Discovering Dell EMC PowerScale and Dell EMC Isilon Storage Systems by using SSH
EMC Isilon storage systems are discovered using SSH. The appropriate storage pattern is triggered on each host running an Isilon ONeFS operating system. The Isilon commands (both cluster-specific and node-specific) are executed on each host to retrieve the cluster/node details. Then, each cluster/node is modeled in BMC Discovery. The storage discovery pattern continues discovery of the storage entity by using further SSH requests to discover the associated storage components.
Prerequisites
- SSH credentials valid for the storage device. These should be entered as host credentials. Each node of the cluster should be scanned in the same way as a Linux server would be. BMC Helix Discovery will recognize the custom Linux and create an EMC Isilon storage cluster.
- Several commands need sudo privileges as follows:
- /usr/bin/isi_nodes
- /usr/bin/isi status*
- /usr/bin/isi devices*
- /usr/bin/isi_radish
- /usr/bin/isi storagepool
- /usr/bin/isi smb shares
- (sudo privileges required) /usr/bin/isi quota quotas list
- /usr/bin/isi nfs exports
- /usr/bin/isi version
- /usr/bin/isi zone zones list
To enable sudo, follow the steps:
- Go to Admin > Discovery Platforms > FreeBSD > init edit.
- Navigate the shell script to where it defines PRIV_RUNCMD.
- Change the body of the function to /usr/local/bin/sudo "$@" (assuming sudo is located in/usr/local/bin/sudo).
The user with read-only role can be created by using the following commands:
- isi auth users create USERNAME --enabled yes --password PASSWORD
- isi auth roles create RO_ROLE_NAME
- isi auth roles modify RO_ROLE_NAME --add-priv-ro=ISI_PRIV_LOGIN_SSH --add-user= USERNAME
Then, update the sudo file by using isi_visudo and add the following line:
USERNAME ALL=(ALL) NOPASSWD: ALL
Supported platforms and versions
- S-Series, X- X-Series, and NL-Series.
- EMC Isilon OneFS operating system version 6.5, 7.0, 7.1, 7.2, 8.x.
Vendor-specific Information
No known vendor-specific information.
Discovered storage information
Limitations
No known limitation.
Documentation link