ctviggen

Thanks! Using your guidance, I learned I have 4 Seagate BarraCuda drives, ST8000DM004-2CX188, 5400 rpm, 256 mb cache, which are SMR according to their website. Maybe I get the CMR drive and use that as the parity, and just leave my current spare as a spare. Will order the CMR drive and I'll decide what to do once I get time to add and remove a drive.

Thanks a ton for that. The $180 drive at Amazon is a CMR drive according to this article: CMR versus SMR article When I built this particular unraid server, I used 4 8TB drives, all from the same external drives from Costco. So, when I go into the machine, I'll see what they are. I would not doubt they are cheaper drives. I'll consider slowly upgrading. Thanks again.

Thank you. I will buy a new "drive" then and make my hot spare into the parity drive. What's the best way to do this? I used to buy external drives and "cut" them out of the case ($160): External hard drive Looks like Amazon has internal hard drives anywhere from $110 (Seagate BarraCuda, 5400rpm, 256mb cache) to $130 (WD blue, 5460rpm, 256mb cache) to $180 (Seagate IronWolf 7200rpm, 256Mb cache). When I started, I remember always buying WD Blue, but then I thought they fell out of favor, and when I set up this system, the external drives were cheapest. Any recommendations on what to buy?

Hi all, How concerned should I be about 187, Reported uncorrect error on parity drive (only 1 of them)? Wait till the drive starts having multiple ones of these? Or consider changing the parity drive sooner rather than later? I have a "hot spare" waiting, but if I have to replace a drive, I'd like to get another one just in case.

By the way, by "new installation", I mean really new. New hardware, new everything. Running basically nothing, the only apps are binhex-minidlna (used for my HD Homerun system, which records TV), and community applications. That's it. I took down all computers in the house, the HD homerun, and my HT computer. By "took down", I mean unplugged if I had to or shutdown if it was a computer. As far as I could tell, nothing was connected to the unraid server. I did have one computer running to run the web interface, but that's all that was running. The new server is in its new location, and it's running a parity check, which will take 15 or so hours I think. So, I can't attempt to shut it down until tomorrow.

I know this is an old thread, but I had the same problem today. A new installation, but still I could not shutdown through the web interface. I had to put on my monitor and keyboard and use "powerdown". I had stopped anything I thought might be accessing the server prior to this. Is there anyway to determine why I can't unmount?

This also worked for me. I had an 8TB drive connected as cache, but wanted that as a spare. I already had a 256GB M.2 drive that was free. I bought a 256MB SSD drive so that I could use RAID1 for the cache, and keep the 8TB drive as a spare. I powered down the array, configured everything in hardware, brought the system back up and configured the two SSD drives as a cache pool. Got the same error for the two cache drives: too many missing/misplace drives. (Not sure whether this was caused by the new SSD was not formatted - the M.2 was formatted for cache, as I had used it previously for cache.) I did not have any dockers/VMS. I stopped the array, removed the two SSDs from cache so there was no cache/pool, then started everything. Stopped the array, added back in the two SSDs in the cache/pool, then restarted the array. This worked.

Does marking this as "solved" mean all of this is solved? Or only part of it? @itimpi solved two parts of my issue, but I still have questions as to how to copy files and also whether to rename my 4th 8TB drive (meant for a hot spare) as a temporary cache while copying.

Oops...Answered part of the cache. Now it's called a "pool" instead of a cache. Learned that here: Getting Started Still have the question about whether to use the 4th 8TB as a cache/pool when copying files.

I just brought up a new server, with four 8 TB drives and 1 256GB SSD meant for cache. This is to replace my aging (as in really old) unraid server. I need to copy >10TB from the old server to the new server. At end of copying, I would like: one 8TB parity drive; two 8TB data drives; one 8TB "hot spare"; 256 GB SSD cache. Questions: - Cache: Looking at the page for Main/Array devices, there is no cache option. Did the cache go away? - Rename server: How do I rename the server? (Did this on my current server, but it's been 10+ years since I've done it.) - How do I copy >10TB of files from my old server to my new server? If there is still a cache drive, should I make the fourth 8TB drive be a cache drive temporarily (will be a hot spare) to allow a lot of a copying to happen before the cache is written to the array? Thank you.

