Dimebag and Mark, thank you for your comments   The issue was with network and user specific, not from storage side.
Hi,    I am running on OneFS 7.0.2.4, Win7 users connected to Isilon facing drive mappings lost issue intermittently and also when the win machine is locked and then unlocked. A reboot is required to get the drive mappings back. Also for the same users, unresolved SID are noticed but they will be refreshed in few seconds. Can someone point me in right direction to resolve this issue [IMAGE]  Thanks,  Damal
Isilon - drive mapping issues - unresolved SIDs