Hi Guys,
Been bursting myself trying to locate the source of this problem...
Symtoms include:
Outlook fully service packed taking an age to start up. Takes longer for users with more than one mailbox mapped. Looking at outlook started with /rpcdiag reveals the first 'Directory' connection is very slow, almost always 21500ms +/- 500ms or so. the connections to the Mail are face a few ms generally. further directory connections are fine. This delay is exaggerated by the number of accounts mapped each account mapped adds a further 25 seconds to the launch of outlook. We also see timeouts on occasion. Outlook performance is good and snappy once its started.
The environment is Exchange 2013 with the latest CU (applied last month), 2 x CAS servers (One in operation as Load Balancers were removed as part of the trouble shooting process) 2 x MBX server in a DAG currently only about 40 or 50 users. All running in vSphere 5.2 Enterprise. Desktops are VDI using horizon view.
Any thoughts on this? Worth noting the majority of the basic trouble shooting has been done, new outlook profile, safe mode, open small mailboxes, I'm confident the LAN is performing well as is the vSphere environment, disk latency is very low and SAN is less than 10% usage of capable IOPS, cpu usage is low on all components.
Thanks in advance for any suggestions
Been bursting myself trying to locate the source of this problem...
Symtoms include:
Outlook fully service packed taking an age to start up. Takes longer for users with more than one mailbox mapped. Looking at outlook started with /rpcdiag reveals the first 'Directory' connection is very slow, almost always 21500ms +/- 500ms or so. the connections to the Mail are face a few ms generally. further directory connections are fine. This delay is exaggerated by the number of accounts mapped each account mapped adds a further 25 seconds to the launch of outlook. We also see timeouts on occasion. Outlook performance is good and snappy once its started.
The environment is Exchange 2013 with the latest CU (applied last month), 2 x CAS servers (One in operation as Load Balancers were removed as part of the trouble shooting process) 2 x MBX server in a DAG currently only about 40 or 50 users. All running in vSphere 5.2 Enterprise. Desktops are VDI using horizon view.
Any thoughts on this? Worth noting the majority of the basic trouble shooting has been done, new outlook profile, safe mode, open small mailboxes, I'm confident the LAN is performing well as is the vSphere environment, disk latency is very low and SAN is less than 10% usage of capable IOPS, cpu usage is low on all components.
Thanks in advance for any suggestions