Hi There,
We would like to remove the mailbox database copy from our exchange server as we are lack of the space on our fixed vhd and we hope to be able to free about 100GB from the passive database copies as we have deployed DAG. is there any guidelines or procedures to safely remove the database copies? currently, we have 4 mailbox servers, HQMB01, HQMB02, SSMB01, and SSMB02. HQMB01 and HQMB02 is already part of DAG members by itself. however, on ssmb01 and ssmb02, we also add in HQMB01 and HQMB02 as the DAG member, thus they can fail over to HQMB01 or HQMB02 if their server have issue. in this situation, SSMB01 and SSMB02 passive copies is also inside our HQMB01 and HQMB02. As the our HQMB01 and HQMB02 is lack of the disk space and we would like to remove SSMB01 and SSMB02 from the DAG, thus we could remove the passive database copies. The following is the picture of the activation preference for all servers. what is the procedures and the guidelines to remove mailbox database copy and also remove the server from the DAG members? we are quite confuse and worry that after we are removing wrongly and cause the active database to lost as we understand that there is replication happening between them. as we have 4 mailbox servers from which server we should perform the task? Wish to get some advises from the exchange guru from this forum. we are on exchange server 2010 sp1 and windows server 2008 R2.Thanks so much.
Name : HQDB01
Servers : {HQMB01, HQMB02}
ActivationPreference : {[HQMB01, 1], [HQMB02, 2]}
ReplayLagTimes : {[HQMB01, 00:00:00], [HQMB02, 00:00:00]}
TruncationLagTimes : {[HQMB01, 00:00:00], [HQMB02, 00:00:00]}
Name : HQDB02
Servers : {HQMB02, HQMB01}
ActivationPreference : {[HQMB02, 1], [HQMB01, 2]}
ReplayLagTimes : {[HQMB02, 00:00:00], [HQMB01, 00:00:00]}
TruncationLagTimes : {[HQMB02, 00:00:00], [HQMB01, 00:00:00]}
Name : SSDB01
Servers : {SSMB01, SSMB02, HQMB01, HQMB02}
ActivationPreference : {[SSMB01, 1], [SSMB02, 2], [HQMB01, 3], [HQMB02, 4]}
ReplayLagTimes : {[SSMB01, 00:00:00], [SSMB02, 00:00:00], [HQMB01, 00:00:00], [HQMB02, 00:00:00]}
TruncationLagTimes : {[SSMB01, 00:00:00], [SSMB02, 00:00:00], [HQMB01, 00:00:00], [HQMB02, 00:00:00]}
Name : SSDB02
Servers : {SSMB02, SSMB01, HQMB01, HQMB02}
ActivationPreference : {[SSMB02, 1], [SSMB01, 2], [HQMB01, 3], [HQMB02, 4]}
ReplayLagTimes : {[SSMB02, 00:00:00], [SSMB01, 00:00:00], [HQMB01, 00:00:00], [HQMB02, 00:00:00]}
TruncationLagTimes : {[SSMB02, 00:00:00], [SSMB01, 00:00:00], [HQMB01, 00:00:00], [HQMB02, 00:00:00]}