Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-07-21 Thread Tim Humbert
How did you handle your IP address? Since it would have changed correct?
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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-07-02 Thread Nicolas Dorfsman

Le 30 juin 2011 à 21:26, Tim Humbert a écrit :

 HI I'm attempting something like this and I wondered how your plan worked out?

Works great



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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-06-30 Thread Tim Humbert
HI I'm attempting something like this and I wondered how your plan worked out?
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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-06-22 Thread marria
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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-05-02 Thread LaoTsao
It should work, but keep in mind
Zfs is not build for shared by two host, but with zpool controlled by host1 one 
can force imported to host2 resulting in corrupted zpool 


Sent from my iPad
Hung-Sheng Tsao ( LaoTsao) Ph.D

On May 2, 2011, at 1:09 AM, Steven Sim unixan...@gmail.com wrote:

 Hello All;
 
 I have been asked to create a zone on a shared LUN which will enable us to 
 detach and attach the zone onto another system (exactly same hardware 
 architecture).
 
 So I have create a ZFS Pool and specified the zonepath to be on root 
 filesystem of that pool
 
 e.g.
 
 zfs create -m /zones/webzone webpool san_disk
 
 The above creates a ZFS pool called webpool and mounts to /zones/webzone.
 
 I have then in zonecfg specified the following
 
 zonecfg:webzone  # zonecfg -z webzone
   
 webzone: No such zone configured  
 
 Use 'create' to begin configuring a new zone. 
 
 zonecfg:webzone create   
 
 zonecfg:webzone set zonepath=/zones/webpool  
 
 zonecfg:webzone set ip-type=exclusive  
 .
 .
 .
 
 Upon a need to detach, I will shutdown the zone and detach as follows ..
 
 # zoneadm -z appzone detach
 
 And then deport the ZFS Pool webpool
 
 #zpool deport webpool
 
 On the other system, I would then
 
 #zpool import webpool
 
 And start the Zone (assuming of course the zone XML file has already been 
 imported and created on the 2nd node).
 
 Is the above the best way to do things?
 
 Warmest Regards
 Steven Sim
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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-05-02 Thread Steven Sim
Frank;

Firstly, thanks very much for the pointers!

Is there a way to set cachefile=none in a zpool that has already been
created?

I also googled the -u/-U option and thanks very much for the tip!

Two questions;

Firstly, can I create another filesystem (dataset) within the webpool e.g.
say webpool/webdata and assigned it as a dataset to the webzone? Would that
be considered a bad practice as it is a form cascading mount?

Warmest Regards
Steven Sim

On Mon, May 2, 2011 at 3:06 PM, Frank Batschulat 
frank.batschu...@oracle.com wrote:

 On Mon, 02 May 2011 07:09:12 +0200, Steven Sim unixan...@gmail.com
 wrote:

  I have been asked to create a zone on a shared LUN which will enable us
 to detach and attach the zone onto another system (exactly same hardware
 architecture).

 So I have create a ZFS Pool and specified the zonepath to be on root
 filesystem of that pool

 e.g.

 zfs create -m /zones/webzone webpool san_disk


 you want this:

 zpool create -o cachefile=none -m /zones/webzone webpool /dev/dsk/cXtXdX


  The above creates a ZFS pool called webpool and mounts to
 /zones/webzone.

 I have then in zonecfg specified the following

 zonecfg:webzone  # zonecfg -z webzone
 webzone: No such zone configured
 Use 'create' to begin configuring a new zone.
 zonecfg:webzone create
 zonecfg:webzone set zonepath=/zones/webpool
 zonecfg:webzone set ip-type=exclusive
 .

 Upon a need to detach, I will shutdown the zone and detach as follows ..

 # zoneadm -z appzone detach

 And then deport the ZFS Pool webpool

 #zpool deport webpool


 you want:

 zpool export webpool


  On the other system, I would then

 #zpool import webpool


 then do:

 zoneadm -z appzone attach -u/-U


  And start the Zone (assuming of course the zone XML file has already
 been imported and created on the 2nd node).

