Hitachi G1500 - Front-End Directors

Item Name Min Max Description
3 Service
pr
ocessor
(SVP)
or Hub
0
1 This space can be empty or can contain either a
second SVP or a hub. When a second SVP is installed,
the primary SVP is the active SVP
, and the secondary
SVP is the hot idle SVP with active Windo
ws. A hub
facilitates the transfer of information from the VSD
pairs to the primary SVP.
4 Back-end
director
or
(optional)
front-end
director
0 if
diskless
4 Connects the HDDs, SSDs, and FMDs. It controls the
data transfer between the drives and the cache.
VSP G1000, VSP G1500, and VSP F1500 support two
types of back-end directors:
■
Standard back-end director
■
Encrypting back-end director
1
Important: Each back-end director and front-end
director consists of a set of two of blades. See
Flexible
front-end director installation (on page 41) for
details.
2 with
drives
5 Front-end
dir
ector
(host I/O
module)
1
2 to 5 with
drives
A fr
ont-end dir
ector (FED) provide ports that support
connectivity to the open and mainframe systems
belonging to the customer. In addition, some of the
FEDs support virtualization of externally attached
storage, remote replication between VSP G1000, VSP
G1500, and VSP F1500 and other storage systems,
including communication between two Hitachi
storage systems in a global active device cluster. See
Front-end directors (on page 36) for details.
6 if diskless
system
6 Cooling
fan
(e
xhaust)
5
5 The e
xhaust fans on the r
ear of the controller pull hot
air away from the components and push it out the
back of the rack.
7 FED or
VSD slot
0 4 The slots on the controller support both front-end
directors and VSDs. Both FEDs and VSDs must be
installed in pairs.
Note:
1. Achieved FIPS 140-2 Level 1 certication.
Front-end directors
A front-end director (FED) is a pair of blades installed in the controller.
Front-end directors
Chapter 2: Storage system hardware overview
Hitachi Virtual Storage Platform G1000, G1500, and VSP F1500 Hardware Guide 36