CrAzY mAD wrote:
As jra at baylink pointed out, no IDE personal
computer drive, from any manufacture, is designed to
run 24x7x365. According to Seagate, a PS (personal storage) drive is
only designed to be on for 8 hours a day, 300 days a
year. This equates to 2,400 hours a year. A ES
(enterprise storage) drive runs 8,760 hours on a
24x7x365 schedule. Those additonal hours increased
the failure rate almost two-fold! "Past work
comparing the reliability of PS against ES drives
reported a filure rate of 25% for 24 IDE drives
against 2% for 368 SCSI drives over an 18 month
period. However, these numbers cannot be treated as a
controlled sutdy due to the very small smaple size for
the PS drives." ~ Seagate whitepaper
There's a very interesting read on this in a Seagate whitepaper (http://www.seagate.com/content/docs/pdf/whitepaper/D2c_More_than_Interface_ATA_vs_SCSI_042003.pdf)
An interesting read, however consider these two points
1 / I have been told by two large storage vendors that they "cherry pick" the best SATA drives for their Enterprise Disk Arrays. You can read this in various ways, I take it to mean that while hard-drives past testing to be sold, they are not all equal (similar to testing and speed rating CPU's)
2 / Hard drives are so reliable now, that even if running a drive designed for personal usage in server based loads, the use of hardware based RAID (Redundant Array of Inexpensive Disks) with online spares / auto rebuild etc approach this risk toward zero. One should be far more worried about software bugs and operator error than the hardware!
Oh, and always keep off-site backups
Steve
_______________________________________________ mythtv-users mailing list [EMAIL PROTECTED] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
