Checking SnapVault transfers

Why to check data replication status

You check transfer status, using the snapvault status command, to make sure SnapVault transfers are taking place as they should.

Note
The descriptions and procedures in this section pertain to SnapVault backup of NetApp filers only. For descriptions and procedures pertaining to SnapVault backup of Open Systems drives and directories, see Setting up SnapVault backup on Open Systems platforms and Managing SnapVault backup of Open Systems platforms.

Checking the status

To check the status of a data transfer and see how recently a qtree has been updated, complete the following step.

Step	Action
1	Enter the following command: snapvault status [-l] [[[filer_name:]qtree_path] ...] [-s] [-c] Options can be one or more of the following: `-l` displays the long format of the output, which contains more detailed information. `-s` displays the SnapVault snapshot basename, status, and schedule for each volume. `-c` displays the configuration parameters of all SnapVault qtrees on the filer. This option can be run only from the secondary storage system. filer_name is the name of the filer for which you want to see the status of SnapVault operations. qtree_path is the path of the qtree or qtrees for which you want to see the status of SnapVault operations. You can specify more than one qtree path.

Step

Action

Enter the following command:

snapvault status [-l] [[[filer_name:]qtree_path] ...] 

[-s] [-c]

Options can be one or more of the following:

-l displays the long format of the output, which contains more detailed information.
-s displays the SnapVault snapshot basename, status, and schedule for each volume.
-c displays the configuration parameters of all SnapVault qtrees on the filer. This option can be run only from the secondary storage system.

filer_name is the name of the filer for which you want to see the status of SnapVault operations.

qtree_path is the path of the qtree or qtrees for which you want to see the status of SnapVault operations. You can specify more than one qtree path.

Result

The filer displays a message showing whether a transfer is in progress, how much data has been transferred, the state of the destination, and how long ago the last successful transfer took place.

If no options or arguments are given, the output includes the fields of information in horizontal format shown in Example 1 below.
If one or more [filer_name:]qtree_path arguments are specified, then status is displayed only for the specified qtrees.
If the -l option is given, the output includes the more detailed information, in vertical format, shown in Example 2.
See the table What the status fields mean, after the examples, for more information about the command output shown in Example 1 and Example 2.
If the -s option is given, the output displays snapshot creation status, as shown in Example 3.
If the -c option is given, current primary storage system configuration parameter settings are displayed, as shown in Example 4.

Example 1:

If you enter snapvault status with no option you see SnapVault qtree relationships involved in the most recent transfer from a primary qtree to a secondary qtree.

filerA> snapvault status

Snapvault client is ON.

Source                   Destination                    State         Lag       Status

filerB:/vol/vol2/qtree3  filerA:/vol/sv_vol/qtree3      Snapvaulted  00:48:24  Idle

Example 2:

The snapvault status -l command and option displays more detailed information on the most recent SnapVault transfer and snapshot activity.

filerA> snapvault status -l

SnapVault client is ON.

Source:                     filerA:/vol/vol2/qtree3

Destination                 filerB:/vol/sv_vol/qtree3

Status                      Idle

Progress:                   -

State:                      SnapVaulted

Lag:                        2:09:58

SnapVault Timestamp:        Thu Jan 31 12:30:01 PST 2002

Base Snapshot:              filerB(0016778780)_sv_vol.59

Current Transfer Type

Current Transfer Error:

Contents:                   Replica

Last Transfer Type:         Scheduled

Last Transfer Size:         1680 KB

Last Transfer Duration:     00:02:08-

Example 3

The snapvault status -s command and option lists all the snapshots scheduled on the primary or secondary storage system. Information includes volume, snapshot basename, current status, and snapshot schedule.

filerA> snapvault status -s

Snapvault server is ON.

