Solved!
Go to SolutioniSCSI LUN replication Schedule
I heave read 300-004-188.pdf from EMC support.
it talks how to setup bandwidth for replication within the specific dates and hours.
I would like to configure only one of my iSCSI LUNs to replicate only
this hours. 12:30 PM to 1:30 PM and 6 PM to 8 AM every day
How do I set this up?
thanks in advance
it talks how to setup bandwidth for replication within the specific dates and hours.
I would like to configure only one of my iSCSI LUNs to replicate only
this hours. 12:30 PM to 1:30 PM and 6 PM to 8 AM every day
How do I set this up?
thanks in advance
gbarretoxx1
2 Intern
•
366 Posts
328
0
Posted February 26th, 2009 04:00
Hi,
the bandwidth throttling schedule is configured per "Data Mover Interconnect" basis, and you can have only one per DM pair.
So, all replication sessions using this interconnect will have the same throttling scheduling.
Regards,
Gustavo Barreto.Rainer_EMC
6 Operator
•
8645 Posts
328
0
Posted February 27th, 2009 09:00
for RepV2 its always minutes
only for Replicator V1 there were two watermarks for minutes and MB's - but that didnt support replicating ISCSI LUNs from the GUI or CLI
the way it works is that it notices how much data there is to transfer and what the transfer rate was for the last updates
so it starts the next update in time that it should be completed before the time_out_of_sync expires
so its basically the max. time your replica is "behind" your production LUNRainer_EMC
6 Operator
•
8645 Posts
328
0
Posted February 27th, 2009 09:00
there are some internal logs in /nas/logs but since RepV2 works mostly on the data mover you should be looking there using "server_log server_2"
Rainer_EMC
6 Operator
•
8645 Posts
328
0
Posted February 26th, 2009 07:00
The Replicator V2 idea is that its a continous replication - you only specify the RPO via max_out_of_sync param per session and the system automatically schedules the updates to happen so that they meet the RPO.
A couple of options I can think of to try:
- use Replication Manager to control the ISCSI replication - RM does the scheduling based on fixed times and schedules´and can acommodate that
- try stopping the replication session for that LUN at 8am and restarting it at 12:30pm through nas_replicate commands via the crontab
- try changing the max_out_of_sync value for that session to a high value via nas_replicate modify and crontab