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12-24-2019, 12:41 PM #1Junior Guru Wannabe
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Migrating many large cPanel accounts from old server to new server.
Hi all
I currently have a shared hosting server with +-600 cPanel accounts and +-600Gb of data, which I am trying to migrate to a new server.
I have tried using the Transfer Tool. The accounts transfer across quite quickly, but the restore takes aaaages. It seems to restore at a speed of about 1MB per second. It would likely take several days for the entire migration to complete, after which time I would be able to change the nameservers to point to the new server and my clients would have lost a bunch of emails in the process.
Can anyone recommend a reliable and efficient process to transfer this many accounts across to the new server, without all of my clients losing many emails due to a slow migration?
Thanks very much!
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12-24-2019, 01:33 PM #2WHT Addict
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- Apr 2017
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Let me tell how I do:
- Server have incremental backup (no compressed);
- 2 or 3 days before migration, I run rsync from old server to new server, sync backup to new server;
- Everyday I run the sync again, to sync new files from backup
- Migration day, all backup is synced on new server - just restore all accounts
- If your /home/ directory on new server is HDD, this will take a lot of time
- If your /backup/ directory is a HDD, this will take more time
Half time wasted to restore accounts is because cpanel copy the backup, to a stage directory, before restore... if you have 600Gb of data, cpanel will copy these 600Gb of data to a stage directory, account-by-account, before restore to final place. This is done even if your backup is not compressed.
But if your backup is compressed, this will take much more time to transfer and restore.
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12-24-2019, 02:02 PM #3Junior Guru Wannabe
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- Nov 2012
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Thank you for the response!
Just to be clear, you're keeping incremental backups of all the cPanel accounts on the same server?
Unfortunately my server is +-900Gb and the accounts are 600Gb, so don't have sufficient space to store backups.
The new server is the same size.
When you say HDD, I assume you mean SATA? Both the new and old servers are Raid-1 SSD.
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12-24-2019, 03:30 PM #4Junior Guru Wannabe
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Anyone tried using JetBackup for migrations?
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12-24-2019, 08:51 PM #5Web Hosting Master
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We utilize Jetbackup but have yet to use migration tool. You'd be better off reaching out to them directly and asking your question their support is fairly responsive.
Do keep in mind it's the holiday season so expect some delays.
In regards to your migration, if the IP's are changing you can transfer a few accounts at a time to the new server.█ TrentaHost INC. || Fully Managed DDoS Protected Services Globally (NA - EU - Asia)
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12-25-2019, 01:32 AM #6Junior Guru Wannabe
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12-25-2019, 02:18 AM #7Web Hosting Master
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some tips discussed at https://www.webhostingtalk.com/showthread.php?t=1787376 as well
Last edited by eva2000; 12-25-2019 at 02:22 AM.
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12-25-2019, 09:58 AM #8Hello World
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12-30-2019, 07:27 AM #9Junior Guru Wannabe
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12-30-2019, 07:52 AM #10The Linux Specialist
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You can check: https://www.digitalocean.com/communi...ories-on-a-vps
Specially 4 U
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12-30-2019, 11:40 AM #11Premium Member
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If your clients are using your nameservers, you can consider using Express Transfer to perform the migration which would automatically direct traffic to the new server. So when the first 10 accounts are transferred, they would automatically be pointed to the new server, while the remaining 590 accounts will still be pointed to your original server. And this gradually shifts until all accounts are migrated to the new server.
Alternatively, you may also want to look into why the transfer rate is so slow. Maybe a less-than-optimal network routing between your new and old server? Maybe there are a lot of cache files on your clients' accounts? If so you can consider deleting those cache files to speed up the migration process.
I think a combination of the above would help migrate the accounts across in a less disruptive manner to your clients.█ HostWithLove.com - World Class Hosting Personalized - 9 Locations Across 4 Continents
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