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I have several internal disk mounted on the Debian 8.7 server.

mount /dev/sdd1 /media/disk1
mount /dev/sde1 /media/disk2
mount /dev/sdf1 /media/disk3

Now I am trying to export /media via nfs.

/media 192.168.1.0/24(rw,sync,no_subtree_check,insecure,all_squash,nohide,crossmnt)

On the client(Mac) side I am mounting NFS like following

 mount -t nfs -o rw,sync <ip_of_server>:/media nfsmedia

It does mount without any error. It shows the 3 directories as expected, however there is no content in nfsmedia/disk1, nfsmedia/disk2, nfsmedia/disk3 directories.

If I export each disk separately and mount separately on client side, it works.

/media/disk1 192.168.1.0/24(rw,sync,no_subtree_check,insecure,all_squash,nohide,crossmnt)
/media/disk2 192.168.1.0/24(rw,sync,no_subtree_check,insecure,all_squash,nohide,crossmnt)

On client side mount

mount -t nfs -o rw,sync <ip_of_server>:/media/disk1 nfsmedia

This does mount disk1 as expected, will all the contents. However it is not optimal to mount several mountpoints across multiple computers.

Is there a way to export them as a single directory?

Possible/Workaround solution

This seems to be working. unix.stackexchange.com/questions/198590/what-is-a-bind-mount Bind all locally mounted disks to new set of folders and export that single folder via NFS. However not sure if it is the ideal solution for the problem.

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Jigar Patel
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  • This seems to be working. http://unix.stackexchange.com/questions/198590/what-is-a-bind-mount Bind all locally mounted disks to new set of folders and export that single folder via NFS. However not sure if it is the ideal solution for the problem. – Jigar Patel Feb 20 '17 at 22:31
  • You can use LVM. Create one volume group based on three partitions. Or use mdadm to create RAID from these partition tables. – Khirgiy Mikhail Feb 21 '17 at 04:21
  • LVM is not an option in my case, but good idea for future consideration. – Jigar Patel Feb 21 '17 at 05:27

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