>I have been reviewing the STP documentation and I am not able to find
much
>information on the External Timer Source (ETS). It is documented in the
>STP Planning Guide, but there are few details.
>I am planning to install a small Z9 BC next month and I would like to
have
>an ETS for the mainframe. I do not need a Sysplex Timer or the STP
>functions. It looks like the STP is a billable feature on the Z9, so
that
>is even more incentive to avoid a STP.
>It looks like NTP and GPS time sources are a Statement of Direction for
>STP, but what about a simple modem? I do not want to install STP for
>thousands of dollars, if I can get the same function (ETS) with a $20
>modem. Also, I already have NTP and GPS timer sources for my network,
>Windows servers and workstations, I prefer to use that ETS functionality
>without spending thousands of dollars for an STP that I do not need in a
>one CEC sysplex.
>Does anybody have more information on the External Timer Source for the
Z9?
>Thanks,
Hi Mark,
I have discussed your questions with IBM development.
The term ETS for the 9037 to describe both:
- dial out to time services via an external modem
- attach to a time code receiver like radio receivers, GPS receivers etc
via a
RS-232 connection from the ETS device to the 9037
STP supports dial out and attach to a time code receiver is planned.
To have an ETS for the mainframe you need STP functionality to gradually
steer the time.You can dial out to a modem but you still need STP.
--
Regards, George Kozakos ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
