A Principled Technologies test report 2
File server performance on the Intel processor-powered
Dell PowerEdge R730xd with hybrid storage
FINDING THE RIGHT STORAGE COMBINATION
There are many storage options to match the heavy movement of data in and
out of your business’ datacenter. SSDs have become popular for increasing performance
without sacrificing storage space. No single solution fits every organization, however, so
IT admins employ different strategies based on infrastructure design, function, and size.
A key priority is to always maintain—or better yet increase—workload performance.
To help maintain or increase workload performance, Windows Server® 2012
offers Storage Spaces for storage pooling. Virtual drives can create these storage spaces
by grouping storage, such as from HDDs and SSDs, together in a storage pool. This
allows flexibility for the creation of large storage spaces when needed and, if pool
capacity is low, the addition of drives. When admins group HDDs and SSDs together on
the Intel processor-powered Dell PowerEdge R730xd, Microsoft Storage Spaces offers
automatic storage tiering, optimizing performance by automatically rearranging data so
that frequently accessed “hot” data is processed by the faster 1.8” SATA SSDs while the
“cold” data remains stored on the slower HDDs.
To learn about how the Dell PowerEdge R730xd can improve file server
performance, we conducted a series of tests using Iometer. The sections below review
our tests and results in detail.
WHAT WE FOUND
In simulating file server performance, we created a 1TB file with Iometer and
tested the following:
Dell PowerEdge R720xd with Windows Server 2008 R2 and Windows file
share services with all 24 HDDs in a RAID10 volume
Dell PowerEdge R730xd with Windows Server 2012 R2 with file share
services and a tiered Windows Storage Spaces volume containing all eight
front-plane 3.5″ HDDs and 18 1.8″ SATA SSDs
Each run had 2-minute ramp-up times and 20-minute run times, and each
worker had a queue depth of four. We report the median results. For more information
about our Iometer configuration and testing details, see Appendix A and Appendix C.
We found that the Dell PowerEdge R730xd with Windows Storage Spaces
provided support for 17.5 times the file server operations per second of the PowerEdge
R720xd. As Figure 1 shows, the Dell PowerEdge R730xd achieved 98,694 IOPS.
(35 pages)
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