what is the maximum number of tape drives allowed with SLES

SUSE Linux Enterprise Extensions SLES Hardware
1

Can anyone tell me what is the maximum number of tape drives allowed is with SLES 10 and 11? I know with RedHat 4,5 and 6 the LINUX kernel limit is 128 tape devices. Is this true with SLES? I have heard it might be higher, such as 256. Any help would be appreciated.

Thanks

2

This is probably handled by the kernel’s SCSI Tape (st) driver as
mentioned here:

http://www.kernel.org/doc/Documentation/scsi/st.txt

And so maybe this helps:

MINOR NUMBERS

The tape driver currently supports 128 drives by default. This number
can be increased by editing st.h and recompiling the driver if
necessary. The upper limit is 2^17 drives if 4 modes for each drive
are used.

Good luck.