migration from 0.72 to 9.2.0.1

[johl]

Hi all,
I write this to share and maybe get some feedback from my migration (so far). I bought a bigger and clean SSD-disk and installed a full NAS4Free installation on a parallell computer. I started to install all the packages i had on the old installation (mysql, php, phpmyadmin, jaws-project, dokuwiki, owncloud etc). When all installation was done and worked, i imported alla the databases from my old NAS and did all preconfigure as the old settings. I did not do the upgrade trick with config-xml file. When all this was up and running on my SSD (/ and DATA partitions), i shutdown both go my computers and installed the new SSD on my old computer. The old SSD was disconnected and i changed some values in BIOS to get right disk for boot. I started the box and everything started up and ran fine. Next i did the clear config and import disks and poked around some there and finished with synchronize the ZFS stuff in that way i found described in this forum. I have not upgraded the ZFS pools yet. I think i'll run all for a few days and then make the upgrade. I also put some more memory in the box, so now it's 8G and my disks has adaX and AHCI-support. Don't know if that's any better...but it's newer...when my ZFS is upgraded i probably will run the ZFS kernel tweak extension. I think will use my old SSD as a ZFS cache device. But i will wait to see if the new installation will run smooth (the old SSD has all of my backup, if i need to reverse to 0.72). I'm so pleased to get a 64-bits system, the NAS4Free and in near future a fresh ZFS system. I noticed on the my way to this point, that i should have done my pool with five disks, instead go four. You live - you learn.

## edit 2014-06-07 ##
I've upgraded the ZFS pool, but only to version 28 (spool upgrade -V 28 <pool>). I'll wait for more info and updates though v5000 and beyond. I noticed (described in other place in the forum) that the 4KB advanced sector was inactivated after import of disks. This ain't any problem and you can check if it's active or not (zdb | grep ashift, if =>12 then it's 4KB). I also ran the ZFS extension tweaker and now the box runs well.

Best, J

My NAS is build with:
4xWD 2TB disks in a ZFS pool
1xWD 3TB disk as backup for snapshots.
1xKingston 180G SSD for / and DATA
1xIntel 80G SSD maybe for ZFS cache