In the last episode (Dec 12), Jonathan Wright said:
> up" if there is a delay in the host computer's data access. However,
> I am getting inconsistent information on the variable blocksize
> setting in mt and don't know if I should use it or not. One site I
> found said that variable blocksizes allow the drive to write blocks
> at a size that it thinks will be best for the data speed at hand,
> while another site said that it allows the drive to use the blocksize
> being sent to it from the backup application (making 10,240 byte
> blocks in the above tar example). Who is right, or have I got this
> all mess up? :)
variable blocksize means write data to tape using whatever size chunks
the user write()s. I think only ancient QIC tapes actually need you to
set a fixed blocksize via mt.
> Also is there a preferred blocksize for DDS-3 DAT drives?
I use 64k for everything.
--
Dan Nelson
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