CS1000E Deployment - How Many CPDC Cards?

[vtechv]

The majority of the systems we deploy are stand-alone, meaning not networked to another call server/PBX. Now that 7.5 is upon us we are reviewing our options for deployment. We want High Availability/redundancy. We've been told we must deploy UCM, with its primary security server and deployment server on a stand-alone CPDC card. If we want UCM or the security server redundant we must add a second CPDC card. Then we need two more CPDC cards to run SS and Element Manager, and technically NRS if we need it, along with their alternates/followers/backups. In my lab I can build a primary security server along with deployment server on one CPDC card and then the backup on another. I can then deploy NRS-SS, EM applications to those same two CPDC cards. This would appear to provide all the redundancy I'm getting in the four card deployment, with fewer cards to buy and go bad. In the HS book it says that as systems get larger, over 100,000 sets I believe it says, you want to use a stand-alone security server. This seems to suggest it doesn't have to be stand-alone. My questions:

Do all of you installing/administering CS1000E Rls. 7.5 systems with CPDC cards have all your primary and backup security servers on their own cards without any other applications?

Have you been told you cannot deploy other applications on either CPDC security servers?

If no to either of the above, can someone confirm they have successfully deployed and have functioning CS1000E systems with only two CPDC cards running both security servers and other applications, NRS-SS, EM?

I'm not including a MAS server in my calculations of two CPDC cards.

Thank you for your time.


V

 

[monkey101]

I would suggest if you are going for an inskin card instead of a cot server i would use the cpdc because of the hard drive size.

Depending on the size of you system i would just use the 2 cpdc cards and sahre them with nrs, ucm and tps. I have found if you are going to add sip sets that i would use a seperate server for that as I have always had troubles once you go co-res for them.

I have a system working with the cpdc cards and aprox 400 phones and no issues. I do prefer cot servers but that is just me.

If you have any other quests just ask.

 

[vtechv]

We are currently deploying Rls. 7.5 HA systems based on two CPPM cores and four CPDC cards as described above, five CPDC cards if you add the MAS server which our implementation team has never got to work correctly - but that's not the issue here. We only have a couple of these sites installed, and I want to nail down a standard configuration before we get too many unnecessary cards deployed.

We use approximately 70/30 TDM/UNISTIM IP sets. 80% of our locations are <500 sets. About 90% of our installs are stand-alone. No need for tie trunks, virtual or otherwise, to any other system for MCDN purposes.

I was told by engineers working for our installation contractor, none of which have training or experience with UCM or 7.5, that someone from PLM said we must deploy stand-alone primary security servers and backup security servers (if we want redundancy). I found it odd that I can't find that statement or requirement anywhere in the documentation. It's also odd that the system lets you build applications on the primary and backup security servers.

Thank you monkey101 for sharing your experience.

 

[monkey101]

I have found that if you are using multi sites through NRS with lots of sets you would want to have standalone NRS. I have never installed a standalone UCM before....I always have tps and NRS running on my servers. The only real thing I would make sure is that you use the CPDC and not just go with a Co-Res as I had a site that the UCM drive filled up and stopped working.

The other thing to is if you see that youare getting issues you can always add another server....no one ever wants to let you take one back.

I personally would also stay away from the CPMGS 128 cards. I have had nothing but troubles with them and having you CS,SS and MGC card all in one. We have them deployed at a bunch of SMG sites and if you have any issues with them and had to replace or rebuild you are lookiing at aprox 3 hours with reloading Linux and everything. I personally don't even like to use Co-Res cards.

 

[KCFLHRC]

There is absolutely no reason that you cant deploy any applications on your Primary and back up Security Servers. I cant think of any reason why these would need to be stand alone servers. The only limitation I know of is you have to deploy Sub Mgr. on the Primary Security Server. The CPDC servers are the most robust in skin server there is. The COTS servers are very robust too if you want to go that route.

 

[KCFLHRC]

I have a CS1000 SG with P IV's running only 2 CPDC cards. One is the Primary Security Server and the other is the back up security server. I have SubM, NRS, SS and EM on the first one and NRS and SS on the 2nd one. No issues at all.

 

[vtechv]

This is great news, and what I've experienced in my lab environment. Thank you all for your comments.

V