Every computer system needs a backup strategy to cope with different scales and types of disaster. How to work out what needs to be preserved, and how to do about reducing the risk of data loss.
RAID
Consider the fidelity of backup copies, the speed of a backup method, and the risk of losing the contents of that backup. And test backups by restoring samples from them.
Selecting a RAID level to preserve file integrity can be confusing. Here’s a guide, complete with the ifs and buts.
How can you squeeze recovery data into smaller storage space than you’d need for a second copy of a file? Using codes, explained here.
What happens if you can’t access your Mac or its local backups? That’s what offsite backups cover – and you need them however small your system might be.
The plan was simple: replace my 8 year-old Promise Pegasus RAID system with a shiny new SSD RAID system, for Time Machine backups. What could go wrong?
In the market for replacement backup storage? It’s a gamble, and you probably won’t know whether you made the right choice for the next year or more.
Should you enable TRIM, and what is it? Do you need to turn wear levelling on, and what about fragmentation on SSDs? Some mysteries explained.
Even with 4 ports on my Mac, I’m running out. What about putting a couple of my 1 TB SSDs into a single enclosure? Here’s a cost-effective answer.
Migration is pain: you can spread it out over days or weeks, or get it over with in a much shorter period. Moving your Time Machine backups also requires great care.
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