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See the size of a snapshot aka virtual copy

Hate2Register
Occasional Advisor

See the size of a snapshot aka virtual copy

Hello 3par folks

 

Where can i see the size a snapshot has taken in the guu/cli?

I added all the collumns there are in thebut no entry shows any space taken. The snapshots are all 0.000 GiB in size. I created files, edited them and deleted some. But still no size difference shows in the last shapshot.

 

thanks for any help

 

5 REPLIES
Hate2Register
Occasional Advisor

Re: See the size of a snapshot aka virtual copy

We use the 3par Management Console and the new Web base  3PAR StoreServ Management Console. But we cant see the size of a Snapshot in neither of those interfaces. Internet search did bring up following topic that did not solve the question:

 

http://3parug.com/viewtopic.php?f=18&t=186

 

Dennis Handly
Acclaimed Contributor

Re: See the size of a snapshot aka virtual copy

What CLI command did you use?  showvv?

Did you change at least a MB?

Hate2Register
Occasional Advisor

Re: See the size of a snapshot aka virtual copy

This is the output of the showvv command from the cli. We create snapshots every 2h and the system is full productive. So we have rround 100 virtual servers running on the 3par. There are constant modifications from Fileserver, SQL, Proxy, and so on...

 

STRZ1001 cli% showvv
                                                                                     ------Rsvd(MB)------ --(MB)---
 Id Name                         Prov Type  CopyOf          BsId Rd -Detailed_State-   Adm   Snp      Usr     VSize
  1 .srdata                      full base  ---                1 RW normal               0     0    61440     61440
  0 admin                        full base  ---                0 RW normal               0     0    10240     10240
 17 SRRZ1TSM01_d                 tdvv base  ---               17 RW normal             610   512    97135    204800
 21 SRRZ1TSM01_g                 tdvv base  ---               21 RW normal           13853   512  4639780   5721088
 18 SRRZ1TSM01_h                 tdvv base  ---               18 RW normal            1471   512   433693    563200
 19 SRRZ1TSM01_i                 tdvv base  ---               19 RW normal             851   512   224475    307200
 20 SRRZ1TSM01_j                 tdvv base  ---               20 RW normal            1916   512   570002    634880
 16 SRRZ1TSM01_v                 tdvv base  ---               16 RW normal            6025   512  1970023   2097152
  3 VV_Test                      tpvv base  ---                3 RW normal             256   512    22016    614400
 22 VV_VMW_RZ1_DS01              tdvv base  ---               22 RW normal            8532 20096  2296146   5242880
496  VV_VMW_RZ1_DS01.15.04-10.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
500  VV_VMW_RZ1_DS01.15.04-12.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
504  VV_VMW_RZ1_DS01.15.04-14.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
508  VV_VMW_RZ1_DS01.15.04-16.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
512  VV_VMW_RZ1_DS01.15.04-18.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
516  VV_VMW_RZ1_DS01.15.04-20.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
540  VV_VMW_RZ1_DS01.16.04-06.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
544  VV_VMW_RZ1_DS01.16.04-08.00 snp  vcopy VV_VMW_RZ1_DS01   22 RW normal              --    --       --   5242880
 23 VV_VMW_RZ1_DS02              tdvv base  ---               23 RW normal            7119 29184  1814417   5242880
497  VV_VMW_RZ1_DS02.15.04-10.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
501  VV_VMW_RZ1_DS02.15.04-12.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
505  VV_VMW_RZ1_DS02.15.04-14.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
509  VV_VMW_RZ1_DS02.15.04-16.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
513  VV_VMW_RZ1_DS02.15.04-18.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
517  VV_VMW_RZ1_DS02.15.04-20.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
541  VV_VMW_RZ1_DS02.16.04-06.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
545  VV_VMW_RZ1_DS02.16.04-08.00 snp  vcopy VV_VMW_RZ1_DS02   23 RW normal              --    --       --   5242880
 24 VV_VMW_RZ2_DS01              tdvv base  ---               24 RW normal            7000   512  2482088   5242880
 25 VV_VMW_RZ2_DS02              tdvv base  ---               25 RW normal            5615   512  1877744   5242880
205 VV_XEN_RZ1_DS01              tdvv base  ---              205 RW normal             256   512     4096   1048576
206 VV_XEN_RZ1_DS02              tdvv base  ---              206 RW normal             256   512     4096    204800
207 VV_XEN_RZ2_DS01              tdvv base  ---              207 RW normal             128   512      512   1048576
-------------------------------------------------------------------------------------------------------------------
 32 total                                                                            53888 55424 16507903 117373952

 

Another thing that seems very strange. Since we setup the snapshots, the size of the mainvolume is shown as 46TB. It summarizes its own size with all the snapshots taken (8x5TB + 5TB)

 

Can anyone from HP answer how we can see the size of a snapshot? We had an external 3Par engineer in the house, searched the documentation and the internet without any success.

 

Thanks

Sheldon Smith
Honored Contributor

Re: See the size of a snapshot aka virtual copy

VV_VMW_RZ1_DS01 is a thin dedup volume with a virtual size of 5 TiB. Of that, a little under 2.2 TiB is in use.
It has 8 virtual copies. Combined, they are using less than 20 GiB. You can not see the size of an individual snapshot.


Note: While I work for Hewlett Packard Enterprise, all of my comments (whether noted or not), are my own and are not any official representation of the company.
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Hate2Register
Occasional Advisor

Re: See the size of a snapshot aka virtual copy

Thank you very much for the clarification. Just for other users that might find this post in the future. You can see the combined size of all the snapshot in the 3par interface under Provisioning -> Virtual Volumes -> Right klick on the collumns on the top -> Show -> Raw Reserved Copy Size