![]() ![]() That way if I upgrade my Mac, I can blow away my Mac, use a USB installer to lay down the new OS, and restore my data via Setup Assistant, which will use Time Machine as its source for a restore. Back up my NAS to an external USB SSD, and store that backup offsite.Back up my Mac to my NAS over Ethernet (CAT6).Back up my Mac to an external USB SSD via Time Machine. ![]() That actually may be more feasible and cheaper for you unless you already have a NAS set up. This is what I do, outside of connecting a simple USB SSD to my Mac and backing up my Mac to that disk via Time Machine. That way, the speed of the writes will be limited to the speed of the switch/router. It is always best for that if you are hardwired (CAT 5/5e/6/6e/7) cable to your switch/router, and back up via that. The second issue is that that speed will degrade the further you are away from the switch or router providing that WiFi speed, so your backups will take longer, and could affect the consistency of the writes of your backups, let alone writes to the NAS. ![]() However, if you are backing up your Mac via Time Machine to your NAS, and doing it over 802.11g WiFi, that connection is 54Mbps at the most, so your speed will be limited to the fastest that the Mac will use over WiFi. For example, if you have a switch or router that is 100Mbps or even 1Gbps, and the NIC in your NAS supports those speeds, you're great. Disks aside, especially when it comes to Time Machine, let alone anything with a NAS: Your write speeds will be limited to the slowest negotiated speed on your network. ![]()
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