Temp move of dataset to different pool for Drive upgrade.

[LGSONE]

I have a single SSD used for backups of cloud accounts and a testing VM. It needs to be upgraded. I want to move the entire dataset to the raid pool, replace the single SSD with a large model, and move the data set back to the new drive. I did this long ago in the FreeNas 9.x days and have lost that process in my head. The dataset has a zvol and files. Once I get the process to move the dataset to a temp location and move back to the new drive, how is the VM pointed back to the instance in virtualization? Any help would be great. I searched, but I might not be entering the proper verbiage to get this sorted.

TIA
LGS

 

[Jorsher]

Is mirroring the SSD, then detaching the smaller one not an option?

 

[kiriak]

2 years ago I had a Truenas Core system with just one single drive pool that I used to become familiar with TN before selling my Synology.
After a message that the single drive was going to fail I used a process that I found in these forums and migrated the pool to a new drive without using a temp location.
Afterwards I just replaced the drives and run a command on console. It was amazingly easy.
I cannnot find it right now but maybe this is the best way to go?

 

[Ericloewe]

Is mirroring the SSD, then detaching the smaller one not an option?

Don't even need to formally attach it, I'm pretty sure you can zpool repalce a single disk - as long as it remains online, of course, so both need to be attached.

 

[LGSONE]

The server is packed full of drives, or I would just load in the new drive and copy to it. I could try it in a USB enclosure and copy that way but 2TB via usb would be very slow. I have tons of space on the RAID pool, it is just moving of the dataset twice that I am scratching my head on. And then making sure the VM instance works.

 

[Ericloewe]

Well then:

1. Snapshot
2. Replicate to temporary pool
3. Do whatever
4. Replicate back to new pool

Pretty simple overall, just be sure to abuse the -n option to make sure you're getting the results you want. And use the recursive options along the way, too, of course.