QLogic 2500 Series 8Gb FC Adapters Offer Performance Benefits - Manual (Page 2)

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White PaPer
Test Setup with 8Gb
For this test, QLogic ran the latest available 8Gb adapter drivers from QLogic
on an intel
® Stoakley Dual Processor(X5355) 2.66Ghz – Quad Core. the
system contained 4GB raM and the Windows Server ® 2003 SP1 operating
system. the server was connected to an 8Gb QLogic 5802V FC switch via
the QLe2562 8Gb adapter using only one port. the storage attached to
the switch was a 4Gb ramSan-320 solid state disk, attached to four target
ports on two Small Form factor Pluggables (SFPs). the test configuration is
illustrated in the following figure.
8Gb Test Setup
the tests were completed utilizing QLogic 8Gb adapters and switches. the
Stoakley and ramSan solid state disk storage were commercially available;
the 8Gb adapters and switches were available exclusively from QLogic
at the time the test was run. all measurements were made with default
settings of the adapters.
Test Procedure
the tests were executed as per the previous 8Gb Test Setup configuration
as follows:
1. the QLogic FC adapters (PCie) were installed with the appropriate driver
on the test server.
2. iometer from intel measured maximum iOPS on the adapter for various
block sizes, from 0.5KB to 1024KB. tests were conducted for the
following environments:
– Sequential Writes
– Sequential reads
– Sequential read/Writes (used in this report)
3. Steps 1 and 2 were repeated with QLogic 4Gb (QLe2462) PCie adapters
and a QLogic 4Gb switch. the server and storage remained the same,
but the storage network was changed. the tests were performed per
the 4Gb Test Setup, as shown in the following figure.
4. the results were compared and the performance was calculated based
on the test reports.
as 8Gb Fibre Channel (FC) Storage area Networks (SaNs) become
a reality, it professionals must ensure a balance within the data
center infrastructure to meet the
Minimum Business attributes . With
continued demands in the data center, it is imperative to deploy a
scalable architecture to meet a full spectrum of concerns, including
cost, performance, and backwards compatibility. New technologies
continue to push the data center curve; server virtualization, multi-core
processors, and faster server host bus architectures drive the need
for increased iOPS and bandwidth requirements. the next generation
8Gb FC adapters and switches provide the evolution of increased
performance to exceed the speed requirements to support the
Next
Generation Data Centers .
to meet the ever-growing requirements on the SaN, enterprise SaN
users need to deploy a scalable adapter architecture. the QLogic
2500 series 8Gb FC adapter meets the need for the high performance
required to meet the volume of data or throughput (measured in MBps)
and the load of data requests (measured by iOPS). Key applications
will benefit from the scalability of 8Gb FC adapters to meet an increase
in server virtualization workloads, Microsoft
® exchange seats, and
the high-speed requirements of Disk to Disk (D2D) backup and
disaster recovery.
this white paper focuses exclusively on the raw bandwidth and iOPS
performance capability of the QLogic 2500 series 8Gb FC adapter, which
provides “the best in class” 8Gb performance. the QLogic 8Gb adapter
provides an unprecedented level of higher performance, superior
scalability, and enhanced reliability, exceeding the requirements of the
next generation data centers.
Executive Summary