| Re: Is Kerio capable to run over 350 users? [message #138062 is a reply to message #138055] |
Wed, 03 January 2018 22:43   |
matti763
Messages: 27
Registered: February 2006
|
|
|
|
I also recommended official method when OS changes. It is easy for you to evaluate whole process by restoring all data from backup to Linux server. You can measure how long the whole process takes and you also see if there is any issues. We hit issue restoring backup to another OS, because user has created folders with forbidden characters.
Ps. did you manage to resolve the performance issue?
|
|
|
|
| Re: Is Kerio capable to run over 350 users? [message #138071 is a reply to message #138055] |
Thu, 04 January 2018 19:06 |
Jorge
Messages: 20
Registered: December 2010
Location: United States
|
|
|
|
Bud Durland wrote on Wed, 03 January 2018 05:14Depending on your mail store size and tolerance for downtime, you might want to use the officially documented method. If not, it is basically a copy/paste, and editing the mailserver.cfg file for OS specific settings. In our Windows to linux move, I mounted the old (windows) mail store via NFS, and used rsync to make an initial copy to the new Linux server (it ran for almost 40 hours). Then I shutdown the windows server, did a 'catch up' copy, and brought up the Linux server. other than having to rebuild a few indexes, it worked well.
Thank you!
My storage size is 740gb hopefully it doesn't take that long, because I only got 20hrs maximum of downtime.
|
|
|
|
|
|
| Re: Is Kerio capable to run over 350 users? [message #138083 is a reply to message #138071] |
Fri, 05 January 2018 17:20 |
j.a.duke
Messages: 239
Registered: October 2006
|
|
|
|
Jorge wrote on Thu, 04 January 2018 13:06Bud Durland wrote on Wed, 03 January 2018 05:14Depending on your mail store size and tolerance for downtime, you might want to use the officially documented method. If not, it is basically a copy/paste, and editing the mailserver.cfg file for OS specific settings. In our Windows to linux move, I mounted the old (windows) mail store via NFS, and used rsync to make an initial copy to the new Linux server (it ran for almost 40 hours). Then I shutdown the windows server, did a 'catch up' copy, and brought up the Linux server. other than having to rebuild a few indexes, it worked well.
Thank you!
My storage size is 740gb hopefully it doesn't take that long, because I only got 20hrs maximum of downtime.
I think the rsync method will be your best bet-the built-in backup/restore will likely take too long.
With rsync, you run the first copy while everything is live (can be well before your cutover date), then shutdown the old server and your final copy should take a lot less time (a few hours, maybe).
I've not done the official method in my migrations and have not had any issues (not even the index rebuilds to which Bud refers).
Cheers,
Jon
|
|
|
|
| Re: Is Kerio capable to run over 350 users? [message #138103 is a reply to message #138083] |
Tue, 09 January 2018 01:46 |
Jorge
Messages: 20
Registered: December 2010
Location: United States
|
|
|
|
Such a bad news  I could not move the files over to the brand new linux redhat server the transfer rate was 1.5mbps I am sure there is something wrong with the LUN like someone here mention, but even my support contacts are not certain of what is the problem.
What I end up doing was attach the new raid10 LUN to the same windows server and start moving the files I hope by friday it will be done and i will attempt to do the migration internally just from the current bad LUN to the new RAID10 drive and then schedule another weekend to move over from that Brand new RAID10 to the linux server... I dont see any other way.
|
|
|
|
Members
Search
Help
Register
Login
Home
