A story of a project: 3600 users to G Suite in 60 days! – Day 8: Changing MX records

Day summary

We have come to the point where we are completely ready to change the MX records for all the domains. The process involved a lot of manual work but we split up the domains and managed to do it in a short amount of time. When we finished we ended up with all domains pointed to G Suite.

Once we completed the MX records change, we moved then to fixing all SPF records. Started with the primary domain there was not a lot to do. We just added the Google part of the SPF record to the existing one and we were all set.

After changing the MX records we found out about some issues in group permissions and other issues about bad forwarding settings between G Suite and Office 365 and managed to fix them all.

We also took a quick look about the progress of the … Read the rest “A story of a project: 3600 users to G Suite in 60 days! – Day 8: Changing MX records”

A story of a project: 3600 users to G Suite in 60 days! – Day 7: Completing the coexistence setup

Day summary

After getting the migration going, we moved to the next objective which is to complete the setup of the coexistence scenario between G Suite and Office 365. All what’s left was to setup the MX records and activate the forwarding from G Suite to Office 365.

I started with preparing a table for all the customer’s domains and then put all the required MX records in that table for each domain. And to be honest.. That was the most annoying thing I ever did! Once I completed the table, we agreed to do a change for one domain to test the delivery.

Prior to changing the MX records as we agreed, I had to enable the domain wide forwarding rule which was created earlier on the Admin Console. Then we were able to change the MX records.

I made sure we get all the old MX records documented … Read the rest “A story of a project: 3600 users to G Suite in 60 days! – Day 7: Completing the coexistence setup”

An important item to check before starting data migration to Gmail

Intro

I was working recently on a project who required data migration from Office 365 to Gmail. Everything went well and we had no issues at all except for a single problem that occurred because of a sort of strange cause…

One of the users has a very large mailbox size, about 70 GB. He uses sub-folders heavily in his Outlook client. And he is not using any sort of rules! He sorts his email manually. When I saw the data migration completed, the IT contact who is working with me from the customer side reported a strange problem in this particular mailbox. He said the user complained about having some of his folders split into two…

Funny problem!

After some funny troubleshooting process, I found out the more funnier reason for this problem. The user because he create a folder for everything, has some folders include the character ‘/’. … Read the rest “An important item to check before starting data migration to Gmail”

A story of a project: 3600 users to G Suite in 60 days! – Day 6: Going even faster with the migration

Day summary

On the first day of the week, we were met by the head of IT department in the customer site.. Suddenly he made a request that is awesome and bad at the same time.. He wanted to deliver 1500 users to the help-desk by the end of the week… So this was awesome because it means that we can deliver users faster, but it was bad at the same time because it meant that we need to setup more VM instances to be used for the migration work and we need to order more licenses for each user, and they have multiple domains, so it meant we needed to order multiple licenses for each domain to cover the amount of users…

We received the list of the 1500 users and I sorted them out based on the domain… This was a great opportunity also to show the customer … Read the rest “A story of a project: 3600 users to G Suite in 60 days! – Day 6: Going even faster with the migration”

A story of a project: 3600 users to G Suite in 60 days! – Day 5: Going full speed on migration, Users change from domain to domain

Day summary

This day is also a weekend, but things went very smooth and quiet in this day compared to the previous…

All I had to do is to run all the other remaining VMs and get the migration going. I also used DMS (Data Migration Services) from G Suite Admin Console to migrate number of IT users (all of IT actually) as we agreed during the migration planning. All work was completed relatively quick… However there was a little change that affected number of users I did not expect!

The customer had about 26 domains or more, they use them all for receiving email, but not all of them are used to send… All the users that were started on CloudMigrator were on a single domain (that’s why I finished quick!), but turned out they will not use that single domain for sending email… They were distributed on multiple … Read the rest “A story of a project: 3600 users to G Suite in 60 days! – Day 5: Going full speed on migration, Users change from domain to domain”

A story of a project: 3600 users to G Suite in 60 days! – Day 4: Starting up migration, the NDRs mishap!

Day summary

This day is a weekend.. Although I put it clear to everyone around me that I never work in weekends.. this was no ordinary time to apply this rule, so we did work on this day!

The main tasks that we needed to accomplish this day was to prepare the migration computers (VMs on GCP), and sorting out the user groups to be migrated (based on domains)..

I started out the work by creating the virtual machines on Google Cloud Platform, and I installed CloudMigrator on each one, having already requested the licenses, I made sure they were available easily on each migration machine, as I was trying to make things simple and getting to anything related to the project easy from every machine.. because I was expecting a big mess to come later on when we start the migrations (and it did indeed come!).. I ended up … Read the rest “A story of a project: 3600 users to G Suite in 60 days! – Day 4: Starting up migration, the NDRs mishap!”