| Name | Default value | Allowed values | Description |
| auto.restore | off | on / off | If set to on the system will be restored to the most recent OS backup it can find. It will look at the system.backup.pool option, and if this is not set it will look for a backup in /tmp/. |
| arc.size | 1/2 of Physical RAM | 0-100 | The number in percentage ARC is supposed to use. Requires reboot. |
| clock.utc | off | on / off | If set to on forces hardware clock to be set to UTC. Otherwise localtime is used. |
| cron.enable | on | on / off | Enable or disable the cron service start option during boot. |
| fcheck.rootfs | off | on / off | If set to on the OS will force a root filesystem check during boot. |
| ftp.enable | on | on / off | Enable or disable the FTP service start option during boot. |
| autosync.cluster | off | on / off | Enable or disable the cluster autosync feature. If set to on the system will autosync the config between all nodes in the cluster. |
| cluster.enable | on | on / off | Enable or disable the Cluster services start option during boot. |
| import.all.read-write | off | on / off | If set to on DEGRADED pools will also be imported in read-write mode. Otherwise DEGRADED pools are only imported read-only. |
| exclude.pools | None | Pool name(s) | Pools that should not be started or stopped by ovios. Introduced for the docker image primarily. Multiple pools can be specified inside quotes with space between. "pool1 pool2 pool3". To reset, run: options exclude.pools reset. |
| tftp.enable | off | on / off | Enable / disable the tftp server. |
| force.import | off | on / off | If set to on the system will attempt to force import the pools. Usefull after upgrades or during Live CD sessions. |
| iscsi.debug | off | on / off | If set to on the iSCSI Server will log in debug mode. |
| iscsi.enable | off | on / off | Enable or disable the iSCSI server start option during boot. |
| iscsi.port | 3260 | Port Number | Use a different port number iSCSI will listen to. |
| iscsi.address | None | IP Address | Specify an IP address iSCSI will accept connections to. Must be an existing IP the system already has configured. |
| netbios.debug.level | None | 0 - 10 | Netbios debug level: integer between 0 (disabled) and 10. |
| netbios.enable | off | on / off | Enable or disable NETBIOS to be started when the SMB server starts. |
| nfs.debug | off | on / off | Enable NFS messages debugging. |
| nfs4.domain | None | domainname | Set a domain name for NFSv4. |
| nfs.enable | off | on / off | Enable or disable the NFS server start option during boot. |
| nfs.idmap | off | on / off | Enable or disable the NFS idmap service when NFS starts. |
| nfs.sys.log | off | on / off | If set to on NFS will log to sys.log instead of console. |
| nfs.tcp.disable | off | on / off | If set to on NFS will not use TCP, only UDP. |
| nfs.udp.disable | off | on / off | If set to on NFS will not use UDP, only TCP. |
| nfs.disable.vers | None | 2 / 3 / 4 | Disable specific NFS version(s). If multiple values, enter between quotes. EX: options nfs.disable.vers "2 4". |
| nfs.port | None | Port Number | Specify a port for NFS to listen to. |
| nfs.threads | None | Integer | Specify number of NFS threads. A larger number of threads can improve performance. |
| nis.client.enable | off | on / off | Enable or disable the NIS client start option during boot. |
| nis.server.enable | off | on / off | Enable or disable the NIS server start option during boot. |
| nscd.enable | off | on / off | Enable or disable the NSCD service start option during boot. |
| ntp.enable | off | on / off | Enable or disable the NTP service start option during boot. |
| ntp.servers | None | IP(s) or Server Name(s) | Enter one or more NTP servers. If multiple values, enter between quotes. |
| options.coloured | off | on / off | If set to on the options command's output will be colourized. |
| system.backup.pool | None | Pool name | Specify a pool which will be used to store system configuration backups. |
| sendlogs.from | ovilogs@ovios.org | Email address | Specify a custom email address logs will be sent from. |
| sendlogs.to | None | Email address | Specify one or more email addresses to send logs to. If multiple values, enter between quotes. |
| skipcheck.rootfs | off | on / off | If set to on the root filesystem won't be checked for errors at during boot. |
| skip.import | on | on / off | If set to off the system will import all storage pools during boot. |
| keep.tmp | off | on / off | If set to on the content of the /tmp directory won't be cleared during boot. |
| smb.debug.level | None | 0 - 10 | SMB Server debug level: integer between 0 (disabled) and 10. |
| smb.enable | off | on / off | Enable or disable the SMB server start option during boot. |
| smb.port | None | Port Number(s) | Specify custom ports the SMB server will listen to. If multiple values, enter between quotes. |
| smtp.port | 25 | Port Number | Specify a custom port for the SMTP service. |
| smtp.server | None | IP or Server Name | Specify a SMTP server the system will connect to to send emails. |
| smtp.starttls | FALSE | true / false | Specify whether the SMTP server requires start_tls connections. |
| smtp.user | None | string | Specify the required SMTP user. |
| snmpd.enable | off | on / off | Enable or disable the SNMP service start option during boot. |
| snmptrapd.enable | off | on / off | Enable or disable the SNMPTRAP service start option during boot. |
| ssh.enable | on | on / off | Enable or disable the SSH server start option during boot. |
| ssh.sessions | None | Number | Specify number of allowed SSH sessions over a single connection. Setting to 1 will disable multiplexing. |
| ssh.port | 22 | Port Number | Specify a custom port for SSH to listen to. |
| ssh.allow.root | off | on / off | If set to on the user root can also login via SSH. |
| ssh.timeout | None | Number | Sets a timeout interval in seconds after which the system will send a message to request a response from the client. |
| vbcheck.rootfs | off | on / off | If set to on the system will print verbose messages during root filesystem check at boot time. |
| winbind.debug.level | None | 0 - 10 | Winbind debug level: integer between 0 (disabled) and 10. |