Hard Disk Failure Much Higher than Reported
Carnegie Mellon University recently conducted a study that found that HD failure rates are actually much higher than reported. If you are in the market for a new drive, I’d suggest giving this one a good read.
The Carnegie Mellon study examined large production systems, including high-performance computing sites and Internet services sites running SCSI, FC and SATA drives. The data sheets for those drives listed MTTF between 1 million to 1.5 million hours, which the study said should mean annual failure rates "of at most 0.88%."
However, the study showed typical annual replacement rates of between 2% and 4%, "and up to 13% observed on some systems."
http://www.hardocp.com/news.html?news=MjQ0NDIsLCxobmV3cywsLDE=
Carnegie Mellon University recently conducted a study that found that HD failure rates are actually much higher than reported. If you are in the market for a new drive, I’d suggest giving this one a good read.
The Carnegie Mellon study examined large production systems, including high-performance computing sites and Internet services sites running SCSI, FC and SATA drives. The data sheets for those drives listed MTTF between 1 million to 1.5 million hours, which the study said should mean annual failure rates "of at most 0.88%."
However, the study showed typical annual replacement rates of between 2% and 4%, "and up to 13% observed on some systems."
http://www.hardocp.com/news.html?news=MjQ0NDIsLCxobmV3cywsLDE=
No comments:
Post a Comment