# Guidelines for Adding Subclient Content

Review the following guidelines before defining subclient content.

## Guidelines

- Regular expressions can be used to select volumes for the subclient.

- Wildcards cannot be used to select subdirectories within the volumes.

  For example, for vendors with volumes that are preceded by /vol, adding /vol/[A-L]* will backup all volumes that start with the letters A through L. For vendors with volumes that are not preceded by /vol/, adding /[A-L]* will backup all volumes that start with the letters A through L. Subclient content with regular expressions that are not volume paths will be treated as non-regular expressions. For detailed information about using wildcards to define subclient content, see Supported Wildcards for NDMP.

- Subclient content is case-sensitive.

## Content Format and Browse Support

The following table contains some examples of the subclient content format for some (but not all) supported NAS vendors.

Vendor | Details | Subclient Content Format | Example Subclient Content | Browse for Subclient Content
--- | --- | --- | --- | ---
Hitachi | No root volumes are shown in the drop down list. Type the full path of the root volume. | /mount_point/ volume_name | /mnt/FS1 | Not supported
Hitachi NAS (VSP One File) | The root volume is a combination of a descriptor of the path and the volume name. | /__VOLUME__/file system name/path in the file system | /__VOLUME__/FS1/dir1 /__VOLUME__/FS1 /__VOLUME__/[A-L]* /__VOLUME__/FS? | Supported Note Because the Hitachi NAS (VSP One File) filer does not have an NDMP browse extension, you must add the Hitachi NAS (VSP One File) file server to Array Management using credentials with the proper permissions.
Huawei | To obtain the corresponding file system ID for a particular file system name, in the Huawei OceanStor DeviceManager, go to File System properties. | /file system ID/path in file system | /filesystem0/dir1 /filesystem2/dir2/data /filesystem* | Not supported
Dell EMC VNX / Celerra/VNXe/Unity/PowerStore | The root volume is the mount point created for a volume. For Celerra tape silvering, specify the source path of the replication that was created from the Celerra Management Console or command line. Append .ts to the path name. | /Virtual Data Mover/File System Name/path in file system | /dept1_vdm1/filesys_2018_team1 /dept1_vdm1/filesys_2018_team1/subdir /dept1_vdm*/filesys_2018* /filesys_dept* /sourcefs/.ts | Not supported
Dell EMC Isilon/PowerScale | Wildcards for Dell EMC Isilon/PowerScale are only supported at the last level of the backup path. To support wildcards in subclient content, you must perform a snap at the parent level. For example, if the backup path is /ifs/myvol/dir1/tmp*, the snap is taken at /ifs/myvol/dir1 directory. If the backup path is /ifs/Test*, snap is taken at /ifs. | /ifs/path in the file system | /ifs/dir1 /ifs/dir2/data /ifs/dir3/file* | Supported Note Because the Dell EMC Isilon/PowerScale filer does not have an NDMP browse extension, you must add the Dell EMC Isilon/PowerScale file server to Array Management using credentials with the proper permissions.
NetApp 7-Mode | The root volume is the mount path of each volume. | /vol/volume_name | /vol/vol0 /vol/vol1/datadir /vol/[A-L]* | Supported
NetApp Cluster Mode (C-Mode) |  | /Vserver_name/volume_name | /dept1_vserver1/volume1 /dept1_vserver2/volume1 /dept1*/volume* | Supported Note To browse for subclient content on NetApp C-Mode file servers, you must do one of the following: Add the NetApp C-Mode file server to Array Management. Ensure you have NDMP credentials and NDMP extension 0x2050 is enabled on the file server using the command: `vserver services ndmp extension` Absolute path is not supported for NetApp.
Oracle ZFS | The format for the subclient content depends on the type of backup operation. To perform a block backup, the subclient content path must be the Oracle ZFS Storage Appliance ZFS path to the project, share, or LUN. For detailed information about the formats to use, go to the Oracle document NDMP Implementation Guide for the Oracle ZFS Storage Appliance, NDMP Formats. | /export/volume_name Block backups: /pool/local/project | /export/Volume* Block backups: /pool001/local/project* | Not supported

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