I currently have a bunch of local hard drives, and I've finally saved up enough money to buy a NAS (a DS1019+). So, I need to move the data from my local PC to the NAS, but there's a catch. I also want to move those local drives INTO the NAS (I can't afford to buy new drives).
My existing drives are one 4TB and three 5TB drives, that together contain about 11.4 TB data (see chart below). In order to help me make the migration, and provide room for growth, I have purchased an additional 5TB drive. If I've calculated correctly, those 5 drives (1x4TB, 5x5TB) should give me 19TB under SHR, or 14TB under SHR2.
My plan was to initially set up the NAS with the new 5TB drive, and then move the data from one of my existing drives onto the NAS. When this is complete, I had planned to put this now empty existing drive into the NAS, and repeat the process, until all the drives are moved across.
However, having read the documentation, I see two problems with that:
My existing drives are one 4TB and three 5TB drives, that together contain about 11.4 TB data (see chart below). In order to help me make the migration, and provide room for growth, I have purchased an additional 5TB drive. If I've calculated correctly, those 5 drives (1x4TB, 5x5TB) should give me 19TB under SHR, or 14TB under SHR2.
My plan was to initially set up the NAS with the new 5TB drive, and then move the data from one of my existing drives onto the NAS. When this is complete, I had planned to put this now empty existing drive into the NAS, and repeat the process, until all the drives are moved across.
However, having read the documentation, I see two problems with that:
- If I'm using SHR, I need to start with the smallest drive first, because it seems as though you can't add smaller drives to an SHR array. That's relatively easily solved – I can just move data from my old 4TB drive onto the new 5TB one, and then set up the NAS first of all with the new empty 4TB drive, and then move all the data back onto it.
- But more problematic is that as soon as I put my second drive in, the NAS is going to use that for protection, and my storage is not going to grow. That will prevent me from moving any more data to the NAS. I had thought this wouldn't matter because I could use RAID 0 during set-up, and later convert to SHR, but it seems from the documentation that won't be possible.
Drive | Capacity | Used space |
---|---|---|
Drive E | 4TB (3.63 useable) | 3 TB |
Drive X | 5TB (4.54 usable) | 0.8 TB |
Drive Y | 5TB (4.54 usable) | 3.1 TB |
Drive Z | 5TB (4.54 usable) | 4.5 TB |
Drive N (new drive) | 5TB (4.54 usable) | 0 TB |
Action | Internal Drive Usage at end of action | NAS Configuration at end of action |
---|---|---|
Move Drive X data to Drive Y | E:3, X:0, Y:3.9, Z:4.5, N:0 | 0 drives, 0TB available, 0TB used |
Move Drive E data to Drive X | E:0, X:3, Y:3.9, Z:4.5, N:0 | 0 drives, 0TB available, 0TB used |
Put E Drive into NAS | X:3, Y:3.9, Z:4.5, N:0 | 1 drive, 4TB available, 0TB used |
Move Y data to NAS | X:3, Y:0, Z:4.5, N:0 | 1 drive, 4TB available, 3.9TB used |
Put Y Drive and N Drive into NAS | X:3, Z:4.5 | 3 drives, 9TB available, 3.9TB used |
Move Z data to NAS | X:3, Z:0 | 3 drives, 9TB available, 8.6TB used |
Put Z Drive into NAS | X:3 | 4 drives, 14TB available, 8.6TB used |
Move X data to NAS | X:0 | 4 drives, 14TB available, 11.6TB used |
Put X drive into NAS | 5 drives, 19TB available, 11.6TB used |