Configure replication relationships on FSx for ONTAP file systems

09/28/2023 Contributors

You can find additional information about SnapMirror configuration options in the ONTAP documentation at SnapMirror replication workflow (netapp.com).

Source FSx for ONTAP file system: FsxId00fa9e3c784b6abbb
Source SVM: sapcc-hana-svm
Target FSx for ONTAP file system: FsxId05f7f00af49dc7a3e
Target SVM: sapcc-backup-target-zone5

Peer FSx for ONTAP file systems

FsxId00fa9e3c784b6abbb::> network interface show -role intercluster
            Logical    Status     Network            Current       Current Is
Vserver     Interface  Admin/Oper Address/Mask       Node          Port    Home
----------- ---------- ---------- ------------------ ------------- ------- ----
FsxId00fa9e3c784b6abbb
            inter_1      up/up    10.1.1.57/24       FsxId00fa9e3c784b6abbb-01
                                                                   e0e     true
            inter_2      up/up    10.1.2.7/24        FsxId00fa9e3c784b6abbb-02
                                                                   e0e     true
2 entries were displayed.

FsxId05f7f00af49dc7a3e::> network interface show -role intercluster
            Logical    Status     Network            Current       Current Is
Vserver     Interface  Admin/Oper Address/Mask       Node          Port    Home
----------- ---------- ---------- ------------------ ------------- ------- ----
FsxId05f7f00af49dc7a3e
            inter_1      up/up    10.1.2.144/24      FsxId05f7f00af49dc7a3e-01
                                                                   e0e     true
            inter_2      up/up    10.1.2.69/24       FsxId05f7f00af49dc7a3e-02
                                                                   e0e     true
2 entries were displayed.

FsxId05f7f00af49dc7a3e::> cluster peer create -address-family ipv4 -peer-addrs 10.1.1.57, 10.1.2.7
Notice: Use a generated passphrase or choose a passphrase of 8 or more characters. To ensure the authenticity of the peering relationship, use a phrase or sequence of characters that would be hard to guess.
Enter the passphrase:
Confirm the passphrase:
Notice: Now use the same passphrase in the "cluster peer create" command in the other cluster.

peer-addrs are cluster IPs of the destination cluster.

FsxId00fa9e3c784b6abbb::>  cluster peer create -address-family ipv4 -peer-addrs  10.1.2.144, 10.1.2.69
Notice: Use a generated passphrase or choose a passphrase of 8 or more characters. To ensure the authenticity of the peering relationship, use a
        phrase or sequence of characters that would be hard to guess.
Enter the passphrase:
Confirm the passphrase:
FsxId00fa9e3c784b6abbb::>
FsxId00fa9e3c784b6abbb::> cluster peer show
Peer Cluster Name         Cluster Serial Number Availability   Authentication
------------------------- --------------------- -------------- --------------
FsxId05f7f00af49dc7a3e    1-80-000011           Available      ok

Peer SVMs

FsxId05f7f00af49dc7a3e::> vserver peer create -vserver sapcc-backup-target-zone5 -peer-vserver sapcc-hana-svm -peer-cluster FsxId00fa9e3c784b6abbb -applications snapmirror
Info: [Job 41] 'vserver peer create' job queued

FsxId00fa9e3c784b6abbb::> vserver peer accept -vserver sapcc-hana-svm  -peer-vserver sapcc-backup-target-zone5
Info: [Job 960] 'vserver peer accept' job queued

FsxId05f7f00af49dc7a3e::> vserver peer show
            Peer        Peer                           Peering        Remote
Vserver     Vserver     State        Peer Cluster      Applications   Vserver
----------- ----------- ------------ ----------------- -------------- ---------
sapcc-backup-target-zone5
            peer-source-cluster
                        peered       FsxId00fa9e3c784b6abbb
                                                       snapmirror     sapcc-hana-svm

Create a target volume

You must create the target volume with the type DP to flag it as a replication target.

FsxId05f7f00af49dc7a3e::> volume create -vserver sapcc-backup-target-zone5  -volume PFX_data_mnt00001 -aggregate aggr1 -size 100GB -state online -policy default -type DP -autosize-mode grow_shrink -snapshot-policy none -foreground true -tiering-policy all -anti-ransomware-state disabled
[Job 42] Job succeeded: Successful

Create a SnapMirror policy

The SnapMirror policy and the added rule define the retention and the Snapmirror label to identify Snapshots that should be replicated. When creating the SnapCenter policy later, you must use the same label.

FsxId05f7f00af49dc7a3e::> snapmirror policy create -policy snapcenter-policy -tries 8 -transfer-priority normal -ignore-atime false -restart always -type vault -vserver sapcc-backup-target-zone5

FsxId05f7f00af49dc7a3e::> snapmirror policy add-rule -vserver sapcc-backup-target-zone5  -policy snapcenter-policy -snapmirror-label snapcenter -keep 14

FsxId00fa9e3c784b6abbb::> snapmirror policy showVserver Policy             Policy Number         Transfer
Name    Name               Type   Of Rules Tries Priority Comment
------- ------------------ ------ -------- ----- -------- ----------
FsxId00fa9e3c784b6abbb
        snapcenter-policy  vault         1     8  normal  -
  SnapMirror Label: snapcenter                         Keep:      14
                                                 Total Keep:      14

Create SnapMirror relationship

Now the relation between the source and target volume is defined as well as the type XDP and the policy we created earlier.

FsxId05f7f00af49dc7a3e::> snapmirror create -source-path sapcc-hana-svm:PFX_data_mnt00001 -destination-path sapcc-backup-target-zone5:PFX_data_mnt00001 -vserver sapcc-backup-target-zone5 -throttle unlimited -identity-preserve false -type XDP -policy snapcenter-policy
Operation succeeded: snapmirror create for the relationship with destination "sapcc-backup-target-zone5:PFX_data_mnt00001".

Initialize SnapMirror

With this command, the initial replication starts. This is a full transfer of all data from the source volume to the target volume.

FsxId05f7f00af49dc7a3e::> snapmirror initialize -destination-path sapcc-backup-target-zone5:PFX_data_mnt00001 -source-path sapcc-hana-svm:PFX_data_mnt00001
Operation is queued: snapmirror initialize of destination "sapcc-backup-target-zone5:PFX_data_mnt00001".

You can check the status of the replication with the snapmirror show command.

FsxId05f7f00af49dc7a3e::> snapmirror show
                                                                       Progress
Source            Destination Mirror  Relationship   Total             Last
Path        Type  Path        State   Status         Progress  Healthy Updated
----------- ---- ------------ ------- -------------- --------- ------- --------
sapcc-hana-svm:PFX_data_mnt00001
            XDP  sapcc-backup-target-zone5:PFX_data_mnt00001
                              Uninitialized
                                      Transferring   1009MB    true    02/24 12:34:28

FsxId05f7f00af49dc7a3e::> snapmirror show
                                                                       Progress
Source            Destination Mirror  Relationship   Total             Last
Path        Type  Path        State   Status         Progress  Healthy Updated
----------- ---- ------------ ------- -------------- --------- ------- --------
sapcc-hana-svm:PFX_data_mnt00001
            XDP  sapcc-backup-target-zone5:PFX_data_mnt00001
                              Snapmirrored
                                      Idle           -         true    -