German data rescue company datenrettung has issued a warning for users of Apple’s closed router / network drive Time Capsule, reports 9 to 5 Mac.
The hard drives Apple uses in the Time Capsule models of two or three terabytes are from the Seagate Grenada brand, which turns out to have a design flaw that causes them to break down on average after less use than expected.
A component in the hard drive consists of two different materials and when it is heated and cooled down, the difference in the materials can cause it to break. As a result, the read / write head breaks, which in turn destroys the contents of the discs and becomes almost impossible to save.
Data recovery says that this particular error is behind almost all the broken Time Capsule hard drives they have seen.
Since Time Capsule and the other Airport base stations were closed several years ago, we also recommend users to look around for alternatives. For Time Machine, network backups have always been somewhat problematic with significantly more errors requiring the system to clear old backups and start over. Therefore, we recommend an external hard drive instead.
For those who want a central backup for several Macs, a NAS device plus a standalone program that just like Time Machine does incremental backups but works better over networks can be an alternative, such as the free program Duplicati or the paid program Arq Backup.