Backblaze's results seem to show a similar trend, regardless of the fact that they compared apples to pears. Reallocated Sector Count SATA Downshift Error Count or Runtime Bad Block Reported Uncorrectable Errors Uncorrectable Sector Count Turguy Goker Assume that we have 2TB and 6TB drives in a RAID6 using Historically, the field MTBF, which includes all returns regardless of cause, is typically 50-60% of projected MTBF. Backblaze has good redundancy in place and a simple and efficient system for replacing drives. weblink
Milk Manson Backing up on Thanksgiving and Christmas really isn't enough. Vincent Hello, I think this type type of study falls in the statistic branch called survival analysis because some of the hard drive have not failed yet or have been replaced BtotheT Seagates failure rates for the last decade have been such that I don't touch um. Background scrubbing was found to be effective in correcting these errors. SCSI, SAS, and FC drives are more expensive than consumer-grade SATA drives, and usually used in servers and disk arrays,
And why don't Seagate and WDC release info? Mirimon if you have multiple variances one can simply identify the deviations of each and then compare relative closeness to each standard deviation (hand for when all the data entries being Meaning, that Backblaze, could have easily "varied" in to a better than average population of Toshiba drives(there were only 200 some) than Seagate drives(31,000). 3) You should not be running desktop This is the way of life.
Archived from the original on 26 December 2014. ^ "Barracuda 7200.10 Serial ATA Product Manual" (PDF). Mark smartctl should give you everything you need, take a look at the smartmontools damon Michael Schlachter Given the amount of raw data available, might this be a good candidate for The data was always available in the data files we publish on our Hard Drive Data web page, but now we’re reporting the data here too. Mtbf Hard Drive Vs Ssd What can we do in this case?
Why buy cheap Seagate desktop drives instead of Surveillance or Enterprise NAS drives that are designed to handle all the vibration? S622 In general, I've worked with quantities of several thousand from each vendor and every year I have to add to our storage pool, I go by what we have deployed Start with SeaTools (for DOS) --> SeaTools | Seagate Burn ISO to CD with ImgBurn --> The Official ImgBurn Website Boot with SeaTools CD. great post to read Ben Jolly see the field "max # in service" otherwise, as stated at the end of the article, they release this information in its raw data for you to process anyway
For instance, for HDS723030ALA640, at 25000 hrs, we would expect 97.8% to have survived (2.2% failure rate). Hard Drive Failure Symptoms These factory remanufactured drives lasted 356 days on average (1 year). I'm not seeing that important point highlighted here. Paul Biedler Yes, sorry, the numbers next to the hard drive models are the "characteristic lives", in hours Alderin I had a conversation with a non-IT Sci-Fi fan who was thinking
And you can try it for free today. http://knowledge.seagate.com/articles/en_US/FAQ/174791en?language=en_US To do that we'd need a lot more data points to get results we could rely on. Hard Drive Failure Rate Let's stay focused on SMART stats and take a look at the table below which shows percentage of both failed and operational drives, which are reporting a RAW value that is Hard Drive Failure Fix Hard drives may also be rendered inoperable through data corruption, disruption or destruction of the hard drive's master boot record, or through malware deliberately destroying the disk's contents.
timothyhood Sure, back up your data to prevent loss, but what about the cost of having to restore data and replace dead drives? http://webdtools.com/hard-drive/how-to-fix-hard-disk-failure.html Our environment and software minimize the risk of individual disk failure, so it makes no sense to spend more money on enterprise drives for example. We are looking at writing a post to look at this topic to examine these variables and see were that trade-off point lies. All hardware will fail at some point, the industry designs it to fail or else there's no industry. Mtbf Hard Drive Comparisons
I switched them all out for Hitachi drives and haven't experienced a single failure since. https://www.backblaze.com/hard-drive-test-data.html cofinoa Thank you for sharing this info. i.e. check over here Moreover it also suggests that there are different classes of failure with different rate behaviors.
Our drives are racked, and not tossed around like some laptops… I saw the same thing you did on spin retry errors, but like you we only observed this a few Hard Disk Drive Mtbf Backblaze, on the other hand, comes right out and says what it has been testing and what the failure rates look like.I've criticized Backblaze in the past for using data sets I left the position 2 years ago so I don't have the actual numbers in front of me but we came to a few conclusions: A word of note, the term
Hitachi 2.5″ drives: bad trash. I just went to my Dads house and hooked up a USB drive to his router and then I got offsite storage for my server. Another ES.2 stopped working after almost 6 years of usage. Annualized Failure Rate Calculation First, their bias could be dead wrong or unfounded… Second, as this report shows, different models typically have more variance with failure rates than different manufacturers do.
Circuit failure: components of the electronic circuitry may fail making the drive inoperable. The failure rate on many Seagate drives is simply abominable, from 9.5% on certain 1.5TB drives to 23.5% on the old 7200.11 series, to a whopping 43.1% on the Seagate 7200.14 Milk Manson Who cares whether the drive is from Costco or Amazon? http://webdtools.com/hard-drive/hard-disk-slow-transfer-rate.html We noticed that "desktop drives" are meant to be used for smaller throughput and have a higher failure rate if they are overbooked.
More reliable. 3TB? Head parking might be a good example of how the two types of drives are different, but it's not a good example if you're trying to show these stats are slanted Milk Manson If you're so freaking smart why don't you tell us where to get better numbers than right here. Let me try to at least explain the latter: Let's take engine oil.
I took all of the failures together for 2015 and then ran an input analysis which suggested that a Beta function was a better fit. Wes Kalata Have you considered using WD Purple drives? I currently have a 1.5TB WD that is from 2009 that I have used constantly (24/7 streaming of audio and video media over a network) and it hasn't given me any Roamer Have you done any correlation regarding which SMART attributes, or -with multiples - which combinations of SMART attributes are more likely to result in failure?
Now there is another way I could have fixed this and would have required less steps by using gnt-node evacuate. This stat is the cumulative count of the number of times the recording head “flies” outside its normal operating range. No, it's because they don't want people drawing ANY conclusions. MightyDrunken Well you would say that. ;) Noah J.
Hitachi sold its drive business to Western Digital last year, and Western Digital subsequently sold the 3.5 inch drive division to Toshiba, and it's too soon to know whether this has The 6TB drives give us 270TB Storage Pods, giving us 50% more storage at the same overall cost per GB. David But certainly statistics on 4500 drives is significant. Turguy Goker Hi Andy If possible, it might be useful to see the following SMART data collected with time stamp so one can analyze if the errors are random or collated
If Segate sells the most hard drives, it will have the most failures even if its drives fail at the same rate as other HDDs.