Re: scsi driver transfer size and sync mode

[Tony Chung]

Kai Makisara wrote:

On Wed, 25 Aug 1999, Tony Chung wrote:

>
> 1.  Can Linux support single scsi transfer of  at least 1040384 bytes?

Yes. I have written tape blocks of at least 1.5 MB.
 
 

Can you give me some pointers on how this can be done?

From the source tree of 2.2.12, I will modify:

AIC7XXX_MAX_SG  to 254 in drivers/scsi/aic7xxx.c

And I will modify st:buffer_kbs to be 1016 (i.e. 254*4*1024 bytes)
and st:max_sg_segs to 254 also.

bash# /sbin/modinfo -p st
buffer_kbs int
write_threshold_kbs int
max_buffers int
max_sg_segs int

I believe you can set them through /etc/modules.conf.
Is there a way to find out the current parameters values?
Please correct me if this is not the right direction.
Thanks.
 

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Tony Chung