Upgrade path for 9.10.2-U6 to 12.0-U3.1

zimmy6996

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Mar 7, 2016
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I'm interested to migrate my existing FreeNAS 9.10.2-U6 deployment to TrueNAS Core 12.0-U3.1

Some simple background of my FreeNAS deployment ....

- 100GB SSD Boot Drive
- 100GB (100GB x2) Mirror SSD ZIL
- 500GB (250GB x2) Striped SSD L2ARC
- 28 x 3TB Drives, 14 x Mirrored VDEVs Striped
- iSCSI Enabled
- SMB Enabled

There are no plugins or or jails active on my deployment. It's just simple iSCSI for ESX, and SMB for file shares.

Obviously, in order to upgrade, I would shut down all of my VM's, and SMB usage. That said, what is the appropriate upgrade path for an environment like this? I assume I can't just jump from 9.10.2-U6 to 12.0-U3.1. Maybe you can??? Can anyone offer advice on the best path forward in order to complete this? Any concerns? Any pitfalls?
 

sretalla

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Jan 1, 2016
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I assume I can't just jump from 9.10.2-U6 to 12.0-U3.1. Maybe you can???
Your assumption is good, you can't. (although I guess you can always try if you have a good config backup and the install media for the version you're on).

If I understand it correctly, the right order is 9.10.2-U6 to 11 (deal with any jails you may have here... you said you don't have any) to 11.3, then to 12.0-U3.1.

Don't upgrade pools along the way as you won't be able to back out after you do. Only do so at the end when you're confident it's all successful.
 
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