Dell EMC XtremIO plug-in considerations and limitations
The following considerations and limitations are applicable:
All the snapshots taken for any volume are read-only. A new re-purpose copy is cloned from the snapshot volume and used for data backup.
The re-purpose clone copy is made only during export. This copy is deleted based on the scheduled deport from NetBackup or a manually run expire operation. This is a thin-provisioned type copy.
The limit for any volume name is 128 characters on the array. In case of a re-purpose copy, the maximum length of the volume name is 128 - (23(NB<unique_21digit_number>) - 9(Repurpose) - 2(Dot notations)) = 94. It is a strict requirement to limit the volume name to 94 characters for successful backup.
We do not recommend to write data to the re-purpose copy created by NetBackup by manually mapping the copy to a host. You can consider using the re-purpose copies created as an individual volume in NetBackup. You are not recommended to use the copies starting with the name
volume_name.NB<unique_21digit_number>.repurpose.Don't refresh the re-purpose copy as this changes the data on the copy by refreshing from the parent volume. For example, if you create a snapshot of volume V1, the protection copy is made using
V1.NB<unique_21digit_number>and the export re-purpose copy is made with the nameV1.NB<unique_21digit_number>.repurpose. Refreshing a re-purpose copy affects backup and restore.