Cannot enable SSH Service on Volume

What version of ReadyNAS OS?

You don't need SSH access to install Plex. Plex is listed under Available Apps

I have OS 6.1.2
Uploaded Plex in the Apps tab, Rebooted the unit but nothing is showing under "installed Apps" nor "available apps"

Odd. Is Genie enabled? If so, try disabling it and then see if you can see apps listed under Available Apps.

Thanks for all the suggestions, mdgm. Appreciate your time :-)
Genie isn't enabled. I have tried enabling Genie , but ater the " wait 5 to 10 second message", it fails saying "the other installation is already in progress".
What I did in early 2013, was to remove Flex-Raid from across my two 3gb Drives, and create a RAID 0 Volume out of the drives. I probably screwed it up.
I think this unit has itself in a knot. Perhaps the best thing is to try & loan 5Gb of diskspace, copy my movie collection off and do a proper reset. But .....If I could just get to the command prompt ......WaLaLa :-)

I have the same problem. I am trying to figure it out.

Is this also on a 104? You get the same error?

Yeah, Hockey ...... This RN104 has much to be desired in it's implementation of the O/S. Very flaky !!
Especially in the fact that it refuses to recognise certain brands of Hard Disk. But then, I went for Cheap ...... and this is what you get.
If you do find out anything, PLEASE let me know :-)

What is your data volume called?

Sorry that I took so long to reply - big football weekend!

Anyways, I have a ReadyNAS 314 with firmware 6.1.2 setup with RAID 6 for double redundancy. I have recently done a "scrub" and a "defrag" on my disks, but with no luck.

When I go to "System" -> "Services" and try to turn on "genie+ Marketplace" or "Antivirus" (or, I assume, any other service like SSH - but I have not tried SSH specifically yet), I get the error "Cannot start service without volume". I assume that the volume is not detected properly.

However, I have a volume. If I go to "System" -> "Volumes", I can see my volume called "main". I can ask the system to scrub and defrag. I can also ask for a summary and see the information on each of the four disks, for example Disk 1x1:
ID: sda, Model: ST2000NM0011, ... Volume State: NEW, ...Disk State: ONLINE, Channel 1.

I really do not want to set back to factory default...

Hi guys...... I've got 2 Volumes, comprising two Disks each. Vol1 = Pair of WD Red Labels - RAID 0 Vol2 = Pair of Seagate ST's - JBOD (Not identical disks, but both were recognised by the O/S)