Need help: replace disk is minimal smaller than broken

[thorsten.gehrig]

Hi
i´ve have a new TrueNAS and a ZFS-Mirror pool with 2x 1TB SSD used for Applications.
One of the new SSD (Patriot) is broken - and I´ve ordered another 1TB SSD of a different brand (Samsung).
The new SSD is 931.51 GiB while the old was 953.87 GiB... hence the new is 20 GiB smaller :-(
Only 5 GiB is currently used... so hence a mess...

Is there any defined process for this situation?
May creating a new "Applications2" pool with 1 disk (stripe?), migrate the applications to applicatons2 then "upgrade" the new Application2 to a mirror?
I´m not sure if an upgrade from a 1-disk-stripe to a z1-mirror is possible?
Thoughts? Guidance?

Thank you in advance.
Thorsten

 

[JohnDigital]

So basically you are going to need a larger disk or follow these steps from this posting