Good morning,   The change will be immediate.  However, space balancing will take some time to complete.  Depending on the amount of data, speed and load on the group.  Make sure you aren't going to exceed the single pool limit of 1024 connections.   Regards, 
Hi All,   Hope someone can help with this quick query. I have 3 storage pools, all RAID 10 SAS with mulitple volumes on each. If I were to merge the pools, is this an immediate action or does it copy all the volumes first? Just thinking of time frames really. I'm not expecting a time frame btw as you dont know my set up just if it takes time or its immediate.   Thanks   Dave 
EqualLogic Storage Pools - Merging