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Re: Recommendation for filesystem for USB external drive for backups



On 20/08/2020 10:08, David Christensen wrote:
On 2020-08-13 01:31, David Christensen wrote:
Without knowing anything about your resources, needs, expectations, "consistent backup plan", etc., and given the choices ext2, ext3, or ext4 for an external USB drive presumably to store backup repositories, I would also pick ext4.
If you want to access the backup drive from foreign operating systems:

If interoperability is a consideration, FAT32 and NTFS should also be considered. FAT32 is widely used for removable flash media but has a 4GB file size limit, no journaling, and no support for permissions. NTFS is widely used for external hard drives and has journaling and support for attributes. If you buy a consumer-grade external hard drive, it will most likely be formatted with NTFS. Backup archives (such as tar archives) can be used to preserve Linux file metadata (permissions and timestamps) on foreign filesystems.

Kind regards,

--
Ben Caradoc-Davies <ben@transient.nz>
Director
Transient Software Limited <https://transient.nz/>
New Zealand


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