With Dataspaces, the SFS end-user can directly read the CMS file data, without APPC communication to the SFS server. Only at ACCESS time, the end-user of a "dataspaced" DIRC must talk to the SFS server.
2011/3/17 Gentry, Stephen <stephen.gen...@lafayettelife.com> > Wasn't the original poster trying to do this with virtual disk(s)? And > if that's the case it has a high potential of being in memory anyway? > Or did I miss something. > Steve > > -----Original Message----- > From: The IBM z/VM Operating System [mailto:IBMVM@LISTSERV.UARK.EDU] On > Behalf Of David Boyes > Sent: Thursday, March 17, 2011 2:51 PM > To: IBMVM@LISTSERV.UARK.EDU > Subject: Re: Temp SFS environment > > > All that brings a subsidiary question : is it important to preserve > the machine xc > > in the VMSERVx directories (I should read the doc I think...) ? > > You need the XC mode setting if you want SFS to use VM dataspaces to map > parts of the data into memory (which would be consistent with the errors > you saw) for performance reasons. It works fine without it (as you've > seen), but performance will be impaired with very heavily loaded SFS > servers. > -- Kris Buelens, IBM Belgium, VM customer support
