On 12/29/2016 01:35 AM, jdd wrote:
there is an other thread around that shows it's not bullet proof and strong advisory on the raid wiki not to use consumer grade disk. This alone makes it expensive. I can use several disks because I already have then in stock, so they are not free but cheap.
Yes, I've read this, "mostly FUD", and I always wonder if it is some disgruntled kid who picked up a keyboard after a failure and wrote the sky is falling... I've never seen much difference in consumer grade or server grade (and many manuf, WD in particular, put out disks under the same label as both consumer and server grade) Other than the rash of seagate failures about 6 years ago, I've rarely had disks run less than 40,000 hours (that's about 4.5 years of spinning) One old Maxtor DiamondMax 10 on a suse 11.0 box has been spinning for twice that, and another Seagate Barracuda ST3750528AS with 57806 hours and still ticking... My experience with isn't much worse than yours. I've probably lost less than 10 disks over 16 years out of 4 servers I have continually running. I've lost 'server' grade drives as quickly as I've lost consumer drives. In the quantity I buy, about 3-5 per year for all purposes, not just server, you are not going to see a difference. I'm sure if you are buying hundreds of disks per year, you will probably see a statistical benefit from the MTBF of the 'server' grade disks. I remember it seeming complicated at first, but there are really only a handful of mdadm operations. After having done it a time or two, screwed it up and time or two, recovered from my screw up (wiping partition tables, intentionally creating degraded arrays with 'missing' disks, moving non-raid systems to linux-raid, etc..) there really isn't much to it -- other than getting over the anxiety of issuing the 'mdadm foo' command to begin with. Good luck with your sleeping hardware. Either way you go, whatever 'grade' disks you use, you can't go wrong with linux-raid. -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org