[Info-vax] FTP FYI

[Arne Vajhøj]

On 11/23/2020 4:00 PM, Phillip Helbig (undress to reply) wrote:
> In article <rpgvdq$bgp$1 at dont-email.me>, Stephen Hoffman
> <seaohveh at hoffmanlabs.invalid> writes:
>> However...  Updates to BACKUP seem nonsensical longer term, as the
>> current app design is close enough to its performance limits to not
>> matter.
> 
> Is there any reason not to use ZIP?  It not only makes an archive, but
> it is much faster to extract individual files from it, it also does
> compression, and is very portable should one need to transfer files
> between different operating systems.  For a while now it can handle
> large files and/or large archives.
> 
> For really large savesets, is there something BACKUP can do but ZIP
> can't?  Is BACKUP faster than ZIP (assuming no compression)?

I would use ZIP for transferring some files and BACKUP for
doing backups.

:-)

I expect an image backup to do be perfect for backup and restore.

ZIP compresses and can be unpacked on non-VMS< which is pretty
convenient. And it works perfectly to transfer a directory tree
with something. But I fear that there may be corner cases
where attempting to use ZIP and UNZIP as backup and restore
will not produce the correct result. It was never
intended to be used for that purpose.

Arne