Compaq 1/16 tape superloader 1280 doesn't compress

[vlaa]

Hello!

My company have a Compaq 1/16 tape superloader 1280.
How to enable compress from legato 6.1.3

+compressasm: * don't working.

How can I fix it?

 

[sdeb]

I dont't know what tape drive you are using but if you want to compress you have nothing to configure.

Most of the tape drives (to not say all of them) can compress natively and you do not have to set it (hardware compression).

What you said before was configuring a software compression with "compressasm", it is only usefull if you have a poor network connection (the problem is that you use CPU ressources on the machine backed up and that your hardware will not compress anymore, such as zipping to times a file !).

If you want to use software compression :

<< / >>
+compressasm: .

This directive works fine as well for UNIX and Windows (nothing to change).

Hope this helps.

 

[605]

However, i think you still might have problems. To my
knowledge tape drives will adjust to the density found on
the tape when the first command moving off BOT is a read.
This is what NW has to do when he tries to read the label.

Now, when he rewinds and writes the label, it may be that
NW will not change the density. Especially, i can image
that this is true for Windows devices which cannot be
addressed by certain densities or compression rates.

Watch the LEDs on the device. In this case you must manually
override the density.