bramley4600

Thanks again. So, as it was saying the bad disk was missing, I took it out of my PC and put it back in my Unraid server. Hey presto, I was able start the array in maintenance mode and it re-built the disk, which I could not do before. Had a quick look and I have most of my data apart from a few bits missing. I have a large folder with all my classical music, when I look at the User share, the folder is empty, if I look at the disk share, it's all there. Alsi, in your experience, I have a new 4tb drive, should I create a second parity drive or use it as a data drive? Cheers

i don't understand why disk 5 should suddenly report as 'bad' whilst doing a pre-clear on a new disk 7?

Sorry, Disk 6 showa the old ID of the failed drive

Thanks. All drives report 'Passed' in the Smart Report. Is there anything else I need to look out for in the Smart Report. Disk 5 still shows the ID of the old failed drive. Cheers P

Thanks very much for the info. The sequence of events which I did not make clear:- (sorry, I'm getting confused now as well) Disk 7 suddenly became unusable/corrupt/damaged.... with lots of errors Bought a new 4TB disk and pre-cleared it to replace the old one, which I placed in my desktop PC. No matter what I do, it is still saying this disk is missing and the slot it used says it is the wrong drive. Whilst doing this, Disk 6 suddenly showed lots of errors for some reason. Disk 5 is actually the new disk I bought but I can't add it as I can't start the array without the old drive. Maybe the best bet is to do a new config with the new drive and forget about the old drive 6 (it as a newish drive which seems to have failed)

Can't get disk 6 back. Does that mean I have to do a 'New config' ?

OK, so here goes. My Unraid system is 6.7.0 and has been running great until I received a 'missing disk' message. Checked all the connections but then experienced random lost connections to the network, plus on re-boot, would stick at '92' on the motherboard disply. Bought a new disk, removed the 'missing' one, pre-cleared it etc. Now, when I manage to get the webgui up I cannot start the array. The new drive shows up as OK, but it still tells me the old disk is 'missing' and I'm getting errors showing up on another one of my disks. (Does that mean I have to put the old one back in?). So all I get now is 'Invalid expansion' and 'You may not add new disks and remove exisiting disks' Any help would be greatly appreciated as I don't want to lose all my files. Thanks. tower-diagnostics-20190609-0908.zip tower-smart-20190609-1021.zip

Once again, thanks very much. Really appreciate it.

I love you - can I have your babies !! I did a pre-clear and a clear and it's worked ater 3 weeks of pushing and shoving. Fantastic. Who would have thought the problem was with the Marvell thingy. One question. Because of all the messing with the drives, my new 4 TB drive has been added to the array, but it remains in the Historical Devices section as 'missing'. Am I safe to select Remove?

Ok, it's now doing a pre-clear erasing thingy. See how it goes. Thanks

Thanks for the help. I'll go and find out now what a Marvell port is. Cheers

Thanks for the info. I have installed the latest BIOS for tower-diagnostics-20181105-1213.zipthe mobo.

I built a new unraid system 12 months ago. Apart from losing network connection occasionally, it's been really good and I don't want to change to another system unless I can solve my problem. Freenas/Ubuntu Server etc don't really appeal. I installed 2 SSD drives as a cache pool but the second drive gave me errors so I am using it on my Windows PC. Since then, whatever I do I can not install another parity drive, cache drive or add a drive to the array. I have tried 2 new SSD drives, a WD 4TB Red drive, a WD 2TB Purple drive but all of them never get past the clear/pre clear stage. I have also tried changing the SATA cables several times. If I do a pre-clear a second time it finishes after a few minutes and says completed. I have the same problem as a previous poster - https://forums.unraid.net/topic/74099-where-is-the-mce-log/ My system is as follows:- ASRock - EP2C602-4L/D16 Intel® Xeon® CPU E5-2670 0 @ 2.60GHz 128 GB Multi-bit ECC From the System log:- Nov 3 10:58:39 Tower kernel: EDAC MC0: 1 CE memory scrubbing error on CPU_SrcID#0_Ha#0_Chan#0_DIMM#1 (channel:0 slot:1 page:0x33e2c offset:0x0 grain:32 syndrome:0x0 - area:DRAM err_code:0008:00c1 socket:0 ha:0 channel_mask:1 rank:4) Nov 3 11:01:48 Tower kernel: mce: [Hardware Error]: Machine check events logged Nov 3 11:01:48 Tower kernel: EDAC sbridge MC0: HANDLING MCE MEMORY ERROR tower-diagnostics-20181103-1116.zip Really appreciate any help. Thanks

Hi Bob I have the EP2C602-4L/D16 and just assumed (incorrectly) that the correct port would be port 5 (LAN 1).

Thanks John. Appreciate it.