Hi,
In fact it is not an issue. Here a previous post about this subject : http://communities.vmware.com/thread/284372?start=0&tstart=0
Dynamic Discovery Also known as Send Targets discovery. Each time the initiator contacts a
specified iSCSI server, the initiator sends the Send Targets request to the server.
The server responds by supplying a list of available targets to the initiator. The
names and IP addresses of these targets appear on the Static Discovery tab. If
you remove a static target added by dynamic discovery, the target might be
returned to the list the next time a rescan happens, the HBA is reset, or the host
is rebooted.
Static Discovery The initiator does not have to perform any discovery. The initiator has a list of
targets it can contact and uses their IP addresses and target names to
communicate with them
And here more information about iscsi discovery : http://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vcli.examples.doc%2Fcli_manage_iscsi_storage.7.2.html
Regards,
Julien