How to snapshot zfs volume

Hi All,
did anyone have expereience with ZFS volume snapshot and clone? what I am doing here is: create a zfs volume and present it as root disk to LDOM guest domain. I like to have the flexibility to snapshot and clone the volume before any maintenance. We have tested using image files already. We are comparing performance and maintenance complexity of using both image file and zfs volume.
Any suggestion is welcome.
Thanks,

Thanks! could you please provide more details? zfs snapshot of file system is straightforward. But to snapshot volumes (which underline are 0 & 1s), it does not seem to be that easy. FYI, the zfs volume is only partitioned inside guest domain. From ldom controller domain, prtvtoc shows only one slice. That means inside LDOM controller domain, this volume just looks like raw device.

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I have a T2000 (sol10 8/07), OBP 4.27.7, SUNWldm 1.0.1, zfs version 4 that post os patching (using the Sept 08 Recommended patch cluster) now cannot use zfs volumes as virtual disks. Files on zfs filesystems used for boot devices however work fine (ie the ZFS for boot disk setup as described in the admin guide). Whenever I try and "bind-domain" on a guest domain using a zfs volume I see the following in /var/adm/messages on the primary domain...
Sep 3 15:16:56 isdsyddev13 specfs: [ID 853503 kern.notice] NOTICE: spec_getpage called for character device. Check any non-ON consolidation drivers
Sep 3 15:16:59 isdsyddev13 last message repeated 25903 times
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root@isdsyddev13# ldm ls -l itgsyddev11
NAME STATE FLAGS CONS VCPU MEMORY UTIL UPTIME
itgsyddev11 inactive ----- 4 4G
VARIABLES
auto-boot?=false
boot-device=vdisk
NETWORK
NAME SERVICE DEVICE MAC
vnet0 primary-vsw0 network@0 00:14:4f:f8:85:1c
DISK
NAME VOLUME TOUT DEVICE SERVER
vdisk0 vol9@primary-vds0 disk@0
vdisk1 vol2@primary-vds0 disk@1
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vol2 /dev/zvol/rdsk/isdsyddev13zp_loc/itgsyddev11-optbmc2
vol9 /isdsyddev13zp_loc/itgsyddev11/bootdisk-fullos
subset of zfs output below. The os boot files are clones of a snapshot.
root@isdsyddev13# zfs list
NAME USED AVAIL REFER MOUNTPOINT
isdsyddev13zp_loc 142G 53.5G 79.5K /isdsyddev13zp_loc
isdsyddev13zp_loc/boot-images 20.0G 53.5G 20.0G /isdsyddev13zp_loc/boot-images
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isdsyddev13zp_loc/itgsyddev11 645M 53.5G 20.0G /isdsyddev13zp_loc/itgsyddev11
isdsyddev13zp_loc/itgsyddev11-optbmc2 25.4G 58.0G 21.2G -
isdsyddev13zp_loc/itgsyddev11-optbmc2@20080424 4.21G - 18.6G -
Note that if I remove vdisk1 from the guest domain, bind-domain works fine, no issues. So this is an issue just with the zfs volumes used as virtual disks. I also created a new zfs volume, added it to the primary-vds0 and the guest domain. However on bind-domain, same error/issue.
Patches applied from the patch run below...
119812-06
120272-21
127959-02
137017-03
125166-11
119783-06
125184-07
119254-57
120222-28
120222-29
128306-05
122911-13
120292-02
123590-09
119313-21
119059-44
124630-17
120410-29
120094-21
118712-22
127737-02
136892-01
125539-04
137019-02
119042-11
127922-04
138159-01
121004-04
119090-26
127853-02
120830-06
137032-01
137093-01
123611-04
137871-01
136998-04
127755-01
125891-01
127127-11
138068-01
137289-02
137111-03
138291-01
126133-04
138075-02
125551-02
128342-01
128000-01
128294-02
127884-01
128328-01
126206-04
124393-06
119757-12
137321-01
121095-02
119810-05
120543-11
125378-05
128300-03
120201-05
125719-12
137080-01
136882-01
125731-02
121308-12
Any help appreciated.

I am not using ldom version 1.0.3, I'm using version 1.0.1 as per the original post
root@isdsyddev13# pkginfo -l SUNWldm
PKGINST: SUNWldm
NAME: Logical Domains Manager
CATEGORY: application
ARCH: sparc.sun4v
VERSION: 1.0.1,REV=2007.08.23.10.20
BASEDIR: /
VENDOR: Sun Microsystems, Inc.
PSTAMP: dt90-19120070823102022
INSTDATE: Dec 10 2007 14:07
STATUS: completely installed
FILES: 38 installed pathnames
6 shared pathnames
12 directories
23 executables
20860 blocks used (approx)

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How to snapshot zfs volume

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