Re: How to temporarily make all mailboxes read-only for backup purposes?
I would like to avoid making a local deep copy first. This essentially doubles the required storage on the local disk and it also wears down the disk much faster as I will write gigabytes of data onto the disk every 24 hours.
I would prefer an option which allows the backup program (Borg backup in my case) to only read the local data and send it to the remote backup space directly.
Matthias Nagel said on Sat, 25 Nov 2023 11:51:09 +0000
I would like to avoid making a local deep copy first. This essentially doubles the required storage on the local disk and it also wears down the disk much faster as I will write gigabytes of data onto the disk every 24 hours.
I would prefer an option which allows the backup program (Borg backup in my case) to only read the local data and send it to the remote backup space directly.
Is the remote vendor going to take the same care in preserving your data as you would? You could buy two 2TB spinning rust external hard drives for seventy bucks each, so if one gets borked you have the other. If you desire offsite, keep one in a bank safe deposit box high off the ground to prevent water damage.
https://www.newegg.com/model-wdbyvg0020bbk-wesn-2tb/p/N82E16822234389?Item=N...
So your system disk doesn't get written at all, and doesn't get filled up with backups. If every 24 hours you add "gigabytes of data", it should take many, many days to fill up a 2TB spinning rust drive.
Once you have your own copy, there's nothing preventing you from duplicating it on the remote server, as long as your data is encrypted. Now if your vendor does what so many vendors do, and screws up, you're still the master of your own data.
SteveT
Steve Litt
Autumn 2023 featured book: Rapid Learning for the 21st Century http://www.troubleshooters.com/rl21
On 26/11/23 08:02, Steve Litt wrote:
Is the remote vendor going to take the same care in preserving your data as you would? You could buy two 2TB spinning rust external hard drives for seventy bucks each, so if one gets borked you have the other. If you desire offsite, keep one in a bank safe deposit box high off the ground to prevent water damage.
As a matter of habit I've kept every hard disk I've ever used since the 1990s. Going back to one after it has been in storage for 5 years has a high probability it won't work. They either won't fire up at all or there will be major problems with the data.
As a matter of policy I suggest that you keep moving and aggregating the contents of old drives to the obviously much larger new drives every couple of years.
Incidentally, to save me the bother of writing it, is there a program that can scan drives and extract and classify unique copies of 'useful' files such as photos and emails - probably keeping their MD5 and metatdata and in a SQL database - maybe even the binary file blob as well.
jeremy ardley via dovecot said on Sun, 26 Nov 2023 08:25:07 +0800
On 26/11/23 08:02, Steve Litt wrote:
Is the remote vendor going to take the same care in preserving your data as you would? You could buy two 2TB spinning rust external hard drives for seventy bucks each, so if one gets borked you have the other. If you desire offsite, keep one in a bank safe deposit box high off the ground to prevent water damage.
As a matter of habit I've kept every hard disk I've ever used since the 1990s. Going back to one after it has been in storage for 5 years has a high probability it won't work. They either won't fire up at all or there will be major problems with the data.
As a matter of policy I suggest that you keep moving and aggregating the contents of old drives to the obviously much larger new drives every couple of years.
Yes! An excellent idea.
SteveT
Steve Litt
Autumn 2023 featured book: Rapid Learning for the 21st Century http://www.troubleshooters.com/rl21
participants (3)
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jeremy ardley
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Matthias Nagel
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Steve Litt