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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Will this harm my new SSD? |
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Thread Status: Active Total posts in this thread: 14
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David Autumns
Ace Cruncher UK Joined: Nov 16, 2004 Post Count: 11062 Status: Offline Project Badges: 
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I've been running my main cruncher on a SSD drive for a while it has a power on count of 23589 hours = 2 years 252 days 21 hours
----------------------------------------(It's a 6 Core 1055T that is now running 6 concurrent HCC WU on a GFX560ti) It has re-allocated 11 sectors But it's still going strong ... into obsolescence It's an Intel X25-M G2 80Gb drive Running WCG on a SSD will not wear it out before your PC is rendered obsolete by progress. Dave  |
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Paul Schlaffer
Senior Cruncher USA Joined: Jun 12, 2005 Post Count: 279 Status: Offline Project Badges:
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The answer is "it depends". I was an early adopter of SSDs and I have worn out 2 early models, and am now running 5. The good news is with a flash wear-out it is a graceful failure. The drive simply becomes read only. Higher quality NAND will last longer and the better controllers will reduce writes to the drive. Usually the flash on USB drives is the bottom of the barrel and should not be used for this purpose. Intel has higher quality flash, but in general I would just buy a drive that has 2X the capacity you will use and it should last a very, very long time. The larger the drive the longer it will take to reach the write limit provided you leave the extra space. The higher capacity drives will also provide better read/write performance.
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“Where an excess of power prevails, property of no sort is duly respected. No man is safe in his opinions, his person, his faculties, or his possessions.” – James Madison (1792)
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PunkSkeleton
Cruncher Joined: Aug 2, 2008 Post Count: 2 Status: Offline Project Badges: 
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http://www.anandtech.com/show/6459/samsung-ss...the-endurance-of-tlc-nand
I do not think WCG writes more than 10 Gigabytes of data per day. I've got Samsung 840 Pro 256 GB, which is MLC. Should last 70 years... ;) And no, write frequency does not matter for SSD at all unless you're writing less than a drive block size. Should not be a problem with writing at most every 60 seconds. Plus those drives have an internal cache as well so it probably won't matter at all. |
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[XS]anubis
Cruncher Joined: Jul 15, 2007 Post Count: 2 Status: Offline |
I stopped running CEP2 on my 12core cruncher - after i noticed that each WU did ~32GB of reads and writes on in. SSDlife reported life-expectancy of the SSD after 3 days of CEP2 exclusive crunching dropped by 6 years. From 8 -> 2 :)
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