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9380-8E Datasheet, PDF (1/2 Pages) AVAGO TECHNOLOGIES LIMITED – Shared DAS High Availability with MegaRAID Data Protection
Avago Syncro® 9380-8e Solution
Shared DAS High Availability with MegaRAID® Data Protection
Product Brief
Key Features
■■ Shared storage in a 12Gb/s DAS
infrastructure
■■ Cost-effective high availability
■■ 2x the throughput from the previous
generation
■■ Facilitates application failover for
2-node server clusters and large
virtualized environments utilizing
server cluster pairs
■■ Reduced latency on server failure
migration
■■ Simple, easy to manage uptime
solution
■■ Built on MegaRAID reliability and data
protection
Avago Syncro solutions deliver a simple, cost effective means to achieve continuous
application uptime and enterprise-level data protection. Built on MegaRAID technology,
the Syncro solution provides high-availability features, consistent with Storage Area
Networks (SANs), at a cost and support model consistent with Direct Attached Storage (DAS)
environments. Small and medium businesses (SMBs), remote offices and data centers can
utilize existing administrative infrastructure while ensuring that critical applications remain up
and running.
The Next Generation of High Availability Direct Attached Storage
The Avago Syncro 9380-8e uses the Serial Attached SCSI (SAS) interconnect to share storage
and communicate between server nodes. This enterprise-level storage medium allows each
Syncro controller to measure the opposing controller’s heartbeat while maintaining coherency
of WRITE-back cache.
The 12Gb/s Avago Syncro controllers deliver continuous application availability and shared
storage with twice the SAS throughput of the previous generation. Doubling the speed of the
SAS bus means more consistent heartbeat monitoring and reduced cache transfer occupancy
while moving twice the data from storage in the same amount of time.
Advanced Caching with Zero Data Loss
Avago maintains its commitment to data protection through Syncro caching for performance
acceleration. In the event of a power failure or server failure, unprotected WRITE-back cache
data can be lost from DRAM. Measures must be taken to ensure that data in DRAM is preserved
and maintained to avoid application/OS corruption or file loss.
Avago CacheVault® technology protects against power outages by directing WRITE-back cache
data to non-volatile flash at the instant power is lost. Temporary power, provided by a low-
maintenance supercap energy cell, enables DRAM to off-load the data to flash components.
Once power is restored, WRITE-back data is returned to DRAM so applications can return to
normal operation.
In the event of a primary server failure, applications are transferred to run on a secondary
server node. The secondary server will need access to the Syncro 9380-8e WRITE-back data
from the primary server in order to prevent data loss and allow the applications to run
continuously. The Syncro cache coherency solution maintains a mirror copy of the primary
server’s controller WRITE-back cache data on the secondary server’s controller. The high-speed
SAS interconnect provides a direct link for cache data mirroring between Syncro controllers.
This optimal solution protects data and maintains application continuity while accelerating
WRITE performance.