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Looking to upgrade my NAS need advice.
(lemmy.world)
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this post was submitted on 28 May 2025
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No can't just plug the HDDs into the new machine like you would when switching to another synology. You'll have to copy the data to your new machine.
That's not exactly true, synology doesn’t do anything you can’t access from an off the shelf linux (it's your usual mdraid and btrfs). But you better know what you’re doing if you go that route.
I created an Xpenology VM inside my new Unraid server and copied my files with 10Gbps internally.
Correct. Youll need to have a new disk array up and running to copy all your data to first on the new NAS.
Okay then I’d have to buy 4 more 12TB drives to transfer it all over. Good to know.
Since you are looking to build up to 12 bays, what you can do is buy that 4x 12TB drive set now, transfer everything over to the new system, then add the old 12TB drives into the array one-by-one expanding it to an 8x 12TB array. This ensures no data loss, nor wasted drives.
Edit: Also with 8 drives, consider using RAID 6 instead of RAID 5. It's almost the same thing, it just has two redundancy drives instead of one. Depending on how full your current RAID is, you may or may not need to start the new array with 5x 12TB drives instead of 4 due to the lower capacity when using RAID 6.
Yeah that makes sense. Do you have any recommendations on a DIY or non synology specific system?
Not the person you responded to, but personally I just went Truenas scale on baremetal and it worked really well. Currently they also work with docker so setting up additional apps is really easy as well.
For DIY, just about any setup would work fine as long as you put it in a case with lots of bays. Throw 2 or 3 of these in there* and you now have however many ports are on the motherboard (probably 2 or 4) plus 8-12 more ports available via the cards.
*I'm not recommending that specific card, just something that gives you SATA ports on a PCI-E card. Just pay attention to bandwidth bottlenecks on the cards. Here is a table of PCI-E speeds.
Followup; Not as cheap but there are M.2 to SATA cards available too, if your mb has no empty PCIe but do have empty M.2 available.
Might also look at larger drives. When I compared 3.5'' drives then the 24TB is cheaper per terabyte than both 16TB and 12TB. The ones I compared are listed below:
Seagate Exos X24 Harddisk ST24000NM002H 24TB 3.5" Serial Attached SCSI 2
Seagate Exos X24 Harddisk ST16000NM001H 16TB 3.5" Serial ATA-600 7200rpm
Seagate IronWolf Harddisk ST12000VN0008 12TB 3.5" SATA-600 7200rpm
Ah I’ll have to see then. HD isn’t that much of an issue to get. Really the hardware and software to run a new NAS will be the most difficult thing for me. Since it isn’t my expertise and I’m still learning.