On 27/01/2019 16:59, Kenneth Porter wrote: > --On Sunday, January 27, 2019 12:22 PM +0000 J Martin Rushton via CentOS > <centos@xxxxxxxxxx> wrote: > >> Backups on or by the computer might protect you from disk failures, but >> are useless in case of fire or theft. > > With ransomware and rarely-used files, it's also important to have > generations of backups, in case an infection clobbers your recent > backups of files before you detect the infection. > Yes, and not on the same disk! I have three USB disks, each of which is capable of holding half a dozen backups. Disk 1 has slots 11-19, disk 2 21-29 and disk 3 31-39. Backups are done in theory to 11, 21, 31, 12, 22, 32 ..., though in practice I may dump extra backups on the same disk if I'm doing configuration or upgrade work. -- J Martin Rushton MBCS
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