Ice_Black Posted October 8, 2014 Share Posted October 8, 2014 Anyone using 6TB drives yet? tell us your experience and which model are you using.. Quote Link to comment
switchman Posted October 8, 2014 Share Posted October 8, 2014 Preclearing my first 6TB WD Red now. I run either 3 or 5 passes depending on the drive. This one will get five. I run them as 1, 2 and 2 passes. First pass was completed with no issues. The first drive sent to me was bad. It would stop the server from even booting. This is its replacement. One good thing about New Egg, if the part is bad and you are exchanging it, they will pay the return shipping. Quote Link to comment
c3 Posted October 8, 2014 Share Posted October 8, 2014 ST6000NM0024-1HT17Z, one failure so far, well below 1%. Quote Link to comment
prostuff1 Posted October 9, 2014 Share Posted October 9, 2014 Anyone using 6TB drives yet? tell us your experience and which model are you using.. Just built a server for a customer that had 10 WD 6TB Red drives in it. They all precleared fine and were running great when I shipped the server out. Quote Link to comment
dirknina Posted October 23, 2014 Share Posted October 23, 2014 has anyone used the HGST he6 6tb drives yet? what is the typical time for a preclear pass on 6tb drive? i was looking into getting some for my first unraid but still shopping around. Quote Link to comment
Brucey7 Posted October 24, 2014 Share Posted October 24, 2014 I have 11 WD 6TB Red drives, they're all good. Only complaint is with ReiserFS, theoretically it supports 16TB drives, I very much doubt it will support anything bigger than a 6TB drive. I had to do some tweaking to get it to put the last few files on the WD 6TB Red's. They are painfully slow on write as they finally get full (unRAID 5.0.5). Quote Link to comment
c3 Posted October 24, 2014 Share Posted October 24, 2014 How full did you fill them? You will find any filesystem is slower if you completely fill it. The "holes" get sprinkled around and any write becomes a game of find a place for many small writes. Quote Link to comment
HiSoC8Y Posted October 24, 2014 Share Posted October 24, 2014 I just bought two WD RED WD60EFRX 6TB. Will add them to my unRAID that already has 15 drives (mix of 3TB and 1TB). One of the new WD60EFRX will be used as a parity drive since the parity drive has to be at least the same of the largest disk in the array. Once i have it up and running, i'll give you feedback. I bought two of them for $579 from newegg.com Quote Link to comment
WeeboTech Posted October 24, 2014 Share Posted October 24, 2014 Only complaint is with ReiserFS, theoretically it supports 16TB drives, I very much doubt it will support anything bigger than a 6TB drive. I had to do some tweaking to get it to put the last few files on the WD 6TB Red's. They are painfully slow on write as they finally get full (unRAID 5.0.5). What kind of tweaking? Quote Link to comment
garycase Posted October 24, 2014 Share Posted October 24, 2014 Reiser is very slow at writes to ANY size drive when it gets very nearly full ... doesn't matter if it's 1TB, 3TB, 6TB, or even 500GB. I'm sure it will, in fact, support drives up to the designed limit of 16TB in the same way. ... it'll be a while before anyone can confirm that, of course, unless you're using RAID controllers to provide the "drives" to UnRAID [i do know someone with an 8TB parity drive that's actually a pair of 4TB drives in a RAID-0; and a couple of 8TB "drives" that are also created in the same way.] But I don't know anyone who's built anything larger than that. Quote Link to comment
Brucey7 Posted October 24, 2014 Share Posted October 24, 2014 How full? All except 5GB I treat them as WORM and never more than one write at a time so no user created fragmentation Tweaking? Changing the windows timeout parameter from 45 secs to a much larger figure Quote Link to comment
neilt0 Posted October 24, 2014 Share Posted October 24, 2014 xfs seems better in that respect. I migrated two of my 4TB ReiserFS drives to xfs as one was getting so slow to write to, it was essentially unusable. Even after deleting 500GB from that drive, it was still too slow to use. Quote Link to comment
Brucey7 Posted October 24, 2014 Share Posted October 24, 2014 xfs seems better in that respect. I migrated two of my 4TB ReiserFS drives to xfs as one was getting so slow to write to, it was essentially unusable. Even after deleting 500GB from that drive, it was still too slow to use. Indeed, I have read a few articles saying this issue goes away with a change of file system. They also say that the bigger the disk, the more of a problem it is with ReiserFS, my experience with 3TB, 4TB and 6TB disks tends to back that up too. Quote Link to comment
