Hi Steve,
You are right, those are the claims regarding all devices that get
supported in the kernel.
SUN support/engineering have decided for you what are the optimal
features for you.
However, once you start facing strange errors with your tape drives you
start asking yourself if the right options have bee specified...
What I am looking for is a way to figure out what are the "SUN default"
options for lets say HP LTO2.
Once I will be able to know what those are I can compare the defaults to
the possible values as per the "st" driver man documentation.
The only other option would be just to ignore the "SUN defaults" and
always specify your own with the aid of the st.conf file.
Unfortunately I could not get hold of anyone within SUN support to
provide me this information.
I wander if there is any back door to figure out the kernel default
values, the same as you could do a "strings /kernel/drv/st | grep LTO"
to figure out what LTO tapes are supported.
Itzik
> -----Original Message-----
> From: steve rader [mailto:rader AT ginseng.hep.wisc DOT edu]
> Sent: Thursday, February 12, 2004 17:54
> To: Itzik Meirson
> Cc: rader AT ginseng.hep.wisc DOT edu
> Subject: Re: [Networker] Solaris default kernel options (flags) for
st.conf
>
>
> > ---- Original Message ----
> > From: Itzik Meirson
> > Fact: Solaris 8/9.
> > Fact: Support in the kernel (st driver) for LTO2 and SDLT drives.
> > Is there a procedure to find what are the default values for the
> > "options" field in the kernel?
> > Is the default "options" value based on the device type or does it
a
> > generic value for any/all tape drives?
>
> This stuff is in /kernel/drv/st.conf. The latest patch
> cluster should provide ideal options... at least that's
> what the quantum web sites with regards to DLT.
>
> steve
> - - -
>
> > Just to keep this complete I mean the "options" field as defined in
the
> > "st" man page:
> > tape-config-list = <triplet> [, <triplet> *];
> > where
> >
> > <triplet> := <vid+pid>, <pretty print>, <data-property-name>
> > and
> >
> > <data-property-name> = <version>, <type>, <bsize>,
> > <options>, <number of densities>,
> > <density> [, <density>*], <default-density>;
> > or
> >
> > <data-property-name> = <version 2>, <type>, <bsize>,
> > <options>, <number of densities>,
> > <density> [, <density>*], <default-density>,
> > <non-motion time-out>, <I/O time-out>,
> > <rewind time-out>, <space time-out>,
> > <load time-out>, <unload time-out>,
> > <erase time-out>;
> > with a possible st.conf entry example as:
> > LTO-data =1,0x3b,0,0x2D639,4,0x00,0x00,0x00,0x42,3;
> > Thanks,
> > Itzik
> >
> >
> >
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