Great, except I want to use all four 6TB disks elsewhere and the end result would leave me with 4x10TB, 1x12TB and 1圆TB. Once that’s done, I can then copy all the data off the temporary 2x10TB and 1x12TB disks to the new Synology DiskStation 1618+. However, I can move all 6 remaining disks across and create a new SHR giving me a bit over 30TB: What that means is, if I take the very slow approach of building up a SHR with just the two 10TB disks, then look to add more disks after, I can’t add a 6TB disk. You can consider adding 1.5 TB and 1 TB drives, but please note that some capacity of the 2 TB drive will remain unused. There is a limitation of SHR which is worth understanding:įor SHR: The capacity of the drive you intend to add must be equal to or larger than the largest drive in the storage pool, or equal to any of the drives in the storage pool.Įxample: If an SHR storage pool is composed of three drives (2 TB, 1.5 TB, and 1 TB), we recommend that the newly-added drive should be at least 2 TB for a better capacity usage.

That leaves me with 2x 10TB and 4圆TB in the old SHR setup. That’ll get me my 30TB to copy everything off while I juggle the rest of the disks. I can get two external 10TB Seagate HDD for $283AU each and use those as temporary space along with the 12TB disk. It’s unavoidable, I’ll need to buy some more disks for temp space. Risky, but that could give me at least the 12TB disk to use as temporary space. I can however, take one disk out and break it’s redundancy while moving data. shrining the volume size and somehow telling it to abandon one of the disks), so I can’t get a disk that way. It isn’t possible to take a disk out of the SHR setup (i.e. Except, I don’t have 30TB of space anywhere.

Copy the data off, move 6 of the drives, create a new SHR, copy the data back and done.

If I had somewhere to just copy 30TB of data to temporarily, it’d be easy.

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