Messages in this thread | | | Subject | Re: ext4 features | From | Trond Myklebust <> | Date | Thu, 06 Jul 2006 22:30:47 -0400 |
| |
On Thu, 2006-07-06 at 22:15 -0400, Bill Davidsen wrote: > Trond Myklebust wrote: > > >Nobody gives a rats arse about backups: those are infrequent and > >can/should use more sophisticated techniques such as checksumming. > > > Actually, those of us who do run production servers care vastly about > backups. And beside being utterly unscalable (checksum 20 TB of files > four times a day to find what changed???), you would have to remember > the checksums for all those files.
It is trivial to check if your last backup of the file was started within 1 second or so of the last change made to the file, in which case your backup program needs to perform a more thorough check. That sort of thing is possible when you are talking about a daily (or even hourly) backup.
Cheers, Trond
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |