Bob,
I have been exposed to two different "channel extenders" over the
years. Of the two each had its own weaknesses. I won't talk about
brand names other than to say they were from different parts of the US.
The first (and second) seemed to drive IOS nuts and they were guilty
of various errors which at least a few times brought the system down
(these were attached to either a 4341 or a 168 (& 3033)). I had IBM
ask me to strip out their logrec errors of the report as the number
of errors at times amounted to several hundred a day.
Yes the damn things worked (sort of kind of) but the error recovery
took its toll on MVS. The devices they had at the other end had
response time issues which were hard to pin down as to where the
issue was. The error recovery was part of issue of course but other
items just kept on cropping up and (at times) it was a part time
sysprog to baby sit the various issues.
In both cases when we got rid of the "devices" our issues
disappeared. we replaced the box(s) with a 3745 and our reports made
it to the end users in 30 minutes or less sometimes hours. Yes the
3745 complicated life but we got everything to work in an extremely
less intensive person/hour cost and the time that was sysprog took
was at best minimal. It did cost human time but it was at a lower pay
scale and he could actually help out operations doing thier job.
Just to clarify the 3745 did not support tape it was used what it was
designed for.
Ed
Dec 29, 2006, at 12:32 PM, Bob Shannon wrote:
CNT channel extender? Or do a Google search on "channel
extender"
I've used CNT at two companies. They're expensive but do
the job. At the first company the remote drives were about
1200 miles away.
Bob Shannon
Rocket Software
----------------------------------------------------------------------
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
----------------------------------------------------------------------
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
