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Ultra4 (OS4) is dead what's the best way to get disks back online ?
Dear All, Not sure what would be the best place for this discussion, but since the easiest way for me will be to buy a new unit I think HW compatibility is the right starting point. A short...
No, the Ultra 4 does not use the supply listed by StephenB, the Ultra 6 and 6-bay Pro models do.
The NV+, NVX, and Ultra4 all use the same power supply, with the pin-out as shown here: http://www.readynas.com/download/archive/pdf/ReadyNAS_PSU_pinout.pdf. I assume the 4-bay Pro's do as well, but I've never had one. It appears to me to be nothing more than a differently wired Mini ITX supply, which is readily available for under $40. The ratings on the one from my parted out NVX are +3.3V @ 8A, +5V @ 8A and +12V @ 7A. It even lists the -5 and -12V's on the label, which even more leads me to believe it's just a specially wired standard supply with the fan removed (even has a spot for the removed fan, and my original NV did have the fan installed.. a 150W supply should be more than enough, and NewEgg currently has a $10 rebate on a $39 one.
Before you are sure it's the power supply, you could do the "paper clip test" on the existing one. The on/off being a "soft" one, a motherboard issue could cause failure to power on, too. The voltages may not be quite right with no load, but it can be of some help in verifying the issue is the power supply. If it is the supply, you can use this info to do a temporary external install of an ATX supply just for files recovery or you could try the Mini ITX one.
Dear mdgm-ntgr thank you for your reply. Good idea to update to latest firmware using spare disk - thanks for the hint.
With respect to the process I'm a little bit concerned about "boot normally". That would mean that OS4 (which is on system partions) has drivers to support new chipet + SATA + raid,e.t.c, or are you saying that kernel is actually on the flash rather than on system partiontion ? Also have you tried this process yourself ? 104 is around 100$ while 314 is more like 400-500$ range so I'd like to make sure it works before I make such investment.
Also can you clarify why104 is not an option ? I haven't checked OS6 but OS4 does use mulptiple partitions like /dev/md0 for system (usually RAID1 if I don't make a mistake) and /dev/mdX for data which is RAID5 in my case. So my expectation was that after pluging disks to 104 I should be able to do "reinstall OS" which will format /dev/md0 and/or copy rootfs from backup on flash to /dev/md0 . After that theoretically I should be able to boot and mount data partition and copy data over ssh or nfs.
The kernel is on the flash. OS6 for x86 systems can boot legacy x86 OS4 off the disks for the purposes of allowing you to backup your data. The 104 is ARM and cannot boot into an x86 OS.
When you do a normal boot, in an OS6 x86 system if the NAS detects the OS4 x86 OS it will attempt to boot into that.
Re-installing the OS in an OS6 box would attempt to install OS6 onto the OS partition on the disks. OS6 does not expect an OS4 volume and with a mixture of OS4 and OS6 on the OS partition you'd be left with a system in a bad state.
In any case now that you've got your system to boot you don't need this now, but it is something that you could consider again if needed in the future.
For now, I would recommend that you make sure you have an up to date backup of your data. If the hardware is failing the problem may soon come back and if you have a backup (which we would recommend you have regardless) you may have more options should this happen.
I have now confirmed that a mini-ITX, aka Flex ATX, supply will work as a replcement for the NV, NV+ (v1), NVX, Ultra 4, and Ultra 4 Plus, and I assume Pro 4. Be attentive of the amount of +12V supplied, it needs to be at least 7A to meet the spec of the original. The 250W supply I got provides 13A. One 150W one I saw had only 5A. The connector has to be re-wired per the diagram pointed to in a previous message. One way to do that is to remove the two pins that are changed to +12V and replace them with the +12V from the 4-pin CPU connector. They are the same type of pin. On mine, the cables were the same length, too. If you have trouble removing them, you could cut and splice, but that will void the power supply warranty. You will also need to rig up a way to install the air deflector. Some good aluminum tape ought to do it.
The vent holes in the one I got hold of are not very large, so I would not recommend removing the fan. Being only a 40mm one, it has a rather high pitch when fully spun up, but the one I got does have automatic speed control. The orignal Infrant NV I have shipped with a power supply with fan, and it could get a bit annoying. But since many are relegating their older units to backup that only power up when needed, it would be tolerable unless in a bedroom or something.
I have seen these supplies on eBay for around $30.
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