Re: [Xen-devel] NetApp vfiler example scripts

[Stefan de Konink <skinkie@xxxxxxxxx>]

On Tue, 20 May 2008, Mark Johnson wrote:

> On Mon, May 19, 2008 at 4:27 PM, Stefan de Konink <skinkie@xxxxxxxxx> wrote:
> > Mark Williamson schreef:
> > Mark Johnson schreef:
> >> I've been playing with adding extensions to phy: to handle dynamic
> >> block devices. For iscsi, it's something like.
> >>    phy:iscsi:[static]/<targetid>/<lun>/[serverIpAddr]
> >>
> >> e.g.
> >>   disk = ['phy:/dev/zvol/dsk/tank/guests/snv89,0,w',
> >>
> >> 'phy:iscsi:static/iqn.1986-03.com.sun:02:17f34578-00a9-ef69-f3e9-b8a2896a4915/0/192.168.0.70,1,w']
> >>
> >> when the block hotplug script see's the phy:<ext>: it
> >> looks for something like a block-<ext> script and runs
> >> it if it can find it, else, defaults down normal path.
> >
> > Isn't that what normally happens? Just type blabla: and it will go to
> > block-blabla?
>
> Not for Solaris.

I guess the main problem is that the scripts are targeted for Linux with
sysfs.

> >> The iscsi hotplug script verifies/sets up the disk, then adds
> >> a params-dynamic (equivalent to Stefan's node?) entry in
> >> xenstore.  A small change to the disk backend looks for a
> >> dynamic entry first, then defaults back to param if it can't find it.
> >
> > I have based all my code on the shoulders of giants, the final code was one
> > big mash up.
>
> I assume you aren't using pygrub to boot off of a iscsi disk?

Exactly. I never understood the need for pygrub in the first place.


Stefan


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