zfs discuss - Dec 2008 - Upgrade from UFS Sol 10u5 to ZFS Sol 10u6/OS 2008.11[SEC=UNCLASSIFIED]

Hi ZFS gods,

I have a x4500 I wish to upgrade from a SVM UFS Sol 10u5 to a ZFS  
rpool 10u6 or Opensolaris.

Since I know (via backing up my sharetab) what shares I need to have  
(all nfs share - no cifs on this 4500 - YAY) and have organised  
downtime for this server, would it be easier for me to go to Solaris  
10u6 (or opensolaris) by just installing from scratch and re-importing  
the ZPOOL (of course after exporting it before installing the
''new''
os) rather then using luupdate. Then appropriately upgrading the pool  
to the version to match the OS I choose. I am considering Opensolaris  
as I see Sun now do maintenance for 2008.11. I do have OS 2008.11  
running on another x4500 due to the requirement of CIFS shares  
integrated with our AD and apart from a few little bugs is running  
great.

Please let me know your thoughts, I wish to do this ''upgrade''
before
the new year. Happy Holidays! Enjoy Xmas ... hope someone is around  
that has done something like this before, in theory I guess it should  
work, but I have terabytes of data I cannot loose / don''t want to  
restore from tape.

Thanks,
---
Cooper Ry Lees
A boring old UNIX Administrator - Information Management Services (IMS)
Australian Nuclear Science and Technology Organisation

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LEES, Cooper wrote:
>
> Since I know (via backing up my sharetab) what shares I need to
> have (all nfs share - no cifs on this 4500 - YAY) and have organised
> downtime for this server, would it be easier for me to go to Solaris
> 10u6 (or opensolaris) by just installing from scratch and re-importing
> the ZPOOL
If you have spare machine (or spare disk at least) I''d recommend you do
that: install u6 or opensolaris to another disk/machine and import data
zpool afterwards.
> (of course after exporting it before installing the ''new''
os) rather
> then using luupdate. Then appropriately upgrading the pool to the
> version to match the OS I choose.
I suggest you defer zpool and zfs version upgrade for later. That way if
something goes horribly wrong with the new OS you can still use your old
OS to access that zpool.

Regards,

Fajar
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