[SunHELP] remote ufsdump

Brian Hechinger sunhelp at sunhelp.org
Wed May 30 11:49:17 CDT 2001


> Regards,
>         How fast would be the remote dumping speed? does it depend on the
> tape drive it self or the connection between them?

usually the tape drive.  a DDS4 drive (the fastest 4mm that i know of) can only
backup at a data rate of 2.4Mbps (native, compression doesn't make the network
work harder, it just sends more data per bps) so not even close to a 10Base
connection, hell, a T1 wouldn't even slow you down that much.

the fastest tape i know of are the Mammoth and AIT 8mm drives. both can do 
roughly 60Mbps so 10Base would seriously limit you, but 100Base would be more 
than adequate.

and if you backup to some freaky beast that has a HDD pool, then you could
saturate your network, no matter what type it is.

so, in summary, for the most part, modern networking technology far exceeds
tape drive speeds.  for the time being, you never know what will happen in
the future, but of course there is always GigE to cover that. :)

cheers,

-brian



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