https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/ SoftRAID Discussion Board en-US Mon, 27 Apr 2026 14:25:15 +0000 wpForo 60 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2920 Wed, 17 Oct 2018 07:16:22 +0000 Managing Disks - Certify, Verify, Initialize SoftRAID Support https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2920 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2917 Wed, 17 Oct 2018 02:57:45 +0000 Managing Disks - Certify, Verify, Initialize calbear88 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2917 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2630 Thu, 22 Mar 2018 02:39:17 +0000 Managing Disks - Certify, Verify, Initialize SoftRAID Support https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2630 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2629 Wed, 21 Mar 2018 22:28:59 +0000 Managing Disks - Certify, Verify, Initialize hbomb28 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2629 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2628 Wed, 21 Mar 2018 22:21:01 +0000 FireWire is way too slow. You need a faster bus! Over FireWire, 3-4 days each seems fast, even. Thunderbolt will allow a drive to maintain its 150MB/s throughput during the certify. FireWire is limited to 55MB/s. ]]> Managing Disks - Certify, Verify, Initialize hbomb28 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2628 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2447 Tue, 19 Dec 2017 06:26:00 +0000 Managing Disks - Certify, Verify, Initialize SoftRAID Support https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2447 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2443 Mon, 18 Dec 2017 18:58:38 +0000 Managing Disks - Certify, Verify, Initialize Dhanson https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2443 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2442 Sun, 17 Dec 2017 21:24:53 +0000 Managing Disks - Certify, Verify, Initialize SoftRAID Support https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2442 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2437 Sun, 17 Dec 2017 12:48:04 +0000 That’s rather strange-the length of time that your certify is taking. I usually certify multiple disks simultaneously and I’ve done 3 x 10TB (WD Red 5400 RPM) which combined only ran for ~5 days. Hi Jon, Not sure why it's taking so long. I'm certifying 8 TB WD Red 5400 RPM in an Akitio Thunder 2 Quad but I'm not using the other 3 slots because I wanted to try one drive first and was worried that sharing the bus might slow everything down. I have a OWC thunderbolt 2 hard drive mount that I can try to see if there is any speed change.]]> Managing Disks - Certify, Verify, Initialize viperss https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2437 https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2434 Fri, 15 Dec 2017 14:39:40 +0000 You recommend 3 passes when you certify a hard drive; is there any statistical advantage to this versus 1 pass? I ask because I just finished certifying an 8 TB hard drive via thunderbolt 2 and it took almost a week. It really seems impractical to run 3 passes especially as hard drives continue to get larger. I have 4 more 8 TB hard drives to certify and I would like to know the confidence/risk of 1 pass versus multiple passes. That’s rather strange-the length of time that your certify is taking. I usually certify multiple disks simultaneously and I’ve done 3 x 10TB (WD Red 5400 RPM) which combined only ran for ~5 days. My certification setup is a CalDigit T3 Thunderbolt 1 and a mid-2011 Mac Mini 2Ghz i7QC. This machine also runs our Retrospect backups to a Areca ARC-8050T1 array each night. Most 8T certifications run in ~3 days. Faster drives will certify faster. I’m testing some Toshiba 7200 NAS drives and found that they are about 20% for the same size, IIRC. I haven’t tried using a TB3 Mac with a TB3 enclosure, but would not expect to see faster times since the process is limited by disk speed. Cheers, Jon]]> Managing Disks - Certify, Verify, Initialize j.a.duke https://forums.softraid.com/managing-disks-certify-verify-initialize/certify-effective-number-of-passes/#post-2434