riff.79 Posted June 1, 2018 Share Posted June 1, 2018 (edited) Hey there! So I'm looking to build a new UNRAID server to replace my N40L. I have these parts sitting around - I'm slightly concerned the power supply might not be enough wattage. OS at time of building:Latest Stable CPU:AMD A4-4000 Motherboard:Asrock Fm2A85X - https://www.asrock.com/mb/AMD/FM2A85X-ITX/ RAM:8GB DDR3 Case:Silverstone DS380 Power Supply:Silverstone 300W SFX power unit - http://www.silverstonetek.com/product.php?pid=458&area=en Fans: Stock Parity Drive: 2 x WD RED 4TB Data Drives:6 x WD RED 4TB Primary Use: 24/7 File Server, no transcoding This server would be on 24/7 - just a file server - no transcoding etc. Thanks! Edited June 1, 2018 by riff.79 Quote Link to comment
Fireball3 Posted June 13, 2018 Share Posted June 13, 2018 (edited) A file server is typically very efficient. Power (wattage) is not the main criterion when selecting the PS. It's the inrush current that has to be supplied at start-up. The PS delivers ~25A on the 12V rail. Luckily it's a single rail PS! Now assume 5A for Board and things. Remaining 20A/8 drives = 2.5A / drive The WD red is rated at 1,75A peak current. So your PS is sufficient. You might even go up to 10 drives. Also consider the PSU thread for information. Edited June 13, 2018 by Fireball3 Quote Link to comment
riff.79 Posted June 14, 2018 Author Share Posted June 14, 2018 23 hours ago, Fireball3 said: A file server is typically very efficient. Power (wattage) is not the main criterion when selecting the PS. It's the inrush current that has to be supplied at start-up. The PS delivers ~25A on the 12V rail. Luckily it's a single rail PS! Now assume 5A for Board and things. Remaining 20A/8 drives = 2.5A / drive The WD red is rated at 1,75A peak current. So your PS is sufficient. You might even go up to 10 drives. Also consider the PSU thread for information. Thanks mate! much appreciated. Quote Link to comment
Aaron D Posted October 25, 2020 Share Posted October 25, 2020 I have never built a computer. I'm a photographer with no IT staff, and I've got lots of giant files I need to store someplace. My Drobo just died and I need to replace it, but it looks like Drobo is going belly up, and I'm stuck. I like what I read about unRAID, but I'm at a loss for how to implement it. In the spirit of ignorance, could I buy something like an OWC 8-bay enclosure and use it with unRAID? I see JBOD as an option in some of these DAS and NAS enclosures, so maybe that's a possibility? I really don't have the mental fortitude to learn about mother boards and power supplies. I kinda need something that plugs in and switches on. Thanks in advance. 1 Quote Link to comment
trurl Posted October 25, 2020 Share Posted October 25, 2020 Unraid is an Operating System, so it needs its own computer to run on. Typically that will be a computer that can have disks installed in it. Some people have used external enclosures as a way to add space for drives to their computer that is running Unraid, but this approach can have some complications of its own. 1 Quote Link to comment
Aaron D Posted October 25, 2020 Share Posted October 25, 2020 10 hours ago, trurl said: ...needs its own computer to run on. Typically that will be a computer that can have disks installed in it. OK got it now--thank you! Quote Link to comment
akostadinov Posted March 6, 2022 Share Posted March 6, 2022 I just took a Thinkcentre M625q for file storage. Seems a little bit low spec for <some other storage operating systems>. It has 8GB RAM and E2-9000e CPU. With a USB HDD enclosure or m.2 SATA splitter + external power supply seems as a viable option. Any recommendations how to add many drives via USB or m.2 splitting? Will this work fine with unraid? Quote Link to comment
ChatNoir Posted March 6, 2022 Share Posted March 6, 2022 1 hour ago, akostadinov said: how to add many drives via USB USB is not recommended for Array drives (Pools too ?) Quote Link to comment
trurl Posted March 6, 2022 Share Posted March 6, 2022 USB not recommended for array or pools. You might get away with it if the pools are single disk, and the array has no parity. Otherwise, disconnects will make things out-of-sync. Another thing with USB enclosures is the bottleneck caused by accessing multiple disks through one connection. Parity operations require accessing multiple (even all) disks simultaneously. USB also can have other drawbacks, such as no SMART information Unraid uses to monitor drive health, not presenting drive serial numbers so Unraid can keep track of disk assignments, presenting non-standard drive sizes, probably others I can't remember. Quote Link to comment
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