said David C. Rankin via tde-users: | If you are worried about the SSD as indicated by your "wear leveling" | comment, if you haven't run a SSD before, the concern is now very close | to a non-issue. The MTBF data and drive lifetimes are based on writing | 70% of the drive every 24 hours (in your case with a 1TB drive, you | would be reading/writing/deleting 700GB every day). If you are | replicating large databases all day long, maybe, but for a normal user - | never happens. Thanks; alas, my experience varies from yours. I've dealt with four SSDs. A couple of years ago I tried to do what I'm trying to do here, with a WD 500gb SATA SSD and it worked perfectly for about three weeks before it didn't work anymore. It was very fast to boot but also very fast to die. This spring I tried to use a 1tb Crucial PCIe M.2 NVME in a Raspberry Pi and it died almost instantly. (To their credit, Crucial replaced it quickly and without complaint, and the replacement continues to work well.) So there are circumstances under which they fail without so much as a by-your-leave, and there are no symptoms ahead of time. Indeed, they seem pretty delicate under those circumstances, so I'm trying to identify and avoid those. | I've beaten the tar out of SSDs probably much more than most compiling | big projects almost daily (like building PHP from source, etc..) for | years and never had any issue with wear. Glad to hear it. Still, I hope to avoid even theoretical problems; at this point I've experienced a 50 percent failure rate under light use. So I'm trying to minimize writes to the thing and, where they are necessary, to leave lots of space so that for the forseeable future every write will be to virgin space. The drive is rated for 600 writes, and I expect it to be years before it has to rewrite even once, hence a terabyte for less than 60gb of data. My little script that writes every three seconds won't go there. Nor is there any reason for it to do so -- in that case, the write speed of an old MFM drive would be sufficient. | So when I started with SSD I had concerns and was worried they may fail | before the normal 5-10 years I get from good spinning drives. I've now | put 5-10 years of abuse on a dozen SSDs, and today's drives are every | bit as robust as the best rotating kind -- and much better today than | when first introduced. Good to know. I'm not exactly risk-averse; the archives of this list would demonstrate the new and imaginative ways I've found to break things. But if I can prevent unrecoverable failure at little or no cost, I'd just as soon do it. | Lesson: throw the SSD in the box and then drive it like you stole it -- | you won't have any problems... Thanks for the encouragement. -- dep Pictures: http://www.ipernity.com/doc/depscribe/album Column: https://ofb.biz/author/dep/ ____________________________________________________ tde-users mailing list -- users@xxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxx Web mail archive available at https://mail.trinitydesktop.org/mailman3/hyperkitty/list/users@xxxxxxxxxxxxxxxxxx
