I would do as AranH suggest and change the password on that account.  If they have to do something again, it will force them to contact you and then you will know when someone is messing around inside your array.
Hi people,   I'm working with CX4-480 and ESXi 4.0 (VCenter, SRM...). Some LUNs named "virtual disks" appeared without any command issued by the storage administrators. I think there is something related with SRM. I coulnd find anything at logs... any "bind" command. These LUNs are all the same size (61,786 GB) and they are not assigned for any host. I read some papers from EMC but I was useless. Do you know about this?   Thanks.
Virtual Disks