Volume          Snapshot      Status               Schedule

------          --------      ------               --------

sv_vol          sv_hourly     Idle                 1@0-23

vol2            sv_weekly     Idle                 8@fri

Example 4

The snapvault status -c command and option lists all the secondary system qtrees, their corresponding primary system qtrees, maximum speed of scheduled transfers, and maximum number of times SnapVault attempts to start a scheduled transfer before skipping that transfer.

filerA> snapvault status -c

/vol/sv_vol/db_qtree1 source=filerB:/vol/db1/s1 kbs=unlimited 
tries=20

/vol/sv_vol/db_qtree2 source=filerC:/vol/db2/s2 kbs=unlimited 
tries=20

/vol/sv_vol/qtree1 source=filerC:/vol/users/qtree1 kbs=10000 
tries=10

/vol/sv_vol/qtree2 source=filerC:/vol/users/qtree2 kbs=10000 
tries=10

/vol/sv_vol/qtree3 source=filerD:/vol/users/qtree1 kbs=10000 
tries=10

/vol/sv_vol/qtree4 source=filerD:/vol/db/db_1 kbs=7000 tries=10

filerA> snapvault status -c /vol/sv_vol/qtree3

/vol/sv_vol/qtree3 source=filerA:/vol/vol2/qtree3 kbs=10000 
tries=10

What the status fields mean

Information fields that SnapVault can display for the snapvault status and snapvault status -l commands are as follows.

Field	Possible values displayed include:
Source	filer:qtree_path--The source is the primary storage system filer and qtree path listed. A dash (-) in this field means that the SnapVault secondary storage destination qtree is not yet initialized through the `snapvault start -x` command.
Destination	filer:qtree_path--The destination is the secondary storage system filer and qtree path listed.
State	Uninitialized--The destination SnapVault secondary storage qtree is not yet initialized through the `snapvault start` command. Snapvaulted--The qtree is a SnapVault secondary destination. Unknown--It is not known what state the secondary system qtree is in; the volume that contains the secondary system qtree could be offline or restricted. Source--This state is reported when the `snapvault status` command is run on the primary storage system. It also appears if `snapvault status` is run on secondary storage systems after the `snapvault restore` command was run on an associated primary storage system.
Lag	hh:mm:ss indicates the time difference between the data currently on the primary system and the latest data stored on the secondary system; that is, the difference between the current time and the timestamp of the snapshot last successfully transferred to the secondary storage system. A dash (-) in this field means that the secondary storage system is not initialized.
Status	idle--No data is being transferred. Transferring--Transfer has been initiated, but has not yet started, or is just finishing. Pending--The secondary storage system cannot be updated because of a resource issue; the transfer is retried automatically. Aborting--A transfer is being aborted and cleaned up. Resyncing--The specified qtree is resynchronizing.
Progress	Shows the number of KB transferred by the current transfer or the restart check point if the status is Idle or Pending.
SnapVault Timestamp	The timestamp of the last snapshot successfully transferred from the primary storage system to the secondary storage system. Note A resynchronization (`snapvault start -r`) may change the base snapshot to a snapshot with a timestamp older than the original base.
Base Snapshot	The name of the base snapshot for the corresponding qtree on the secondary storage system. For qtrees in a SnapVault relationship, the secondary storage side lists the name of the exported snapshot for that qtree on the storage side. A resynchronization (`snapvault start -r`) may change the name of the base snapshot.
Current Transfer Type	Indicates the type of the current transfer: scheduled, retry, resync, update, initialize, store, or retrieve. This field applies only to the destination side.
Current Transfer Error	Displays an error message if the latest transfer attempt failed.
Contents	Indicates whether the contents of the destination volume or qtree in the active file system are up-to-date replicas or are in transition. The field applies only to the destination side. Since a destination is read-only, its contents are always a replica.
Last Transfer Type	Indicates the type of the previous transfer: scheduled, retry, resync, update, initialize, store, or retrieve. This field applies only to the secondary storage side.
Last Transfer Size	Shows the number of KB transferred in the last successful transfer.
Last Transfer Duration	Shows the elapsed time for the last successful transfer. If the transfer failed and restarted, the time includes time waiting to restart the transfer. If a transfer aborted and was retried from the beginning, it includes only the time required for the final successful attempt.
Last Transfer From	This field applies only to the secondary storage side and shows the name of the primary filer and volume or qtree (where the content is transferred from).