You could use VM's TSAF component and virtual CTC's to connect to and
share the SFS server; The server can be on the host or the guests;
 setup is trivially simple (once you decipher the appropriate parts of
the Connectivity manual); the CTC connections don't use  VTAM, TCPIP,
ISLINK, AVSVM.
 Don't know if it'll "speedup the SFS connections" but it wouldn't
contend with TCPIP or VTAM traffic.


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-----Original Message-----

From: VM/ESA and z/VM Discussions [mailto:[EMAIL PROTECTED] On
Behalf Of Berry van Sleeuwen
Sent: Tuesday, November 01, 2005 5:48 PM
To: [email protected]
Subject: How to export SFS resources from host to guest

Hello list,

At this moment we have 4 LPARs (VM1 to VM4) that share a SFS on VM4. The
resource is shared with AVSVM. We can't use ISLINK here. Also we have a
few
guest VM's in VM3 for our own 'pleasure'. These use an ISLINK to connect
to
VM4. For more on this, see "Hiding global resources within an ISFC
complex"
from June 2001. The post refers to these systems as Gerard has setup the
current config.

We are planning to move the 4 LPARs to one LPAR with the 4 LPARs as
guest in
the host. If possible we would like to take advantage of this new
config.
One of the options would be to move the SFS to the host and let the
guests
access the SFS running in the host instead of accessing SFS in VM4
through
AVSVM. The network connections are still a matter of concern, both TCPIP
and
VTAM. TCPIP will have to be setup on the host also. VTAM could just be
left
on VM4 but maybe it would be nice to get it to the host also.

What connections would be possible when we move SFS to the host?
Basically
anything that could speedup the SFS connections would be an option.

ISLINK can connect using a CTC (either real or VCTC) but can I use this
from
host to guest? If so, how do I 'connect' the ISLINK in the host? And
also,
when we use ISLINK all databases in the guests are available in the host
but
would such resources also be available in an other guest also? I.e. the
production database is available in the test VM because it is a (remote)
resource in the host that is exported to all other ISFC complexes.

We could use AVSVM but then we need to setup VTAM in the host as well.
When
I use AVSVM I guess it would not make the connection any faster so then
maybe we'll be better off to leave the configuration as it is. Unless we
move VTAM to the host anyway, then we could point the connection to the
host
instead of to an other guest.

Would IPGATE be an option? I did try to get it running on some other
systems. I could see a resource in the remote VM but I was not
successfull
in accessing it. If someone would have an example config for this I'd be
very happy.

Any other ideas I did not consider yet?

Thanks, Berry.

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