 Is the above the best way to do things?


 sure. that should work reasonably well.

 --
 frankB

 Solaris Core OS Development, Zones Team

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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-05-02 Thread Steven Sim
Lao Tsao;

It is not my intention to do a concurrent mount.

Instead one system will relinquish the zone and pool gracefully and the
other system will import it.

Only upon a primary system failure, will the second system do a force
import. (it's a form of poor man cluster).

Warmest Regards
Steven Sim
Principal Systems Pte Ltd (Singapore)

On Mon, May 2, 2011 at 5:44 PM, LaoTsao laot...@gmail.com wrote:

 It should work, but keep in mind
 Zfs is not build for shared by two host, but with zpool controlled by host1
 one can force imported to host2 resulting in corrupted zpool


 Sent from my iPad
 Hung-Sheng Tsao ( LaoTsao) Ph.D

 On May 2, 2011, at 1:09 AM, Steven Sim unixan...@gmail.com wrote:

 Hello All;

 I have been asked to create a zone on a shared LUN which will enable us to
 detach and attach the zone onto another system (exactly same hardware
 architecture).

 So I have create a ZFS Pool and specified the zonepath to be on root
 filesystem of that pool

 e.g.

 zfs create -m /zones/webzone webpool san_disk

 The above creates a ZFS pool called webpool and mounts to /zones/webzone.

 I have then in zonecfg specified the following

 zonecfg:webzone  # zonecfg -z
 webzone

 webzone: No such zone
 configured

 Use 'create' to begin configuring a new
 zone.

 zonecfg:webzone
 create

 zonecfg:webzone set
 zonepath=/zones/webpool

 zonecfg:webzone set ip-type=exclusive
 .
 .
 .

 Upon a need to detach, I will shutdown the zone and detach as follows ..

 # zoneadm -z appzone detach

 And then deport the ZFS Pool webpool

 #zpool deport webpool

 On the other system, I would then

 #zpool import webpool

 And start the Zone (assuming of course the zone XML file has already been
 imported and created on the 2nd node).

 Is the above the best way to do things?

 Warmest Regards
 Steven Sim

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Re: [zones-discuss] Solaris Zones on ZFS Filesystem or Dataset

2011-05-02 Thread Paul Kraus
On Mon, May 2, 2011 at 6:23 AM, Steven Sim unixan...@gmail.com wrote:

 Firstly, can I create another filesystem (dataset) within the webpool e.g.
 say webpool/webdata and assigned it as a dataset to the webzone? Would that
 be considered a bad practice as it is a form cascading mount?

You *can* but you *shouldn't*.

In general, and I don't recall if I have seen a Best Practice on
this or not, if you are using a zpool for multiple datasets for an NG
Zone you should not use the dataset that is at the root of the zpool,
but build child datasets. The issue is not necessarily ZFS figuring
out how / when to mount the dependent datasets, that works fine, it is
the interaction with both the Zones infrastructure and Live Upgrade
(if you are going to ever do any of that). I have had all sorts of odd
issues with hierarchical zfs datasets and NG Zones and LU.

The layout I have been using, and have not had any issues with Live
Upgrade or patching, is the following:

zpool mountpoint=none
zpool/zfs(zone root) mountpoint=/zones/fred/root (where fred is the zonename)
zpool/zfs(application) mountpoint=/zones/fs/fred/foo and a lofs
mount into the NG Zone
zpool/zfs(data) mountpoint=/zones/fs/fred/bar and a lofs mount into
the NG Zone
etc.

The above came about after many, many different configurations were
tried (and most failed). We adopted NG Zones before they were
supported by LU, and rolled out NG Zones on ZFS before that was
supported by LU. A long, hard path to where we are now.

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- Senior Systems Architect, Garnet River ( http://www.garnetriver.com/ )
- Sound Coordinator, Schenectady Light Opera Company (
http://www.sloctheater.org/ )
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