Redundancy

[Jerry — MacSolutions]

I do a clone to an external drive using Carbon Copy Cloner and, also backup my database to iCloud as well.  I do not have a backup machine at the moment.  ��

—Jerry

> On Apr 16, 2022, at 11:38 AM, William R Vogel <hightrailrider at icloud.com> wrote:
> 
> To start, I'm not bashing anyone with this, just passing on something I learned the hard way.
> 
> I've been running Xtension since it was supplied on floppy disk and would run on a 68000. ;) As the system expanded I became more dependent on it.
> 
> Then I had a catastrophic HDD failure on the PPC Mac that I was running at the time. It took me a while to recover and caused serious inconvenience during that time.
> 
> Coming from a telecom background, I remembered that all common equipment in a switch had backups, and inter-office trunks also had spares. Since Xtension had become something I depend on, I took a lesson from my telecom experience.
> 
> Some background: I've always run Xtension on dedicated Mac. This means that I'm fine with a 4-5 year old Mac for the job. (I often use the older Mini when I upgrade my desktop.) I can get a second, used, Mini for a reasonable price. I use a KVM and USB switch for the monitor, keyboard, and CM-11. Both Minis are connected to my LAN and can be accessed with screen sharing.
> 
> On a monthly basis I power up the backup mini in Target disk mode and copy the Xtension database to same. (Kinda stumbled on that one when the database moved to the Documents folder.) Otherwise I keep the backup Mini powered down to protect it from power issues.
> 
> Besides protecting me from hardware failures, this setup allows me to upgrade the primary system and let it run for a while before copying to the backup. So if there is a serious issue, I can just switch to the backup Mini, which still has the old software and database.
> 
> I hope this might be helpful.
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