I'm setting up a new server to replace my really old server. I bought this motherboard: ASRock Rack E3C246D4U Micro ATX Server Motherboard LGA 1151 Intel C246: AsRock motherboard I was under a heavy time constraint, and bought ONE SIMM of this memory: Crucial Technology 16GB 288-Pin EUDIMM DDR4 (PC4-19200) Server Memory Module, CL=17, Unbuffered, 2400 MT/S Speed, ECC, 1.2V, 2048Meg x 72, Dual Rank, x8 Based I did not think about using dual-channel memory, which requires TWO SIMMs. For an unraid server where I use this (currently) for a NAS only, should I buy another SIMM to enable dual-channel support? I put the motherboard into a rack-mounted case: Rosewill case There are two large fans in front of and blowing air over the 3.5 inch drives (I'll have 4 drives, can add 8), and two smaller fans at the back of the case, extracting air from the case. There are two speed-controlled fan connections on the motherboard. The current fans will not connect to these and instead connect directly to the power supply. This means they run at only one speed. Should I buy fans that can be controlled by using the connections on the motherboard? If so, which fans should I control (2 large front, 2 small back, or both), and is there such thing as a fan splitter that can control 2 fans? By the way, I have started other threads and have not been able to get back to them. This is because my mother was in and out of the hospital, and I had no time to do anything. This also caused me to not take enough time when ordering memory to think about dual channel memory. Unfortunately, my mother passed away. But that now means I have enough time to put this server together.

I am getting a new unraid system to replace my aging system. I currently use my system mainly as a NAS. Don't really do anything with it other than that, yet. My do so in the future. Bought a case to put in a rack. Bought a 650W power supply. Have three 8TB drives to use, gives me 16TB data, one parity drive. This is 1TB more than my current system, which still has 5TB+ free. (And with things like Disney+, I tend to be adding less to the server, not more.) Thinking of this motherboard: AsRock Rack E3C246D4U Micro ATX Server Motherboard This processor: Intel Xeon E-2146G Coffee Lake 3.5 GHz LGA 1151 80W Does this seem reasonable? Thinking of ECC memory, but the choices are overwhelming. This supports "Dual channel DDR4 2666/2400 ECC". Any recommendations? (One issue when I go to Newegg is there appears to be multiple versions of, e.g., 2666 memories. Other issues are wide ranging prices, different manufacturers, etc. Also, how much memory do I need?) For a cache drive, do I "need" an SSD? If so, how big? Thank you.

Sorry, I had a birthday party for my daughter, then had to take my mother to the hospital the next day, then work started. Unraid is still giving me errors, saying that there is something stuck. To which file are you referring? The log file? Does there need to be an immediate error (for instance, running the web interface, I had no message this morning, but did last night). If I want to remove the cache and replace the drive, do I: 1) take system offline 2) remove the cache from the sysem 3) remove the drive from the system 4) add the former cache drive as the disk that I just removed Or are there other steps, such as reformatting the cache drive (formatted in btrfs) to xfs? Thank you.

During this month's parity check a disk started giving errors: The system says that parity is valid, but there were 108 errors on Disk 2. I have a total of 6 data drives. Never had errors on any disk before. I have a "hot" spare that I'm using as cache, same size. Should I replace Disk 2 with the spare? Or do more debugging/wait for a while? Thank you.

I realize this thread is a bit old, but I like this list of parts, and I'm thinking IPMI would be nice to have. I'm trying to build a rack-mounted server to replace my aging, massive 9-drive server. I have 3 8TB drives ready to go (gives me the same storage capacity I have now). I currently use my unraid server simply as NAS. Given more time in the future, I may implement more though. Just to clarify, to get IPMI and ECC, I need the AsRock Rack E3C246D2I? Is ECC critical or just nice to have? If I start with 3 8-TB drives and the other list of parts, what size power supply do I need? Do I use a cache drive that's SSD? (At one time, this was overkill, but I think this may have changed.) By the way, trying to find stuff now is complicated. I settle on a rack-mount computer case, for instance, and either it's out of stock or ships in months. There's a limited selection of in-stock. And parts prices are all over the map. Sometimes cheaper on Amazon, sometimes unavailable, but on NewEgg, or just cheaper on NewEgg. Sometimes other websites suggested here are cheaper (but I have never dealt with them). Makes it quite time-consuming.

I have an unraid system that's massive, with 9 drives in it, but only 15TB of storage. It's also really old, as in "I don't remember how old this is." I'm looking to replace this with a rack-mounted case that can hold at least 4 drives. (I currently have 3 8TB drives waiting to be installed.) When I look at NewEgg (in the US), there are way too many choices. Since I hate fan noise, I thought bigger fans meant less noise (in general), but what does this mean in terms of rack sizing? Can anyone recommend a rack-mounted case? In terms of power/speed, I currently do not use any dockers and my unraid system is really just storage. I use it to store TV, movies, music, etc.

Thanks. I might have to make a post, as I started looking for parts, and it gets a bit overwhelming.

Could you tell me what else you have? I currently have a massive case with 9 drives, but I've already bought 3 8TB drives. I was originally going to use the 3 8TB drives to replace the 9 drives, but this system is old. Really old. So, I think I might get an all new system. And one that's lower power would be a benefit. I really don't do much with my system. It's really a storage location, though movies and TV are stored there, and two streams can be going at the same time.

