Subject: Re: tape drive instrumentation round 2
To: YAMAMOTO Takashi <>
From: Bill Studenmund <>
List: tech-kern
Date: 03/07/2006 10:27:30
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On Mon, Mar 06, 2006 at 09:51:59PM +0900, YAMAMOTO Takashi wrote:
> > > what exactly needs "drivenames", and does it care about nfs?
> >=20
> > Nothing needs drivenames right now but it may be useful to know what
> > drives are on the system, I am thinking of perhaps a tape drive that
> > was not attached/powered during boot but later gets powered up and the
> > scsi bus rescanned to attach it - it could be hard to tell if a tape
> > device is known about by the kernel without poking random device names
> > to see if something responds.  The nfs was there just for completeness.
> do you mean it's only for human investigation?
> i don't think of any usage for which inclusion of "nfs" is useful.

I can! Any tool which wants to know what io stat names are available.=20

I think a better thing to do is rename the variable to "iostatnames". Then=
it makes a lot of sense to include nfs in the list of all iostat-providing=

Take care,


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