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Fresh install... Sort of.

Posted: 13 Jan 2020 20:00
by txtwincam
I have an existing 11.0.0.4 install that I want to upgrade the MB, CPU, Mem, ect... basically all but the HDD and case. I wasn't sure if the best path here is to install fresh on a new USB stick (embedded) and import the config, or to install fresh and reconfigure from scratch and restore the data from tape. I'm configured as RAIDZ1 over (13) 2TB disks in JBOD mode thru the megaraid controller (for SMART monitoring). Ideally, Id like to import the array into a fresh install, but not sure how to accomplish this. the array is at 85% capacity so its a lot of data to restore from tape.

Any clues?

Re: Fresh install... Sort of.

Posted: 14 Jan 2020 08:53
by raulfg3
best path is to do a fresh install and import your pool ( no data lost).


steps are:
1 - save your actual config file ( non encrypted).
2 - do some screen captures for precaution of your services.
3 - do a fresh install on a new boot medim ( so if something goes wrong, you can allways revert to your actual boot disk).
3.5 consider this time do a fresh ZFSonRoot install ( please read about benefits=viewtopic.php?f=15&t=13650#p84568 )
4 - boot new fresh install and recover your previosly saved config.
5 - revise that all works as expected ( perhaps need to "clear cofig & import disk or sync ZFS webUI with realworld or configure some service.

viewtopic.php?f=16&t=15050
viewtopic.php?f=66&t=12304

Re: Fresh install... Sort of.

Posted: 14 Jan 2020 17:07
by txtwincam
Thanks, Should I export the pool out of 11.0.0.4 before the install? Or just import it after?

Re: Fresh install... Sort of.

Posted: 15 Jan 2020 08:11
by raulfg3
a normal shutdown is enoght, no need to export first.

Re: Fresh install... Sort of.

Posted: 15 Jan 2020 14:00
by txtwincam
Thanks for the guidance. I will follow the path presented once the next version is released.

Re: Fresh install... Sort of.

Posted: 19 Jan 2020 16:27
by txtwincam
One more thought/question. My install is embedded on a 16GB USB 2.0 stick. Would ZFSonRoot have any benefit for me?

Re: Fresh install... Sort of.

Posted: 19 Jan 2020 19:03
by raulfg3
no for USB boot, only usefull for HD/SSD install

Re: Fresh install... Sort of.

Posted: 02 Feb 2020 06:44
by was-armandh
general note re installing to USB "stick"/"thumb drive"
write wear will brick them in a few months if one allows a swap file.
a SSD or USB connected SSD will do much better
most have wear leveling to postpone their demise.
name brand NOS close outs are cheap with more room than needed.
USB adapter cases under $10.

SSD boot is an easy hardware upgrade to avoid future trouble.

Re: Fresh install... Sort of.

Posted: 16 Mar 2020 17:48
by txtwincam
Thanks for the info. I purchased an SSD drive today and will install onto it.