Which ReadyNAS models run OS4

Funkback wrote:
When contacting support I was recommended to replace the chassis to my ReadyNAS NV+ v1 with a suitable replacement. The requirement was that the unit runs OS4. Which ones is he talking about? I can't find that info anywhere.

"OS4" means the firmware family.

v1 platforms (sparc based) run 4.1.x firmware. That includes NV+ v1, duo v1, and several rack-mount models

The ultra and pro families (x86) run 4.2.x firmware.

Both 4.1.x and 4.2.x are considered OS4. However, you can't migrate 4.1.x disks to 4.2.x systems (or vice versa).

v2 platforms (arm based) run 5.x.x firmware. That includes the NV+ v2 and Duo v2. I guess that's OS5, though generally we don't use that phrase here very often.

The new NAS lines (launched 2013) all run OS6 (6.x.x firmware). That includes the RN100, RN300, RN500, and RN700 products.

OS4 and OS5 products are all end-of-life, though you can still find some new ones in the distribution channels. What drives the requirement to replace the NAS with an OS4 device?

Well I'd like to be sure that the shell i buy can run the disks in my ReadyNAS NV+ v1. I guess that's what You call migration. I just got offered a replacement of the PCU from support, but it seems to be a good idea to have a spare as I have had issues with two cabinets before I had any issues w, the disks.

Even the entry level RN104 is 3x faster than the NV+ (and any of the other sparc units).

I'd take the PSU, and once the NAS is running again I'd get a new OS6 unit and copy the data over to it via frontview backup. Then I'd use the OS6 model as my main NAS and use the NV+ for backup.