSM 7.2, the authentication port can no longer be changed. Some people use reverse proxies to change ports, directly disrupting remote backups, and forwarding them obediently to the 6280. When the public network port is open, remember to check the logs later. the lesson from that when my router was scanned—dedicated accounts, two-step verification, minimum permissions, all three barriers in place, I wouldn't panic.

I ran seven hours on the first night, then I took two or three minutes a day to

speed. Let me explain this to you first. My mom's photo library, including images and videos, is 96GB in total. Her broadband goes up 30 Mbps, which translates to just over 3 Mbps for uploads. On the first night, she ran all the data from 10 a.m. to 5 a.m. the next day. It's even a bit faster than I expected, because Hyper Backup compresses first and then wives, so photos can't be pressed, but video saves a bit.

things changed from the second night onward. The daily increments were only the changed blocks, tens of trillions, and it took two or three minutes to finish. This is different from the rsync method: rsync scans the entire directory tree every night, checking each timestamp and size. I used to sort errors for this ; Hyper Backup keeps track of itself, only sending the changed blocks to the repository, and also removes duplicates across versions. The same photo is saved as one copy out of ten versions. By the way, during the phone change, I changed the destination for the Rsync task on Feiniu to my mom's new machine. The old link wasn't broken, but each did its own thing.

digging up old issues for real-world testing: Deleted videos are reverted to the version before deletion

and the third week is ready—now it's time to test yourself. My mom deleted a family trip video as a duplicate file, pretending not to see it on my phone, and only started after finishing the backup the next day. She opened Hyper Backup, Restore, and Data, and reverted the version tree by date to the one from the day before deletion. She hooked that video clip and restored it to its original location. After about ten minutes, the video came back, and the new footage she filmed later was completely unaffected.

this interface is exactly the same as the one on my cousin's external hard drive, the Hyper Backup restore process will switch to one and the other to another. There's also an account book on the warehouse side. On the DS220J, you can open the Vault and see how much space each source occupies and how many versions are saved in the destination usage section. When the space is almost full, it will even notify you in advance, which is more reliable than keeping the ledger myself.

conclusion: Who is this set suitable for? Don't force yourself to learn one Synology

To be clear, the premise of having two Synology units is that you truly own both. For those who keep the old machine when swapping in or who have a house in both locations and keep one on each side, this set is made just for you, and the old machine's service life extends for several more years. If you only have one Synology, don't just try to do it: plug in a portable hard drive and run the same Hyper Backup, cousin has been using it for three months; The most important items are on Nut Cloud, free quota is enough to save ; For those who are more particular about it, they use retired hard drives as backup and visit the every six months. Wanting to mirror the entire FamilyMart computer is ABB's job, a different matter . After

reconciliation, here's what my home looks like now: my mom's phone photos are stored on the DS220+, automatically backed up for two years; When I pushed it to my home, the DS220j was the second batch with a date; Plus, her RAID1 mirror on her machine is mutually mirrored, so there's a third copy too. The 3-2-1 red line, the I've been talking about for four years, finally not missing a single one. Here's the finishing order: first install the Vault on the receiving side, delete the power plan, and create a dedicated account; For the shipment end, select the remote destination for the re-creation task, and set the port forwarding to 6280; After running all nights and then deliberately deleting a file to try it out—if you don't get through this step, it's not a good match.