Hello,We are planning on migrating our 25-odd Domino servers (R7) away from Windows O/S onto SUSE (SLES) 64-bit Linux platform running Domino R8.5 and consolidating the servers onto 6 hi-availability SLES servers.
We would be very much interested in contacting anyone who have or are:
- Migrated/Migrating a similar number of Domino servers from Domino 7 to Domino 8.x for x-series Linux, and from Windows to a 64-bit Linux O/S at the same time. The Domino 8 servers will be running in multiple virtualised environment (ideally XEN, but OK if VMWare) on the Linux host servers.
and another, or the same site:
- Migrated/Migrating a similar number of Domino servers from Domino 7 to Domino 8 x-series Linux, and from Windows to a 64-bit Linux O/S at the same time. The Domino 8 servers are configured as multiple Domino partitions (DPARS) on the Linux host servers.
Obviously it is unlikely anyone would have identical an experiance but anything close will help at this point.
We are interested to learn what was your experience was, what pitfalls etc…
We are also soon to be purchasing some test servers so are equally intrested in joining in discussion with others who may be at this stage.
I have contacted our IBM account manager who was unable to refer any sites, which I find a bit strange.
THANKS
Steve
Subject: We have done this
We implemented a customer Domino 7 environment with 32k+ mailboxes\users on Domino for SLES 10SP1 Linux running in 6 physical Intel boxes (HP DL380) fully redundant over 2 locations. Their previous environment was iSeries and Domino 6.5.5. Currently the infrastructure is on Domino 8.0.2 and moving to 8.5.
We are proud to have this environment working very well and if you like, we can share some migration information and performance figures we created over time if you like.
Some figures below:
Set-up
Machines
Limits
o a maximum of 2 dual-core processors and 16GB memory for a server
o a maximum of 40.000 users in total
User count
It is assumed that we can handle 8.000 users per cluster, this means 4.000 primary users per partition and 8.000 total mail files per partition. A Primary user is a user who’s Home server is located on the same server as where you are referencing to. The secondary user mail files are on a separate file-system to
keep the file-system limit below 500 GB
For the design architecture the customer counts a concurrency of 20%, this means;
o 800 concurrent Web Access users in normal operations per DPAR
o 1600 concurrent Web Access users in failover mode per DPAR
Spreading the fail-over of one machine to two other machines would result in a maximum of 2400 concurrent users in case of complete server downtime plus the load of the functional Domino server. This is done by only having 2 user loaded DPARs and 1 additional (Admin/LDAP/SMTP/DEV) DPAR on one physical machine.
Please contact me or Edwin Kanis if you need information or assitance : http://www.imtech.nl/eniacessentials .
Subject: Thanks guys
Marzel/Kanis,Thanks, that’s great. We have experienced a delay in getting a test environment bought in, but are ready to go as soon as that’s available.
I hope it is OK to get in touch in the near future.
Steve