WeeboTech Posted October 24, 2014 Share Posted October 24, 2014 The reiserFS near full delay problem has always been there. I believe it's based on how directories are allocated and grow. New structures require data from near the middle of the drive as it walks through all the structures. In my prior experience, I had timeouts writing to near full drives that were only 1TB. I did the whole directory cache scanning beforehand as a test. i.e. a find down the tree. That did not solve it. What helped was creating the directory manually on the unRAID server beforehand. Once a new directory was created the timeouts and population thereafter went smoother. So although the data may not be fragmented, I believe the directories do get fragmented as they grow. @Bruce if you could share the timeout tweak, it could help some people until reiserFS is no longer used. Quote Link to comment
Brucey7 Posted October 24, 2014 Share Posted October 24, 2014 I have posted the timeout tweak before, it is here http://lime-technology.com/forum/index.php?topic=35743.msg333021#msg333021 It works flawlessly for me. Quote Link to comment
foo_fighter Posted October 26, 2014 Share Posted October 26, 2014 Here's a new contender: http://www.newegg.com/Product/Product.aspx?Item=N82E16822145973&cm_re=6tb-_-22-145-973-_-Product Quote Link to comment
dirknina Posted October 26, 2014 Share Posted October 26, 2014 Foo that is almost the one i was looking at. The one i saw was a enterprize drive and helium filled. http://www.newegg.com/Product/Product.aspx?Item=N82E16822145950 but yours is much cheaper Quote Link to comment
WeeboTech Posted October 26, 2014 Share Posted October 26, 2014 Here's a new contender: http://www.newegg.com/Product/Product.aspx?Item=N82E16822145973&cm_re=6tb-_-22-145-973-_-Product I'm so tempted!!!!! Yet, black friday is coming soon! Quote Link to comment
garycase Posted October 26, 2014 Share Posted October 26, 2014 Foo that is almost the one i was looking at. The one i saw was a enterprize drive and helium filled. http://www.newegg.com/Product/Product.aspx?Item=N82E16822145950 but yours is much cheaper It's not only cheaper, but it's faster !! They're both 7200rpm drives, but the new H3IKNAS600012872SN drive has a higher areal density => indicating the drive uses fewer platters than the helium-filled drive (I suspect 6 platters vs. 7 for the helium unit) Quote Link to comment
foo_fighter Posted October 26, 2014 Share Posted October 26, 2014 This seems to indicate that it's 5 platters(Same Areal density as the 7K6000 Enterprise drives) : http://www.hgst.com/hard-drives/internal-drive-kits/nas-desktop-drive-kit http://www.hgst.com/tech/techlib.nsf/techdocs/0BF8B842F66D454288257C74007E842B/$file/DS_NAS_spec.pdf Foo that is almost the one i was looking at. The one i saw was a enterprize drive and helium filled. http://www.newegg.com/Product/Product.aspx?Item=N82E16822145950 but yours is much cheaper It's not only cheaper, but it's faster !! They're both 7200rpm drives, but the new H3IKNAS600012872SN drive has a higher areal density => indicating the drive uses fewer platters than the helium-filled drive (I suspect 6 platters vs. 7 for the helium unit) Quote Link to comment
hooger Posted October 26, 2014 Share Posted October 26, 2014 Anyone using 6TB drives yet? tell us your experience and which model are you using.. I bought two TB WD Red's in September, I had one that showed disk errors after the first week, but it was RMA'd and they both work great. Quote Link to comment
garycase Posted October 27, 2014 Share Posted October 27, 2014 This seems to indicate that it's 5 platters(Same Areal density as the 7K6000 Enterprise drives) : http://www.hgst.com/hard-drives/internal-drive-kits/nas-desktop-drive-kit http://www.hgst.com/tech/techlib.nsf/techdocs/0BF8B842F66D454288257C74007E842B/$file/DS_NAS_spec.pdf Foo that is almost the one i was looking at. The one i saw was a enterprize drive and helium filled. http://www.newegg.com/Product/Product.aspx?Item=N82E16822145950 but yours is much cheaper It's not only cheaper, but it's faster !! They're both 7200rpm drives, but the new H3IKNAS600012872SN drive has a higher areal density => indicating the drive uses fewer platters than the helium-filled drive (I suspect 6 platters vs. 7 for the helium unit) It may very well be a 5-platter unit with the same 1.2TB/platter areal density as the WD Reds. The indicated density (703GB/sqin) is consistent with that ... although the % increase from the 7 platter units isn't consistent with a 7-5 reduction in platters. But that's likely just due to the physics of the platters, which doesn't allow quite that much compacting. IF that's the case, then these drives should have some really outstanding sustained transfers speeds, since they would not only match the 1.2TB/platter density of the WD Reds, but also gain 33% due to the higher rotational speed. Quote Link to comment
uhhuh Posted October 27, 2014 Share Posted October 27, 2014 Here's a new contender: http://www.newegg.com/Product/Product.aspx?Item=N82E16822145973&cm_re=6tb-_-22-145-973-_-Product Just purchased. It was out of stock last week on Amazon, and I didn't think to look at newegg.. Good looking out! Quote Link to comment
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