Current limitations of the SmartSync feature include:
- A failover and failback option is not available. An option to allow writes on the target cluster is also not available. However, the dataset is available for read and write on copy policies once the replication to the target platform is complete if the --copy-create-dataset-on-target=false option is specified.
Note: Workflows with constantly changing data require a large dataset transfer with a copy policy. Consider using a pull policy as an alternative, offloading the resource consumption to the target cluster, assuming network bandwidth is available.
For repeat-copy policies, enabling read and write on the target platform will be available in a future release. However, SmartSync for OneFS uses SnapshotIQ for creating the dataset snapshot. If required, the files on the target platform may be copied out of the snapshot for access.
For example, run the isi snapshot list command on the target cluster to find the required dataset name. Next, use ls to list the contents of the snapshot, and copy the required file out of the snapshot, as shown in the following snippet:
OneFS94-S2-1# isi snapshot list
ID Name Path
------------------------------------------------------------
2 isi_dm_snap_dsr_1_1645112651 /ifs/data/test2
.
.
38 isi_dm_snap_dsr_19_1645538704 /ifs/data/repeat-copy
------------------------------------------------------------
Total: 23
OneFS94-S2-1# ls /ifs/.snapshot/isi_dm_snap_dsr_19_1645538704/data/repeat-copy
hello-repea1t.txt
OneFS94-S2-1# cp -c /ifs/.snapshot/isi_dm_snap_dsr_19_1645538704/data/repeat-copy/hello-repea1t.txt /ifs/data/test.txt
- PowerScale clusters in compliance mode are not supported.
