That makes perfect sense. BTW, the only purpose of a RAID backup is to prevent a single point of failure (like a disk failure) resulting in lost backups.
One thing to pay attention to is the MTBF numbers for disks. I was a firm believer in Seagate Barracuda disk until I had a whole number of them fail over a few months. Speaking Seagate tech support, they explained that the SMART data on these disks showed they had more than the 3,000 hours MTBF and hence I should have expected them to fail. I couldn’t believe what they told me; running their disks 24 hours/day, they expected failures in 1/3 of a year. They were right, look at the SMART data on Seagate disks and you will see read write errors in the 10’s of thousands or more. After that I use Western Digital RED disks which are designed for 24/7 NAS applications. Looking at the disk SMART data, I see 0 read/write errors. Regards, John > On Nov 29, 2015, at 3:37 AM, [email protected] wrote: > > John Syne <[email protected]> wrote: >> [-- text/plain, encoding quoted-printable, charset: UTF-8, 156 lines --] >> >> Yeah, but rsync only gives you a snapshot and not a history of your backup. >> When I really mess up, I want to go back to the state of my machine 15 >> minutes ago, or two days ago. This has saved me a lot of head scratching, >> trying to find out where I messed up. I really like the way timemachine > > I use an rsync based incremental backup system (I wrote it myself > having used rsnapshot for a while, rsnapshot is OK but I think it's > too complex). > > I do hourly incremental backups locally to another disk on my main > machine and I do daily incremental backups to a remote machine. The > daily remote backups get thinned out as they get older so there are > daily backups for the last month, then monthly ones for 12 months, > then yearly ones. > > -- > Chris Green > · > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
