| Title: | DECmcc user notes file. Does not replace IPMT. |
| Notice: | Use IPMT for problems. Newsletter location in note 6187 |
| Moderator: | TAEC::BEROUD |
| Created: | Mon Aug 21 1989 |
| Last Modified: | Wed Jun 04 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6497 |
| Total number of notes: | 27359 |
We are rolling out MCC in stages for a 1400+ location network. Initially I need to establish two MCC stations, a primary and a backup. Eventually there will be multiple primaries and multiple backups. 1) What is a reliable, simple way to keep the databases (MIRs) in synch. They should be updated at leat every 15 minute, real-time synchronization would be nicer but is not necessary at this time. The systems are MCC 1.3 under ULTRIX 4.3, and they are separated by a T1 routed WAN link. thanks ... scott
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 4717.1 | TOOK::SWIST | Jim Swist LKG2-2/T2 DTN 226-7102 | Fri Mar 19 1993 08:41 | 15 | |
You could use DNS for the registration database, but that won't help
with the other MIRs.
You could copy the files periodically to the other system using rcp or
ftp (rcp is easier from a script). This requires that MCC *not* be
running on the standby system, so there may be an issue of startup
time when you fail over to the backup.
Get the MIR files on an NFS server (you will have to fiddle with some
environmental variables that specify the directories for various MIR
files). On a 10MB LAN, we don't see any performance degradation from
doing this (and our LANs are pretty busy here). A T1 WAN is 1.5 MBits
or so, right? That's about 8 times slower - I have no idea whether
or not you would see a significance performance hit.
| |||||
| 4717.2 | a few questions | MDCRAB::STUART | Scott Stuart - MARVA Network Sales Support DTN 341-3132 - MARVA District | Wed Mar 24 1993 14:10 | 11 |
How much of this has been tried? >Get the MIR files on an NFS server Does this mean that I can run 4 or 5 MCCs from the same MIR which is NFS mounted? This will work well for one LAN? I will try some backups (ftps) for other sites, but even sharing in one data center will help. thanks ...scott | |||||