At some point in the past, I lost data on the cache. I set the mover to copy the cache to the array every hour. I subsequently found out this loss of data was caused by a bad SATA board, which I have replaced (with a recommended one). I have had no issues since. I now want to set the mover back to its normal settings, every 24 hours at 3:40 am. But I don't remember how to do that. Is this the current information on how to adjust the mover: https://wiki.unraid.net/Cache_disk#The_Mover And: https://wiki.unraid.net/Plugin/webGui/Mover_Settings If so, using Windows, I went to the flash drive and tried to find "/usr/local/sbin/mover", but I do not see /usr anywhere. What am I missing on how to change the mover's time?

Thanks. That sounds a lot easier than what I was going to do. You'll have to forgive me, but I rarely use my unraid interface and in fact since it runs so well for so long, when I do have to do anything, I have to relearn how to do anything I've done before. I do something with unraid every few years. So, when you say "mount 2 8TB disks using UD, and copy everything from the current 3TB & 2TB data drives to them", I know that's probably easy to do, but I don't know how to do that. For instance, what's "UD" and how do I use it (any link would help)? I'd search, but I can't think of what "UD" means as an acronym. And, to copy, do I just use a windows computer and drag and drop from the current drives to the 2 new 8TB drives? Or is there something special I have to do? Thank you.

My current situation: 2 parity drives (2 x 3TB); 6 data drives (3 x 3TB + 3 x 2TB); 1 cache drive (as a "hot" spare, 3TB). I want to move to: 1 parity drive (8TB); 2 data drives (2 x 8TB); 1 cache drive (3TB, same as now). Currently, 15TB data drives, of which 5.86 TB is free. I'd be moving from 15TB to 16TB. Main reasons: one cache drive and one data drive having intermittent errors; less power; once I'm done, I add one more drive, get another 8TB of space; seems cheaper than buying the bare drives, $140 right now for 8TB external drives at Costco. Also, I currently am maxed out in drive bays, and going to bigger drives means I would have drive bays. I bought 3 Seagate external drives, each 8TB, in case with power supply. I will take the drives out of these. I'd like to put a sequence of steps here, in case anyone has similar issues, and to ask a few questions. First question: are there any windows tools for preclear, so that I can preclear (and possibly test) the drive while it's still in the external case? Is this the list of steps? 1) Go from 2 parity drives to one. 2) Remove the unused parity drive, replace with 8 TB drive 2A) Preclear 8TB drive if not done already (and test?) 3) Replace single 3TB parity drive with 8TB parity, take out 3TB parity drive 3A) Have a free drive bay here, add 8TB and preclear/test 4) Select data drive throwing intermittent errors, take out and replace with 8TB drive 4A) Have a free drive bay here, add 8TB and preclear/test 5) Select another data drive, take out and replace with 8TB drive -> At this point, the 8TB parity is working and there are two 8TB data drives, but four extra, unnecessary drives. 6) Copy/move data from "extra" drive to 8TB drive, remove extra drive 7) Repeat #6 for the three other "extra" drives. Does this sound reasonable? Are there any threads/documentation for: #1, going from 2 parity drives to one; #6, copying/moving data from "extra" drive to 8TB drive, removing extra drive I will also search for these, and provide links if I find them. Thank you.

I had no idea I could do that. It's interesting to see how everything is spread out.

Thanks again. I do think it's idle a lot. We do, however, record TV on it, but (assuming I'm not home, as I am today) it should be idle a ton during the day. Not too many shows during the day. I have two dockers, one for TV, and one I don't really use. I think they are both on the cache, but will have to check. Thanks again for your help.

I do. I then have the cache sent to the array on a relatively short interval (every hour?). (I lost data, so I shortened the interval. I subsequently traced this to a crappy SATA board, and I bought one recommended on here and haven't had an issue since. I forgot and haven't changed the writing interval.) So, the only thing I currently do with the cache is cache the user share writes.

Thank you. My hardware is old -- as in I don't remember when I bought it old. In the time my unraid server has been running (24/7/365, except for power outages), I've gone through at least 3 home theater computers (which also run 24/7/365 when they work). Each one has failed. And I've only replaced a few drives (2?) this entire time in my unraid server. (Maybe I should knock on wood or do whatever I have to do to not jinx this!) Because of the age of the hardware, I was thinking of buying new hardware just to have it. Not sure I can buy 3 new drives AND new hardware, though, at least at this time. Right now, my unraid server is "just" a NAS device. In the short-term, my basement project is taking so long, and I have at least 5-6 more weekends of work (at least - hard to tell, always much more time-consuming than I think it will). Once the project is done, maybe then I could devote more time to see what I can do with unraid.