October 28, 201213 yr So I'm ready to upgrade from 4.7 to 5.0 and got some fresh 3TB reds ready to throw in after that but I do one last parity check beforehand and wouldn't you know, a drive fails. So I took it out, ran HD Tune and, yeah, bad sectors, RMA time. As it stands, I have an unprotected 4.7 array with new 3TB drives sitting on the sidelines. ANYWAYS, how to proceed? I don't really have a spare 2TB drive to get everything up and running. The drive that failed didn't have much data on it. I was thinking of: Copying the data from the failed drive (whose role is now being by the former parity) Shrinking the array without using the failed disk Rebuild the array Upgrade Replace the parity with a 3TB parity Expand array using the old parity drive Copy data back over network What would you guys do? Could I mount the 3TB in 4.7 with SNAP? I'd be way faster to copy data that way.
October 28, 201213 yr So I'm ready to upgrade from 4.7 to 5.0 and got some fresh 3TB reds ready to throw in after that but I do one last parity check beforehand and wouldn't you know, a drive fails. So I took it out, ran HD Tune and, yeah, bad sectors, RMA time. As it stands, I have an unprotected 4.7 array with new 3TB drives sitting on the sidelines. ANYWAYS, how to proceed? I don't really have a spare 2TB drive to get everything up and running. The drive that failed didn't have much data on it. I was thinking of: Copying the data from the failed drive (whose role is now being by the former parity) Shrinking the array without using the failed disk Rebuild the array Upgrade Replace the parity with a 3TB parity Expand array using the old parity drive Copy data back over network What would you guys do? Could I mount the 3TB in 4.7 with SNAP? I'd be way faster to copy data that way. You can Add an HPA to a 3TB drive to make it look as if it is only a 2TB drive. Install it in place of the failed drive. Let unRAID recover to it. Upgradeto 5.0-rc8a, then using another 3TB drive, replace the parity drive. Then, remove the HPA you added to the data drive, letting unRAID think you've just replaced the smaller 2TB drive with the larger 3TB drive. Either is as good as the other. Joe L.
October 28, 201213 yr So I'm ready to upgrade from 4.7 to 5.0 and got some fresh 3TB reds ready to throw in after that but I do one last parity check beforehand and wouldn't you know, a drive fails. So I took it out, ran HD Tune and, yeah, bad sectors, RMA time. As it stands, I have an unprotected 4.7 array with new 3TB drives sitting on the sidelines. ANYWAYS, how to proceed? I don't really have a spare 2TB drive to get everything up and running. The drive that failed didn't have much data on it. I was thinking of: Copying the data from the failed drive (whose role is now being by the former parity) Shrinking the array without using the failed disk Rebuild the array Upgrade Replace the parity with a 3TB parity Expand array using the old parity drive Copy data back over network What would you guys do? Could I mount the 3TB in 4.7 with SNAP? I'd be way faster to copy data that way. You can Add an HPA to a 3TB drive to make it look as if it is only a 2TB drive. Install it in place of the failed drive. Let unRAID recover to it. Upgradeto 5.0-rc8a, then using another 3TB drive, replace the parity drive. Then, remove the HPA you added to the data drive, letting unRAID think you've just replaced the smaller 2TB drive with the larger 3TB drive. Either is as good as the other. Joe L. You cannot use SNAP (or anything else) with the 3TB drive on 4.7. You can use anything you like if you make it appear as a 2.2TB or smaller drive. Joe L.
October 28, 201213 yr Author Thanks, Joe. You're saying do to the 3TB as per here? http://lime-technology.com/forum/index.php?topic=11183.0
October 28, 201213 yr Author Just wanna be sure, is this the correct commend to short stroke the 3tb drive? hdparm -N p3907029168 /dev/sdX as per here: http://lime-technology.com/forum/index.php?topic=20522.msg182062#msg182062
October 28, 201213 yr Just wanna be sure, is this the correct commend to short stroke the 3tb drive? hdparm -N p3907029168 /dev/sdX as per here: http://lime-technology.com/forum/index.php?topic=20522.msg182062#msg182062 That should do it. (as long as your disk controller can handle the 3TB drive and reports its size properly to unRAID.)
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