Maximum Devices in QDOS/Minerva

[XorA]

Is there a maximum number of disk devices allowed for QDOS/Minerva.

I was sent some tests for uQLx/sQLux and it looks like after approx 16 disk devices are opened you run out of channels. Get a -6 error on any further.

[martyn_hill]

Hiya!

Yes, there is only space allocated in the Sysvars for links to the Definition Blocks for 16 directory-type device 'instances'.

I thought it might also be the same for SMQE, but have never checked...

I believe that the TK2 procedure DEL_DEFB releases all these as long as there are no open channels remaining, allowing you to start-over again...

[XorA]

Thanks for the answer.

uQLx's support for 16 * 8 directory devices is a tad optimistic then

[janbredenbeek]

Thanks for the answer.
uQLx's support for 16 * 8 directory devices is a tad optimistic then

For each directory device you can have up to 8 instances (e.g. win1_ to win8_) but the total number of instances is limited to 16.