QuickSpecs

Fault Recovery -- HP
Fault Recovery -- HPFault Recovery -- HP
Fault Recovery -- HP
Continuous Access EVA
Continuous Access EVAContinuous Access EVA
Continuous Access EVA
for Disaster Tolerance
for Disaster Tolerancefor Disaster Tolerance
for Disaster Tolerance
Applications
ApplicationsApplications
Applications
HP Continuous Access EVA remote copy functionality is available for use with the EVA6400/8400arrays.
Continuous Access EVA is a controller-based application that performs real-time replication between HP
Enterprise Virtual Arrays. The solution is enhanced to perform remote replication, and deliver high data
availability and performance to users on Fibre Channel based campus, metro or continental Storage
Area Networks (SANs). For additional information about Continuous Access EVA visit:
http://h18006.www1.hp.com/storage/software.html
HP Disaster Tolerant Solution for mySAP Business Suite on EVA offers a business continuance solution for
SAP environments, where data integrity and value added functionality are high priorities. Best practices
for implementing remote mirroring of an SAP database as part of an overall data protection strategy with
SAP applications can be found at: http://h71028.www7.hp.com/erc/downloads/4aa1-5683enw.pdf
High Availability/ Fault
High Availability/ FaultHigh Availability/ Fault
High Availability/ Fault
Tolerance/
Tolerance/Tolerance/
Tolerance/
Hot pluggable support
Hot pluggable supportHot pluggable support
Hot pluggable support
All EVA are configured with dual HSV controllers that operate in a redundant mode. Each controller has
four redundant Fibre Channel (FC) host ports. Each EVA6400 and EVA8400 controller has four FC host
ports per controller. In the event of a path failure, the alternate paths to the controller can be utilized with
the use of multi-path software in the Operating System software or Secure Path software.
EVA6400/8400 device ports connect to the FC I/O module on each drive enclosure via a fibre channel
arbitrated loop. Up to nine enclosures can be connected in a redundant FC loop arrangement
The EVA6400, with four fibre channel device ports per HSV400 controller, supports 2 redundant fibre
channel loops. Each controller can connect to both ports on up to 216 drives.
The EVA8400, with 6 device ports per HSV450 controller, supports 3 redundant fibre channel loops (6
loops total). Each controller can connect to both ports on up to 324 drives.
The HSV controllers also have dual redundant hot plug power supplies and dual redundant hot plug
blowers. Each controller has hot plug cache batteries to maintain cache contents for up to 96 hours in
case of a total power failure.
The M6412-A FC drive enclosure has dual redundant hot plug FC I/O/Environmental Monitoring Unit
(EMU) modules that allow the controllers to distribute I/Os between the two modules and provides
redundant paths should either FC I/O module become unavailable and the EMU functionality allows you
to monitor and report the condition of the power supplies and fans. . The enclosure also has dual
redundant hot plug power supplies and dual hot plug blowers. The enclosure also has a hot plug
Environmental Monitoring Unit (EMU) The M6412-A drive enclosure provides point to point connectivity
within the enclosure.
The SSD, FC and FATA disk drives have dual FC ports which can be redundantly accessed by each
controller. The drives are hot plug. The EVA, as a virtualized array, always provides striping of the drives
across the entire disk group. The drives can then be arranged, using redundant Vraid 1, Vraid 5 or Vraid
6 protection, so that a drive failure will not cause loss of data. Note that SSDs support Vraid 1 and Vraid
5. Optional distributed sparing (virtual sparing) can be configured so that a drive failure will trigger an
automatic rebuild of the Vraid 1 or Vraid 5 data set into spare space. The EVA sparing protection will
utilize available disk space in the disk group and when that is exhausted, the established virtual spare
space. This methodology of using unused capacity can give customers the ability to have many disk
worth of spare space for maximum data availability, protection and peace of mind.
All EVAs have dual redundant power distribution. Two independent power cords distribute power through
two Power Distribution Units (PDUs) to each side of the EVA cabinets and to each power supply of the
controllers and to each power supply of the drive enclosures. Each cabinet power cord can be connected
to independent power sources. For maximum availability, a customer should provide redundant power
QuickSpecs
HP 6400/8400 Enterprise Virtual Arrays
HP 6400/8400 Enterprise Virtual ArraysHP 6400/8400 Enterprise Virtual Arrays
HP 6400/8400 Enterprise Virtual Arrays
Product Highlights
DA - 13206 Worldwide — Version 17 — August 30, 2011 Page 18