Which HP 3PAR InForm Operating System feature provides Tier 1 resiliency and allows for nondisruptive online software upgrades on HP 3PAR StoreServ Storage systems without replying on
multipathing software?

A.
HP 3PAR Autonomic Rebalance

B.
HP 3PAR Access Guard

C.
HP 3PAR Persistent Cache

D.
HP 3PAR Persistent Ports

Explanation:
http://h20195.www2.hp.com/V2/GetPDF.aspx%2F4AA3-2542ENW.pdf
HP 3PAR Persistent Ports
HP 3PAR Persistent Ports is another Tier 1 resiliency feature that provides non-disruptive online
software upgrades on HP 3PAR StoreServ Storage without relying on multipathing software to
initiate failover. This feature, available on all HP 3PAR StoreServ models, brings Tier 1 resiliency
across the 3PAR StoreServ product line, including midrange models, by helping to ensure that
host paths remain online throughout the software upgrade process. The use of standard NPIV
(N_Port ID Virtualization) technology enables a single host-facing 3PAR StoreServ port to assume
the identity of additional predesignated partner ports, thus enabling transparent switchover of host
path connections.