Sorin Srbu wrote: >> -----Original Message----- >> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf >> Of Benjamin Franz >> Sent: Thursday, January 14, 2010 2:12 PM >> To: CentOS mailing list >> Subject: Re: [CentOS] Backup server >> >> If you have any budget at all, invest in bigger drives. 7200 RPM 1 TB >> RAID rated drives can be bought for $160 each. Desktop rated 5900 RPM >> 1.5 TB drives (which you can probably get away with in a dedicated >> backup server since you don't care a lot about speed and can tolerate >> long pauses for sector repair) can be bought for $110 each. Check Newegg. > > I haven't got a budget really. Today I asked for a new group-printer today and > the boss looked pained... 8-} SATA disks fit into 'office supply' budgets. > I opted for the proven 500GB-sized disks and got more of those instead. I've > had a handful of 750GB-drives die on me recently. Go to the vendor's web site, enter their serial numbers and get an RMA for a free replacement. Every vendor has had bad batches. > Somehow it feels the > technology isn't quite there yet for the bigger drive-sizes. Anybody remember > the IBM Deskstars in the early 00's...? They replace them too, within the warranty period. This is the reason you are making backups, remember. Things break. > Also, my experience is the more smaller disks you have, the faster they get. > Less to write to each I guess. That's true when the heads seek independently. With raid5 you lock onto the slowest of the set unless you have a very large number of drives. >> Second, to maximize 'depth' of backups you should use a 'Tower of >> Hanoi'-like backup system. > > Good advice, thanks! Backuppc will take care of that for you. -- Les Mikesell lesmikesell at gmail.com