Dave Sherohman <[email protected]> writes: > On Tue, Sep 29, 2020 at 10:55:51AM +0700, Olivier wrote: >> I think that independant disks is better than any RAID thing that >> would either waste some storage, or render the array unusable if any >> one disk gets faulty. > > If we go disk-based/vtape for storage, I'd be looking at RAID 1 for > protection against disk failure (which we've had trouble with in > production systems in the past). Definitely not going to use anything > that would increase exposure to data loss, of course.
But if you don't use RAID, you can double the number of backups you are keeping, that includes older versions. That is a risk calculation between having secure backups and loosing the backups data as same time as the primary data. >> I have 8 disk bays, one disk for system, holding disk and a copy of >> the final state of the accounts about to be deleted. Another disk for >> some additional holding space and a second copy of the deleted >> accounts and the 6 other disks for vtapes. > > Are those hot-swappable? I've made a couple half-hearted attempts at > hot-swap disk in the past, but never managed to make it work myself. No, but I never dug that very much. i need to replace a disk or mount and older disk about twice a year, so I can reboot at that time. >> I have been looking at some solution that would run on the user's >> workstation and that would push a backup on some server and use Amanda >> to keep a backup of that server. > > I've got a couple developers who are backing up their workstations via > rsync to the FreeNAS server, which sounds like basically the same > concept. They seem happy with it, although we've never needed to do a > restore on any of that data. Developpers can also be told to let their workstation on all the time, they can understand the reason why, then you can use Amanda. Administrtive staff do not always understand these details. Best regards, Olivier --
