November 23, 201114 yr Just built my first server this evening, and after reading the manual and doing the basics, I can't understand why no array shows up. I have 4 3tb hard drives. They all show up as options in the dropdown of the devices tab under my //tower I put one in party and 3 in disc 1-3 device. Now what? Nothing happens. There is nothing under main showing any array to start, I tried rebooting. Am I missing something? This is my first day at this but it looks like it should be simple.
November 23, 201114 yr Version 4.7 and earlier do not support 3T. drives, you need to be running one of the 5.0 beta versions.
November 23, 201114 yr from the "news" area at the top of the forums Beta Support for 3T Drives in 5.0-beta8 or later. Recommended for test arrays only at this time. If using an LSI SATA/SAS PCIe card i think Beta11(a) is your best bet. If you are using onboard SATA then the latest version would probably be ok...but before you do it i would suggest having a read through the announcements area of the forums
November 23, 201114 yr Author Thank you. I had feared that I'd have to use the beta version to do this. That doesn't really help me move forward at this time of building a usable server How long will preclear take on a 3tb drive? I was reading that it is a LONG process.
November 23, 201114 yr I precleared a 2Tb drive yesterday. Took 12.5 hours. I would think you could estimate the time for a 3tB preclear from that. Enjoy your build. Vic
November 23, 201114 yr I precleared a 2Tb drive yesterday. Took 12.5 hours. I would think you could estimate the time for a 3tB preclear from that. Enjoy your build. Vic lucky you, I am preclearing 3 2TB right now and it is already more then 30+ hours
November 23, 201114 yr My WDEARS and WDEADS 2TB drive take anywhere from 25hrs to 27hrs per cycle. Any more than that and I run extra cycles to see if it is going to die or get worse. If the access speeds get worse I RMA the drive. If the drive throws relocated sectors that increase during the testing I RMA the drive. Now if they have any pending sectors that don't relocate just stay as pending I RMA the drive. Also I run 3 preclear cycles as a standard. So it takes me 72+ hrs before I put them in my array.
November 24, 201114 yr My WDEARS and WDEADS 2TB drive take anywhere from 25hrs to 27hrs per cycle. Any more than that and I run extra cycles to see if it is going to die or get worse. If the access speeds get worse I RMA the drive. If the drive throws relocated sectors that increase during the testing I RMA the drive. Now if they have any pending sectors that don't relocate just stay as pending I RMA the drive. Also I run 3 preclear cycles as a standard. So it takes me 72+ hrs before I put them in my array. ;D You sound like you lost data to a drive crash in the past? :D Seriously though, damelon, since preclear can be done painlessly, it's a very good idea to do at LEAST 2 full cycles, more if you plan on trusting it hold data reliably for any length of time. All hail Joe L. for developing the best drive burn in tool I have ever used.
November 24, 201114 yr I precleared a 2Tb drive yesterday. Took 12.5 hours. I would think you could estimate the time for a 3tB preclear from that. Enjoy your build. Vic that sounds too fast. Are you sure it completed? Did you skip any phases?
November 25, 201114 yr My WDEARS and WDEADS 2TB drive take anywhere from 25hrs to 27hrs per cycle. Any more than that and I run extra cycles to see if it is going to die or get worse. If the access speeds get worse I RMA the drive. If the drive throws relocated sectors that increase during the testing I RMA the drive. Now if they have any pending sectors that don't relocate just stay as pending I RMA the drive. Also I run 3 preclear cycles as a standard. So it takes me 72+ hrs before I put them in my array. ;D You sound like you lost data to a drive crash in the past? Yes I have. Not since I've been using unRAID however
November 25, 201114 yr Author So since I am using unRaid 5b13, which has the default MBR 4k align selected, I don't need to worry about the -A right? (I'm asking because I didn't use it) I've been running it on my 4 drives and so far no issues, which is good considering some of the history of the WD green drives. (3 are EZRX 1 is EZRS) I'm a good 16 hours in now, at 70% done with step 2 of 10. Going to keep my fingers crossed!
November 25, 201114 yr Those WD drives either need to be 4k-Aligned or unaligned with the jumper. You didn't mention using a jumper. Double check the alignment of each drive once you create the array. Click on the disk link will bring up an info page telling you the alignment amoung other things.
November 25, 201114 yr Author I didn't add a jumper. But I was reading on the preclear page "If you are running unRAID 4.7 onward, in the absence of either a "-a" or "-A" option specified on the command line, preclear_disk.sh will use the alignment preference you specified in the unRAID settings screen as its default. (-a will force MBR-unaligned. -A will force MBR-4k-aligned )" The command I ran was just preclear_disk.sh /dev/sda. So does that imply -A or am I going to still have to force it? I will end up running this twice on all of the drives as mentioned here so I wanted to make sure I did it the correct way at least the 2nd time. I guess since the server is set to use MBR 4K aligned, it wouldn't hurt to just throw in the -A for safety sake anyway.
November 26, 201114 yr If you use the most current version of the preclear script, you should be fine. You can easily check as already described.
November 26, 201114 yr Author Yeah the default setting in the latest beta is the 4k MBR setting. When I ran the 2nd round of preClears with the -A it looked the exact same. So good there. Plus got unMenu working with screen now so I can see all of the status updates on the web. Thanks for the script Joe. Joe (Or Anyone) - I have 3TB Caviar Green drives, does about 85MB/s seem normal for zero out speeds? They usually all start like 115 or so and slowly drop during the burn-in process until they reach the low 80s (Was the case in round-1) I read somewhere that people said they RMAd their drives for slow-down and want to make sure this is not the case.
November 26, 201114 yr Yeah the default setting in the latest beta is the 4k MBR setting. When I ran the 2nd round of preClears with the -A it looked the exact same. So good there. Plus got unMenu working with screen now so I can see all of the status updates on the web. Thanks for the script Joe. Joe (Or Anyone) - I have 3TB Caviar Green drives, does about 85MB/s seem normal for zero out speeds? They usually all start like 115 or so and slowly drop during the burn-in process until they reach the low 80s (Was the case in round-1) I read somewhere that people said they RMAd their drives for slow-down and want to make sure this is not the case. Those speeds are about what I get. I would consider that normal - but I'm no expert.
November 26, 201114 yr Yeah the default setting in the latest beta is the 4k MBR setting. When I ran the 2nd round of preClears with the -A it looked the exact same. So good there. Plus got unMenu working with screen now so I can see all of the status updates on the web. Thanks for the script Joe. Joe (Or Anyone) - I have 3TB Caviar Green drives, does about 85MB/s seem normal for zero out speeds? They usually all start like 115 or so and slowly drop during the burn-in process until they reach the low 80s (Was the case in round-1) I read somewhere that people said they RMAd their drives for slow-down and want to make sure this is not the case. Those speeds are about what I get. I would consider that normal - but I'm no expert. those are very normal speeds.
November 28, 201114 yr well I just finish my preclear it took 76 hours to simultaniosly preclear 3 2TB Seagate Green (LP) drives using latest preclear script with 3 passes(-c = 3) , using SCREEN sessions. no errors at all , no allocated sectors etc. no failures of any kind detected except my flash became read-only (maybe me removing it during preclear have something to do with it ??? ) so script failed to write logs when done. soon my server will be done and running whoooooo hooooooooo !!!!!
November 28, 201114 yr NEVER remove the flash drive from the server while it is running!!! you got that right :0
November 28, 201114 yr Author So I finally got my array online. Finished two pre-clear passes on all 4 drives, added the drive, got it formatted, and then the manual party drive check. Started copying MKVs as I am converting my ISOs. Do I ever need to manually re-check the parity or does it do that on its own?
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