08-01-2012 07:16 PM
I noticed the the other guys red series disks are being flogged with 1,000,000 hour MTBF which is much higher than I have expeienced.
One reason my values are lower is that every time I get a new hard disk the old one ends up as a spare in case of a failure.
So far, knock on wood, there have been more more problems with sick disks following the 2x 500 GB disks that croaked. I have more than doubled the storage since those died.
I will be using more disks on my server so it can be used for backups etc. I am thinking of a SSD for the boot disk to speed up the web server a bit,
Given the number of operating hours in a year, 1,000,000 is a lot of years, I am happy to have disks rack up 100,000 power on hours as by that time that level is reached the disk is obsolete.
I have noticed that no disks larger than 3 TB are available, suggesting that the current perpenedicular design has hit the wall.
Lots of ideas out there, so my thinking is using lots of 3 TB disks for storage
08-02-2012 12:44 AM
08-02-2012 05:11 AM
I have a somewhat smaller population of disks, and I only procure a disk or 2 a year on average.
My ST2000DL003 is the last disk I bought, so far so good.
Probably get a 3TB disk to add to the existing 2 TB disk, I put big disks on the server for backups etc
AFR is another metric some vendors use. 1 million inplies a very low AFR
08-04-2012 05:20 PM
08-04-2012 05:46 PM
I am aware of statistics, I have taken all of the courses and lots of advanced math.
I am more interested in the hard error rate, the ES drives are better at 10^15 but I wonder if that could be bumped up with modern high capacity disks
Right now for bulk storage, these low cost green series disks seem adequate. The disk is not very havily loaded most of the time, depending on the web server load.
it hosts download content for my chess site
I am more cynical that a disk can last 100,000 power on hours or not