On Fri, 1 Feb 2002, Heinz J . Mauelshagen wrote: > > It is quite intersting how many people don't take backups even though > almost everybody claims to know that backups are crucial and some of them > know that they are still, even though they might have RAID in place. > I think the reason most people don't do backups is because, hard disk drives are really big and really cheap. Tape drives are really expensive, media is also expensive and frankly tapes are very small for the cost. Effective backup can double the cost of a system and requires time to manage it. For the "home" market its just to much. The only system just about affordable is DAT tape, DLT blanks are about double the cost for the storage ammount. I bought a DDS4 drive for "home" use, 1 week after I got it I had my laptop stolen, so it justified its cost pretty fast :-) A 60 gig hard disk, costing 100 pounds requires 2-3 DSS4 tapes to backup At 15 pounds each, one round of backups cost 1/3 of the cost of the disk multiply that by the number of disks, add in the hassle factor of changing tapes. Auto changers are nice, but alot more! For "PC" based systems the backup costs are oftain higher than the price of the machine, and thats hard for people to justify. If anyone suggests they use "hard drives" to back up I will scream, cost that system just don't scale, and yup you have an old copy but do people ever update it? Yes... when they get another hard drive... however before that happens they have put the old on back into service because they needed a little more space ;-) All in all, backup is expensive/slow, my sister/mom/dad ain't going to pay that kind of money for home... For Work its slow, fine if your a sysadmin and that your job... If you are a sysadmin you probably don't get to do bugets, your manager does, and they don't understand the cost and aways want to cut corners to keep costs down, XXX is a "developement" system so we don't need to back it up cos its not "production" etc etc. Store all your data on the network file server, (which is aways full with p0rn) and connected via a doggie network, taping 3 minutes to access the smallest file, so people store data on the local machine, and forget to copy it back to the network... This why people don't have backups in my book. Sorry I didn't mean this to become a rant, just got on a roll... James _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
