Re: [zfs-discuss] Why root zone can't be on ZFS for upgrade ?
This is an old discussion but maybe someone could help me clarify a couple of things. Having not known taht zone root file systems can't be ZFS, we built several of these zones in our production environment. We are running Solaris 10 8/07. We now see that Zone roots are not supported on ZFS file systems. I would like to get the following answered, if possible. 1. What file systems can be used for the Zone root file system? 2. Will the supported file system not have the same problems as ZFS in the future? 3. If we continue using ZFS as the root file system, and we run into upgrade problems in the future, would be be able to do a dump of the zone root from ZFS to the correct file system that is supported by zones? Thanks in advance, Luke This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] Why root zone can't be on ZFS for upgrade ?
On Wed, May 7, 2008 at 9:59 AM, Luke Schwab [EMAIL PROTECTED] wrote:
This is an old discussion but maybe someone could help me clarify a couple of
things.
Having not known taht zone root file systems can't be ZFS, we built several
of
these zones in our production environment. We are running Solaris 10 8/07. We
now see that Zone roots are not supported on ZFS file systems.
I would like to get the following answered, if possible.
1. What file systems can be used for the Zone root file system?
Currently, UFS.
2. Will the supported file system not have the same problems as ZFS in the
future?
Not likely, see below.
3. If we continue using ZFS as the root file system, and we run into upgrade
problems in the future, would be be able to do a dump of the zone root from
ZFS to the correct file system that is supported by zones?
I don't see any reason that would not work.
Digging in a little bit deeper, the reason that Zone Root FS
is not supported on ZFS is the problem of OS upgrades. When you do an
OS upgrade you are booting off of install media and running off of a
Mini-Root that is loaded in RAM. Currently the Mini-Root does not
include ZFS (or MPxIO, so SAN devices with multiple paths are out as
well). But, if you do a Live Upgrade instead of a regular offline
upgrade, you should be OK.
NOTE: I have not tried this yet (but it is an my agenda as we
want to put *all* of a zone on ZFS), but is based on my understanding
of how OS installs and upgrades, and ZFS work as well as conversations
with technical people at Sun. The unofficial recommendation I got was
that as long as you understand the limitations, go right ahead and use
ZFS for all of the Zone's FSes. Once I complete lab testing here, I
plan on posting results back here and to the zone-discuss lists.
--
{1-2-3-4-5-6-7-}
Paul Kraus
- Facilities Coordinator, Albacon 2008
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[zfs-discuss] Why root zone can't be on ZFS for upgrade ?
Hi, Something is unclear in Solaris containers and Solaris ZFS docs Two extracts : http://docs.sun.com/app/docs/doc/819-5461/6n7ht6qsm?q=zonea=view Consider the following interactions when working with ZFS on a system with Solaris zones installed: A ZFS file system that is added to a non-global zone must have its mountpoint property set to legacy. A ZFS file system cannot serve as zone root because of issues with the Solaris upgrade process. Do not include any system-related software that is accessed by the patch or upgrade process in a ZFS file system that is delegated to a non-global zone. http://docs.sun.com/app/docs/doc/817-1592/6mhahuop2?a=view 4. Set the zone path, /export/home/my-zone in this procedure. zonecfg:my-zone set zonepath=/export/home/my-zone Do not place the zonepath on ZFS for this release. I can't understand why the upgrade process need to have non-global root zone on anything else than zfs. Does the boot cdrom can't mount ZFS volumes ? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
