ssh password less connectivity exadata

[celladmin]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/celladmin/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/celladmin/.ssh/id_rsa.
Your public key has been saved in /home/celladmin/.ssh/id_rsa.pub.
The key fingerprint is:
55:xx:yy:zz:44:21:d0:29:dc:d0:cf:06:ac:7b:14:c4 celladmin@cel01.xxx.local
The key's randomart image is:
+--[ RSA 2048]----+
|   .oXo.o.  o.   |
|    o Eo   o     |
|     o =. o      |
|    . ..++       |
|     o .S +      |
|    . .  o       |
|     .           |
|                 |
|                 |
+-----------------+

Once the key is generated verify in the folder to see the new id* files..

Now create a new file with entries of all the hostnames which you want to have ssh password less connectivity with

vi cell_group

cel01
cel02
cel03
cel04

After that run the below.. give the password of the user when prompted of the other cells

dcli -g ./cell_group -k
celladmin@cel01's password:
celladmin@cel02's password:
celladmin@cel04's password:
celladmin@cel03's password:
cel01: ssh key added
cel02: ssh key added
cel03: ssh key added
cel04: ssh key added


Repeat the same process in all the storage cells...