On 2014年05月29日 15:34, Liu Yuan wrote:
On Wed, May 28, 2014 at 08:43:02PM +0800, Ruoyu wrote:
It is useful for users who want to backup or restore only part of
all vdi from cluster-wide snapshot.
Usage and example:
1. save all vdi:
dog cluster snapshot save all /tmp/ss
2. save some specified vdi:
dog cluster snapshot save test0_1_2 /tmp/ss test0 test1 test2
3. load all vdi:
dog cluster snapshot load all /tmp/ss
4. load some specified vdi:
dog cluster snapshot load all /tmp/ss test6 test0 test3
We already give a name test0_1_2 for a snapshot that contain test{0,1,2}, so I
think dog cluster snapshot snap_name would suffice.
'test0_1_2' is just a snapshot name, the format is
dog cluster snapshot save <snap_name> <path> [vdi1] [vdi2] [vdi3] ...
I'd suggest following command:
dog cluster snapshot save snap_name /path # save all the vdi
dog cluster snapshot save snap_name /path vdi0:snap_name,vdi1:snap_name,... #
partially save
I think "vdi1 vdi2 vdi3 ..." is better because I have successfully
created the VDIs named as ',', ':', '_', etc.
$ dog vdi create _ 4M
$ dog vdi create : 4M
$ dog vdi create , 4M
$ dog vdi list
Name Id Size Used Shared Creation time VDI id Copies Tag
, 0 4.0 MB 0.0 MB 0.0 MB 2014-05-29 15:30 1884b 2
: 0 4.0 MB 0.0 MB 0.0 MB 2014-05-29 15:30 1adad 2
_ 0 4.0 MB 0.0 MB 0.0 MB 2014-05-29 15:30 2484e 2
dog cluster snapshot load snap_name /path # load the specified snapshot, be it
all or partial
dog cluster snapshot list /path # list all the snapshot as before
dog cluster snapshot show snap_name /path # show the saved vdis as in format
name snapid snapname
A 1 A_snap1
A 2 A_snap2
B 1 B_snap
C 1 C_snap
Thanks
Yuan
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