Hi There, I'm new to unraid.

I have a computer with 10 drive bays. 4x 6tb drives (new) and a random assortment of 1tb+ other drives. One of the 6tb drives refuses to format, I have no idea why. Just is stuck there saying "Unmountable disk present: Disk 3 • ST6000DM003-2CY186_WCT1X3C2 (sdg)" 

 

Screenshot here: https://i.imgur.com/rJNvkE0.png

 

diagnostics file attached.

 

I like unraid and think i'll be buying a pro license, but I need to make it work first and start actually using it as my NAS :) Right now it's stuck 

tower-diagnostics-20191204-0537.zip

Disk3 and to a lesser extent disk2 are suffering from apparent connection issues, start by replacing the cables.

Cables replaced!  Trying now. (the cables were random old ones)

Hmmmm

tower-diagnostics-20191204-0818.zip

Still the constant ATA errors on ATA5/6, might be the ports, swap those disks with other two and see if the errors remain with the same ports.

 

Dec  4 00:12:48 Tower kernel: ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
Dec  4 00:12:48 Tower kernel: ata5.00: configured for UDMA/33
Dec  4 00:12:48 Tower kernel: ata5: EH complete
Dec  4 00:12:48 Tower kernel: ata5.00: exception Emask 0x10 SAct 0x0 SErr 0x10200 action 0xe frozen
Dec  4 00:12:48 Tower kernel: ata5.00: irq_stat 0x00400000, PHY RDY changed
Dec  4 00:12:48 Tower kernel: ata5: SError: { Persist PHYRdyChg }
Dec  4 00:12:48 Tower kernel: ata5.00: failed command: READ DMA EXT
Dec  4 00:12:48 Tower kernel: ata5.00: cmd 25/00:80:80:62:00/00:01:00:00:00/e0 tag 24 dma 196608 in
Dec  4 00:12:48 Tower kernel:         res 50/00:00:7f:62:00/00:00:00:00:00/e0 Emask 0x10 (ATA bus error)
Dec  4 00:12:48 Tower kernel: ata5.00: status: { DRDY }
Dec  4 00:12:48 Tower kernel: ata5: hard resetting link
Dec  4 00:12:48 Tower kernel: ata6.00: exception Emask 0x10 SAct 0x0 SErr 0x10200 action 0xe frozen
Dec  4 00:12:48 Tower kernel: ata6.00: irq_stat 0x00400000, PHY RDY changed
Dec  4 00:12:48 Tower kernel: ata6: SError: { Persist PHYRdyChg }
Dec  4 00:12:48 Tower kernel: ata6.00: failed command: READ DMA EXT
Dec  4 00:12:48 Tower kernel: ata6.00: cmd 25/00:40:00:64:00/00:05:00:00:00/e0 tag 24 dma 688128 in
Dec  4 00:12:48 Tower kernel:         res 50/00:00:4f:0e:00/00:00:80:01:00/e0 Emask 0x10 (ATA bus error)
Dec  4 00:12:48 Tower kernel: ata6.00: status: { DRDY }
Dec  4 00:12:48 Tower kernel: ata6: hard resetting link

 

ok, it sees all the disks! thats awesome. but there is something up. its syncing the parity disk _VERY_ slowly. like 500kb/sec - is that normal? 118 days remaining lol 

tower-diagnostics-20191204-1113.zip

2 hours ago, johnnie.black said:

Still the constant ATA errors on ATA5/6, might be the ports, swap those disks with other two and see if the errors remain with the same ports.

 

- Hmmmm - Might be this crappy enclosure I've got them in. old SATA  I 4 bay removable drive bay enclosure thing 

 

8 minutes ago, Raz31337 said:

its syncing the parity disk _VERY_ slowly. like 500kb/sec - is that normal? 118 days remaining lol 

Still constant ATA errors, there will always be issues until those are gone.

6 hours ago, Raz31337 said:

a random assortment of 1tb+ other drives.

I recommend removing all those and just starting a new array without them.

 

I always recommend fewer larger disks instead of more smaller disks. More disks require more ports, more power, at some point more license, and most importantly, each additional disk is an additional point of failure. And larger disks perform better due to increased density.

 

Haven't checked the SMART for each of those, but I suspect they are also old. Have you tested all of your disks? Every bit of every disk must be reliably read to reliably rebuild a disk.

 

Don't install lots of disks just because you have them laying around. Only install what you need for capacity. It is easy to add disks later, or to replace a disk with a larger disk.

12 hours ago, trurl said:

I recommend removing all those and just starting a new array without them.

 

I always recommend fewer larger disks instead of more smaller disks. More disks require more ports, more power, at some point more license, and most importantly, each additional disk is an additional point of failure. And larger disks perform better due to increased density.

 

Haven't checked the SMART for each of those, but I suspect they are also old. Have you tested all of your disks? Every bit of every disk must be reliably read to reliably rebuild a disk.

 

Don't install lots of disks just because you have them laying around. Only install what you need for capacity. It is easy to add disks later, or to replace a disk with a larger disk.

 

But where is the fun in that?! (lol) 

 

OKAY, I did that. It's great  I'm going to let the 6tb drives which are brand new, and the 3tb drive do their thing now, and it's syncing at 178mb/sec (much better than before, lol) once it's up, I'll add some more drives. Yes I tested them all, but i didn't "preclear" them, can't find the thing for that in the ui, must be a command-line thing?

 

I definitely want to use all my drive bays, as that would be fun, and I think I'd like to add a second parity drive, at what point is that recommended?

 

Thanks!

 

tower-diagnostics-20191205-0048.zip

13 hours ago, johnnie.black said:

Still constant ATA errors, there will always be issues until those are gone.

There was one bad drive (old 1.5tb that is probably a decade old, lol) and one bad cable connected to a 6tb... that cable was at least a decade old, rofl. Thanks, no more errors now I think.

Do any of the disks show SMART warnings on the Dashboard?

 

Be sure to setup Notifications to alert you immediately by email or other agent as soon as a problem is detected. Fix a problem as soon as it occurs so you don't wind up with multiple problems that are more difficult to recover from. And install Fix Common Problems plugin also.