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Thread Status: Active Total posts in this thread: 19
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adriverhoef
Master Cruncher The Netherlands Joined: Apr 3, 2009 Post Count: 2356 Status: Offline Project Badges:
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If a usb thumb drive fails simply throw it away Or — at least — try to recycle. The world would be a better place. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Eliminate sandisk from that list. Go for either crucial/micron or samsung. I have reasons:
3 years ago this month I purchased a crucial m500 for my computer and have mainly been crunching cep2, until this hiatus, but I was able to go through 67% of my ssd's life with well over 100TB written to the drive. That's about 2% every month. It was actually much worse than that makes it out to sound. I found out about crucial's momentum cache that caches most I/O work to ram about 10 months ago. Since I found it the drives life had only decreased a full 1%. For samsung and crucial there is a tool that helps significantly, RAPID cache for samsung and Momentum cache for crucial/micron. about 3 months ago I moved my m500 120gb to my 2009 linux laptop to continue FAH there and got an mx300 and a 750evo, both 500gb, for my desktop and new laptop, respectively. All are crunching currently and I enabled the rapid and momentum cache on both drives. Now a few months in and they are both under 1TB written and have 100% health remaining. Linux can't make use of crucial momentum cache, not sure about samsung drives. So my m500 will be on its way out in the near-ish future. It should still have a couple years left since the laptop is 2 threads instead of 8 threads and won't be doing cep2 when they start rolling out again. TL;DR Only get an ssd for a crunching rig if you can enable some form of ram caching software. In my experience it does worlds of good for the health of your drive. |
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Sgt.Joe
Ace Cruncher USA Joined: Jul 4, 2006 Post Count: 7851 Status: Offline Project Badges:
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If a usb thumb drive fails simply throw it away I have a system (Dell 2950) running Linux with 8 cores (Dual Intel(R) Xeon(R) CPU E5320 @ 1.86GHz) which has been running entirely on a 16gb Sandisk thumb drive - operating system and everything else since 5-19-2015. For many months it ran exclusively MCM1 and when FAH2 restarted it has run that since. I don't know how long it will last, but for $5.99 US I can get another one. The other nice thing is I am not using any electricity for a spinning hard drive. I have to thank widdershins for letting me know this was possible. Cheers
Sgt. Joe
*Minnesota Crunchers* |
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ThreadRipper
Veteran Cruncher Sweden Joined: Apr 26, 2007 Post Count: 1324 Status: Offline Project Badges:
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You could buy an SSD and then create a RAM disk, placing the BOINC data directory there so that writes are not wearing out the SSD. If you don't crunch CEP2, at the moment you should not need a very large RAM Disk. If your PC loses power though you will lose all data on the RAM Disk, so RAM Disk software usually have a feature to write back to disk with some interval (say, once a day or so).
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SiKTheGreatOne
Cruncher Joined: Aug 4, 2009 Post Count: 24 Status: Offline Project Badges:
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If a usb thumb drive fails simply throw it away I have a system (Dell 2950) running Linux with 8 cores (Dual Intel(R) Xeon(R) CPU E5320 @ 1.86GHz) which has been running entirely on a 16gb Sandisk thumb drive - operating system and everything else since 5-19-2015. For many months it ran exclusively MCM1 and when FAH2 restarted it has run that since. I don't know how long it will last, but for $5.99 US I can get another one. The other nice thing is I am not using any electricity for a spinning hard drive. I have to thank widdershins for letting me know this was possible. Cheers Did you do anything else besides installing on the USB drive, like setting up a RAM disk? I was going to try this out with Linux Mint - is the proper method to create one live USB and install to a second one? ![]() |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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I now buy only Samsung 3D drives (850 EVO or 850 Pro). I have had two Crucial MX 100s and two Crucial MX 200s fail, though I am still using a third MX 200 as a video recording drive. But their designs are just not reliable enough for me.
And for high write rates, I often place the BOINC data folder on a ramdisk; Primo Ramdisk Pro is the best, but Dataram works and costs less. However, it may be easier to use a write-cache; PrimoCache works well for me, and if you set the write-delay to something like a few minutes (I often use a few hours), it will save your SSD. But the only project here that needs it is CEP2, and that has been missing in action so long that I doubt it will return. The only time I need write protection now is for the CPDN project. |
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Sgt.Joe
Ace Cruncher USA Joined: Jul 4, 2006 Post Count: 7851 Status: Offline Project Badges:
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If a usb thumb drive fails simply throw it away I have a system (Dell 2950) running Linux with 8 cores (Dual Intel(R) Xeon(R) CPU E5320 @ 1.86GHz) which has been running entirely on a 16gb Sandisk thumb drive - operating system and everything else since 5-19-2015. For many months it ran exclusively MCM1 and when FAH2 restarted it has run that since. I don't know how long it will last, but for $5.99 US I can get another one. The other nice thing is I am not using any electricity for a spinning hard drive. I have to thank widdershins for letting me know this was possible. Cheers Did you do anything else besides installing on the USB drive, like setting up a RAM disk? I was going to try this out with Linux Mint - is the proper method to create one live USB and install to a second one? I have no RAM disk. I simply used Pendrive to create a bootable USB with Linux mint, plugged it in and booted. From then on it was just like a normal install. There is only one USB, not two. Cheers
Sgt. Joe
*Minnesota Crunchers* |
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SiKTheGreatOne
Cruncher Joined: Aug 4, 2009 Post Count: 24 Status: Offline Project Badges:
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I have no RAM disk. I simply used Pendrive to create a bootable USB with Linux mint, plugged it in and booted. From then on it was just like a normal install. There is only one USB, not two. Cheers I ended up using a bootable USB to create a permanent installation on a second USB. I made sure to use no swap space in hopes of extending the life of the USB. So far, everything is working well. ![]() |
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sonic79
Cruncher Joined: Nov 29, 2012 Post Count: 3 Status: Offline Project Badges:
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I have a Samsung 850 Evo2 M2 and it flies! I've been using it for a year and a half and tests indicate it still has 98% life span.
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