Kindly i have a question, How many users that can join a session in collaborate original experience or ultra??
Regarding Collaborate Classic (a.k.a. Original Experience f.n.a ElluminateLive) gear, my personal high score is 887 users peak in the main session of a global "follow the sun" conference, happened some years ago with v10 gear.
Collaborate Classic is officially specified as "max.1.000 users", but with restricted toolset and "Blackboard participation" only. The practical watermark for adhoc stability with full toolset is 400 users. If you exspect there might be more coming, you should prepare your session in advance (>72 h before session start). For perfect stability and user experience of such large events, I strongly recommend
Regarding Collaborate Ultra,
I'm currently not aware of large event scores nor user success reports(I may have missed such Blackboard infos on this community site, any hint welcome)
Here are my 2ct, why Collaborate Ultra's new max.250 users limit sounds awesome compared to Classic's 1000 users limit,
Bottom lined, it will take much more server ressources to handle 250 participants in an Ultra session than 1000 participants in a Classic session.Blackboard has made a great job, if this 250 user capability does show stable under any circumstances in each datacenter.
My current "Large Ultra Event" recommendation
As long as we do not have large Ultra event success reports, it might be a good idea anyway to open a support case for any Ultra session exspected to exceed a 100 user watermark. From my consultant's perspective, datacenter OPs should become aware of challenging >100 Collaborate Ultra sessions. Official Blackboard comments on this point are welcome. In addition, I welcome any user reports on large events held.
MeroGerman Collaborate User Group
Collaborate Ultra currently has a limit of 100 concurrent users. Classic I believe supports 250, but I'm not entirely sure.
EDIT: Per Marissa Dimino, Collaborate Ultra can now support up to 250 users.
Thanks a lot Cliff, it was helpful
Thanks for the question Hossam Hus Elrefaey! With the latest release of Collaborate Ultra, a session can accommodate up to 250 users.
Many thanks for the info Marissa Dimino.
Thank you very much Mero it was very helpful
Just to mention:By Oct 3rd 2018, Blackboard support has published a new common user doc on Large Event Requests for both Classic and Ultra Experience. Please ignore the dec2016 link I posted above, as the new suggestions are more detailed. Regarding large Ultra sessions in particular, the new docs showing more restrictions than before, probably driven from datacenter OP's Ultra experience during the last 2 years.
Collaborate Ultra Large Events
These are major limitations beyond the maximum number of participants and toolset available, which should be anticipated, if you plan a large online conference running the whole day.
Furthermore, it might happen, that your link to the session will be changed by Blackboard datacenter OPs.
Please do not provide links to attendees until the Ultra Large Event has been confirmed by support.
This implies, that support is not able to forward a given Ultra session link to a dedicated server equipped for such large loads. Is this potential change caused by the need to change access from your datacenter to another one?
I have never seen such requirement for large Classic sessions in the past.
Ultra vs. Classic
Ultra's 4 hours limit seems to be more than enough to process a series of 4-5 talks, but the 30 min break condition turns the schedule of whole-day conferences on the Ultra platform more complicated than "Classic" conferences.
There is an additional challenge raising from the disability to host several large capacity halls in parallel.: Online conferences have a common request "One recording file for each talk".
It was always messy to have several talks in one session,as you will never get the hall empty during breaks. Recordings took long to be generated, appeared as large files, which must be split into pieces by manual video cutter work. By chance you managed to provide the recordings to participants the day after.
The "Classic" solution for this issue is to have two halls running parallel and swap the total audience after each talk from one hall to the other. One hall is filled with people, while the other hall gets empty (sleeping participants kicked out by moderator). In the empty hall, the recording of the previous talk takes place first. The next speaker might come in early, prepare his/her talk in a relaxed mood. But from the large audience perspective, they can swap in after the end of the talk within a 5 minutes break.
This practical approach to "One recording per talk - generated just in time" is impossible due to Ultra's restriction "Single hall only".
We have to find new best practises for large Ultra conferences
Combining these organisational limitations of Ultra with it's current limitations in functionality, I'm wondering, which of my best practises from large conferences on Collaborate Classic mightt be migrated to Ultra conferences (in Ultra|s current state of development). Let me share Collaborate admin's insights:
Best practises for Collaborate Classic Large Events Prep
On your Enterprise login group, define a "Drop-In" session, not the "Meeting" type. You will gain the ability to
Enable "Allow In-Session invitations". This makes life easier for helpers not knowing your SAS admin password. They get the session's guest link from the client, if someone calls and asks for. Ultra has currently no In-session invitation.
The next hint applies to both Classic and Ultra:
Extend the pre-session (boundary) time to more than the 15 min suggested in the support article. 30 min minimum, as there is much to do, which should be finished at official session begin.
On the Classic platform, I may split this extended 30 min prep time into 2 phases.
The speaker's room remaina during the whole Classic session, enabling all helpers to make "backstage" conversations, testing slides and audio of new speakers coming in etc.
By the way: I strongly suggest to provide speakers in large conferences with the ability to use a telephone as plan B, if the VoIP audio is performing insufficient. One of the most fatal traps you may step into is having a large audience in the hall with a speaker on stage, who produces really bad audio experience. I'm therefore interested in how to provide such capability in an Ultra room for presenters only, but not for the hundreds of participants in the hall. Ideas? No problem with Classic's 3rd party telephony.
Hope this helps
And good luck with your next large session
Thank you very much Meinrad for the very helpful update
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