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RAID

File Integrity 11 : Which RAID levels enable file recovery?

Selecting a RAID level to preserve file integrity can be confusing. Here’s a guide, complete with the ifs and buts.

May 2, 2020 Macs, Technology

File Integrity 9 : How error-correcting codes work

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.

April 28, 2020 Macs, Technology

Beyond Time Machine: 4 Offsite backups

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.

March 13, 2020 Macs, Technology

Last Week on My Mac: SSD it

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?

February 9, 2020 Macs, Technology

Last Week on My Mac: The arithmetic of backing up

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.

December 8, 2019 Macs, Technology

Caring for SSDs: TRIM, wear levelling and APFS

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.

August 26, 2019 Macs, Technology

When you’ve got more USB-C devices than ports

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.

August 23, 2019 Macs, Technology

Last Week on My Mac: Migration is like blisters

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.

November 25, 2018 Macs, Technology

Is APFS fully supported yet?

Does APFS currently support hard disks, Fusion Drives, and other forms of storage beyond SSDs? The devil is in the detail.

February 17, 2018 Macs, Technology

Which Hard Disk? Selecting modern hard drives

Buying or replacing external storage for Macs is extremely uncertain at the moment because of issues over APFS. Here’s some guidance for selecting hard disks, for backups and more.

February 16, 2018 Macs, Technology

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