Second Datastore NFS (HPE StoreOnce 2700)

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Hi all,

I’m use OpenNebula 5.12v with front-end and node in same physical server. And i have HPE StoreOnce 2700 Storage system. I want to add this storage to opennebula.

Screen Shot 2020-11-23 at 23.33.27
Screen Shot 2020-11-23 at 23.33.271672×185 16.6 KB

sudo mount -t nfs 192.168.X.X:/nas/Share_2 /mnt/nfs

And i create system and image datastore with shared mode. Then create image and system folder inside /mnt/nfs (/mnt/nfs/system, /mnt/nfs/image) .Last, i create symbolic link this folders to /var/lib/one/ and change permissions to oneadmin.

When i create new persistent virtual machine get following errors:

Mon Nov 23 21:45:44 2020 [Z0][TM][I]: ln: Linking /var/lib/one/datastores/122/c520584297741d1db1aae2f5e7e2f8bd in localhost:/var/lib/one//datastores/123/37/disk.0
Mon Nov 23 21:45:44 2020 [Z0][TM][E]: ln: Command " set -ex -o pipefail
Mon Nov 23 21:45:44 2020 [Z0][TM][I]:
Mon Nov 23 21:45:44 2020 [Z0][TM][I]: cd /var/lib/one/datastores/123/37
Mon Nov 23 21:45:44 2020 [Z0][TM][I]: rm -f /var/lib/one/datastores/123/37/disk.0
Mon Nov 23 21:45:44 2020 [Z0][TM][I]:
Mon Nov 23 21:45:44 2020 [Z0][TM][I]: ln -s "/var/lib/one/datastores/122/c520584297741d1db1aae2f5e7e2f8bd" "/var/lib/one/datastores/123/37/disk.0"" failed: + cd /var/lib/one/datastores/123/37
Mon Nov 23 21:45:44 2020 [Z0][TM][I]: + rm -f /var/lib/one/datastores/123/37/disk.0
Mon Nov 23 21:45:44 2020 [Z0][TM][I]: + ln -s /var/lib/one/datastores/122/c520584297741d1db1aae2f5e7e2f8bd /var/lib/one/datastores/123/37/disk.0
Mon Nov 23 21:45:44 2020 [Z0][TM][I]: ln: failed to create symbolic link '/var/lib/one/datastores/123/37/disk.0': Input/output error
Mon Nov 23 21:45:44 2020 [Z0][TM][E]: Error linking do-nebula01:/var/lib/one//datastores/122/c520584297741d1db1aae2f5e7e2f8bd to localhost:/var/lib/one//datastores/123/37/disk.0
Mon Nov 23 21:45:44 2020 [Z0][TM][E]: Error executing image transfer script: Error linking do-nebula01:/var/lib/one//datastores/122/c520584297741d1db1aae2f5e7e2f8bd to localhost:/var/lib/one//datastores/123/37/disk.0
Mon Nov 23 21:45:44 2020 [Z0][VM][I]: New LCM state is PROLOG_FAILURE

In this case, my strategy is true ?
İ wait yours ideas, thanks for helping …