Yes it can be done. you can modify the shares as you want.

Use the below command to make the changes.

nfs add path client-list [(option-list)]

Add NFS clients that can access the Data Domain system. A client can be a fully qualified

domain hostname, class-C IP addresses, IP addresses with netmasks or length, an IPV6

address, an NIS netgroup name with the prefix @, or an asterisk wildcard for the domain

name, such as *.yourcompany.com. Role required: admin.

An asterisk by itself means no restrictions. A client added to a subdirectory under /

data/col1/backup has access only to that subdirectory.

The options-list is comma or space separated, enclosed by parentheses. If no option is

specified, the default options are rw, root_squash, no_all_squash, and secure.

NFS Options

ro

Enable read-only permission.

rw

Enable read and write permissions (default value).

root_squash

Map requests from uid or gid 0 to the anonymous uid/gid.

no_root_squash

Turn off root squashing.

Note

no_root_squash is the default value.

all_squash

Map all user requests to the anonymous uid/gid.

no_all_squash

Turn off the mapping of all user requests to the anonymous uid/gid (default value).

secure

Require that requests originate on an Internet port that is less than

IPPORT_RESERVED (1024) (default value).

insecure

Turn off the secure option.

anonuid=id

Set an explicit user ID for the anonymous account. The ID is an integer bounded from

0 to 65635.

anongid=id

Set an explicit group ID for the anonymous account. The ID is an integer bounded

from 0 to 65635.

log

The system will log NFS requests. This option may impact performance.