The Linux ETR support only applies to Linux running in an LPAR. Getting this to work for Linuxrunning in virtual machines will require VM to accept and virtualize the new ETR signals.
____________________________________ Rick Barlow Sr. z/VM Systems Programmer Nationwide Services Co., Technology Solutions, z/VM and System z Linux Support One Nationwide Plaza MB-02-201 Columbus OH 43215-2220 U.S.A Voice: (614) 249-5213 Fax: (614) 249-3912 mailto:[EMAIL PROTECTED] The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> wrote on 05/21/2008 05:08:14 PM: > IBMVM@LISTSERV.UARK.EDU > > We've been running NTP for every with no ill effects. Our > authentication product requires it be there (to active directory so > presumably Kerberos is the reason). > > Now.. Funny this topic should come up. I was about to ask about this > which came out the SLES 10 SP2 Release notes: > > http://www.novell.com/documentation/sles10/pdfdoc/release-notes_sp2/rele > ase-notes_sp2.pdf > > > * zSeries: ETR (external time reference) Support: Enables Linux images > to synchronize with parallel > Sysplex or GDPS by providing z/OS compatible external timer reference > and maintaining data > consistency groups for XRC data mover. More info: The ETR support > introduces a new kernel parameter > "etr" that is used to set the initial state for the online attribute of > the two ports. The syntax of the parameter > is "etr=[on | off | port0 | port1]". The default is "off". The ETR > support introduces a number of sysfs > attributes. There are two time synchronization ports etr0 and etr1, > which can be accessed via sysfs under: > /sys/devices/system/etr > > > Is this for under z/VM as well ? (we are going to be doing XRC r.s.n.).
