On Mon, 12 Dec 2005 13:52:16 -0800 Schuh, Richard said: >The concept is the same. The same protections are needed is both cases.
The IOCP manual says that "the SHARED parameter is ignored for control units that attach to ... CNC channel paths". So, it seems that for ESCON, this parameter is ignored. It also says that for parallel channels you must specify SHARED=N. How does this apply to sharing between system. I don't seem to get it! > > -----Original Message----- >From: VM/ESA and z/VM Discussions [mailto:[EMAIL PROTECTED] = >On Behalf Of Aria Bamdad >Sent: Monday, December 12, 2005 1:14 PM >To: [email protected] >Subject: Re: Sharing DASD > >David, > >There are not too many examples in the IOCP guide where DASD is shared >between two physical CPU. Most are LPARs. > >The SHARED=3DY option is for parallel channels and as far as I know >does not apply to 'sharing' the control unit in this sense. > >Thanks. > > >On Mon, 12 Dec 2005 15:59:56 -0500 David Boyes said: >> >>The I/O Definition manual has some examples and/or the IOCP guide for = >=3D >>your processor will show you how to define them. The SHARED=3D3DY parm = >is =3D >>*very* important..8-) >> >> >>I need to share a DASD controller between two CPUs for a short period >>of time. I don't need to share the same devices on the two CPUs just >>access some devices on one CPU and other devices on the second CPU. >>
