December 15, 201015 yr Author hmm didn't know that. I have this other ps http://www.newegg.com/Product/Product.aspx?Item=N82E16817341039 would this one work better? It said it still has another 48300min before it finish. No, probably not. It has multiple rails in it also with them all split into 18amps. Either of those supplies is severely lacking for using in an unRAID server with 15 drives. Frankly it is kind of a miracle it is working at all and has not crashed and burned earlier. The max number of drives I would have put on either PSU would have been 8 green drives, and probably really only 7 green drives. wow really? It been running like that for over a year and 5months now with no problem, I guess I been lucky then. If it wasn't for me messing around with the jumpers and ran into these problem. I wouldn't even know.
December 15, 201015 yr Author When I was building this tower I tired to buy the same parts as the MD-1510/LI. I think the only thing different was the cpu and memory. I don't remember why I didn't get the same powersupply, I think it was because I saw the ocz on sale and it had almost the same wattage. I plan on picking up the CORSAIR CMPSU-650TX 650W. I'm trying to understand this amp/rail thing. The corsair has 1 12v rail with 52 amp, my ocz has 3 rail that has 18 amp. So if I plugged too many devices into one rail I could overload it? Where with 1 52amp rail I wouldn't have to worry about it right? The rebuild is going a lot faster now. I think it should be done sometime today. At first I though it would take about 6 days to complete.
December 15, 201015 yr When I was building this tower I tired to buy the same parts as the MD-1510/LI. I think the only thing different was the cpu and memory. I don't remember why I didn't get the same powersupply, I think it was because I saw the ocz on sale and it had almost the same wattage. I plan on picking up the CORSAIR CMPSU-650TX 650W. I'm trying to understand this amp/rail thing. The corsair has 1 12v rail with 52 amp, my ocz has 3 rail that has 18 amp. The rebuild is going a lot faster now. I think it should be done sometime today. At first I though it would take about 6 days to complete. The total capacity of a power supply is only in the minds of the marketing people. Your current supply has only 1 of its two rails available for disks on the SATA and MOLEX connectors. The other 12volt rail is connected to the PCIe connector and mostly intended (on your supply) for power hungry video cards. Your supply has almost exactly the same capacity to power disks as a much smaller 300 watt supply. So if I plugged too many devices into one rail I could overload it?Yes, and you have overloaded it. Each "green" drive draws roughly 2 amps when spinning up. Each non-green 3 Amps when spinning up. With 15 drives you need between 30 and 45 Amps just for the disks. You have 18 . Where with 1 52amp rail I wouldn't have to worry about it right?Exactly.
December 15, 201015 yr I have an OCZ power supply that advertises as multi rail that I purchased because it was practically free with a combo. I opened it up to investigate the multi rail situation. All of the 12 volt lines were connected internally. I suspect your supply may be the same, allowing you to run 15 drives. I highly recommend seeking a higher capacity and higher quality power supply. I am a Seasonic fan, the Corsair 650TX is a rebadged Seasonic and would suit your needs fine.
December 15, 201015 yr I have an OCZ power supply that advertises as multi rail that I purchased because it was practically free with a combo. I opened it up to investigate the multi rail situation. All of the 12 volt lines were connected internally. I suspect your supply may be the same, allowing you to run 15 drives. That might explain why it worked at all. Even then, he might be pushing it. (18A * 2) = 36 Amps 12volt capacity total. It needs need to power the CPU, memory, controller cards, fans. At 2 Amps per drive with green drives it only leaves 6 Amps for the remainder. (and that is assuming all green drives) I highly recommend seeking a higher capacity and higher quality power supply. me too.
December 15, 201015 yr Even then, he might be pushing it. (18A * 2) = 36 Amps 12volt capacity total. It needs need to power the CPU, memory, controller cards, fans. At 2 Amps per drive with green drives it only leaves 6 Amps for the remainder. (and that is assuming all green drives) Yeah, if he is running "standard" 7200RPM drives he could be pulling another 15amps above the green estimation of 30amps. If he has 7200RPM drives he has to be overdrawing the PSU and it is a miracle it has not shown problems before. If you have 7200RPM drives get something that has at least 50amps on a single rail.
December 16, 201015 yr Author It finish rebuilding and show parity with 0 errors. I'm not sure if there was any data lost because there is so much stuff on them but I guess its all good then? Thanks a lot for your help Joe. I'm gonna get the one corsair ps that is recommended. last question. When upgrading the PS I might need to unplug the sata cables. When plugging them back in do I have to make sure each one goes back to the same drive or do I just have to make sure it is assigned in the unraid device menu correctly.
December 16, 201015 yr It finish rebuilding and show parity with 0 errors. I'm not sure if there was any data lost because there is so much stuff on them but I guess its all good then? Thanks a lot for your help Joe. I'm gonna get the one corsair ps that is recommended. last question. When upgrading the PS I might need to unplug the sata cables. When plugging them back in do I have to make sure each one goes back to the same drive or do I just have to make sure it is assigned in the unraid device menu correctly. The latter. Now that the array is back with all green indicators, you might still need to now perform the steps to check the file systems on those two disks. I'd not write to them until you did. Otherwise, if they were corrupted you might do more damage that would make it harder to recover. Joe L.
December 16, 201015 yr Author Ok so I should follow the instructions here http://lime-technology.com/wiki/index.php?title=Check_Disk_Filesystems the first step would be to run reiserfsck --check
December 16, 201015 yr Ok so I should follow the instructions here http://lime-technology.com/wiki/index.php?title=Check_Disk_Filesystems the first step would be to run reiserfsck --check Basically yes. after the prior steps of stopping Samba and un-mounting the drive. Joe L.
December 18, 201015 yr Author Ok I had to chance to run and finish reiserfsck on disk14 . It said finished and no corruptions found on the screen. Does this mean everything is good? Thanks a lot for your help Joe.
December 18, 201015 yr Ok I had to chance to run and finish reiserfsck on disk14 . It said finished and no corruptions found on the screen. Does this mean everything is good? Thanks a lot for your help Joe. That is good news indeed. I'd perform the same type of check on disk4, just to be safe... but it sounds like you are getting everything back to normal. (and that is really great after having two failed drives)
December 23, 201015 yr I love stumbling upon these kinds of success stories. With pretty much any other system all your data would be hosed by this point. <3 unRAID.
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