smino Posted April 29, 2013 Share Posted April 29, 2013 parity 2001b4d2041407574 (sda) 3906249932 * 4 TB - 0 43 0 disk1 [browse /mnt/disk1] 2001b4d2092112206 (sdc) 2930266532 * 3 TB 3 TB 43 0 0 disk2 [browse /mnt/disk2] 2001b4d2032642902 (sdd) 2930266532 * 3 TB 3 TB 43 0 0 flash [browse /boot (flash device)] Patriot_Memory - 16.01 GB 15.95 GB 315 48 0 Array Status Started Stop will take the array off-line. Parity-Sync in progress. Cancel will stop Parity-Sync. WARNING: canceling Parity-Sync will leave the array unprotected! Total size: 4 TB Current position: 261.91 GB (7%) Estimated speed: 137.6 MB/sec Estimated finish: 453 minutes Quote Link to comment
Joe L. Posted April 29, 2013 Share Posted April 29, 2013 parity 2001b4d2041407574 (sda) 3906249932 * 4 TB - 0 43 0 disk1 [browse /mnt/disk1] 2001b4d2092112206 (sdc) 2930266532 * 3 TB 3 TB 43 0 0 disk2 [browse /mnt/disk2] 2001b4d2032642902 (sdd) 2930266532 * 3 TB 3 TB 43 0 0 flash [browse /boot (flash device)] Patriot_Memory - 16.01 GB 15.95 GB 315 48 0 Array Status Started Stop will take the array off-line. Parity-Sync in progress. Cancel will stop Parity-Sync. WARNING: canceling Parity-Sync will leave the array unprotected! Total size: 4 TB Current position: 261.91 GB (7%) Estimated speed: 137.6 MB/sec Estimated finish: 453 minutes Way better than most. I've never seen speeds much above 75-80 MB/sec on my newer array. Quote Link to comment
mr-hexen Posted April 29, 2013 Share Posted April 29, 2013 Joe, is that on average or at all? my not so new array using nothing special hardware starts over 110MB/sec Quote Link to comment
Joe L. Posted April 29, 2013 Share Posted April 29, 2013 Joe, is that on average or at all? my not so new array using nothing special hardware starts over 110MB/sec It entirely depends on the motherboard, disk controller, and disk hardware involved. See here: http://www.lime-technology.com/wiki/index.php/User_Benchmarks Quote Link to comment
garycase Posted April 29, 2013 Share Posted April 29, 2013 The performance looks about right assuming your 3TB drives are 7200rpm units. With my newest array, using all 3TB WD Reds (which spin ~ 5900rpm), I get ~ 120MB/s in the early stages of a parity check. Yours is at 7%, so it's also very early. As it moves towards the inner cylinders you'll see it slow down a bit (significantly so as it gets ~ 80%). Quote Link to comment
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