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or newer firmware multiple Disk Groups can be allocated into a Storage Pool for use with the Virtual
Storage features.
The MSA 2040 arrays support 512 volumes and up to 512 snapshots in a system. All of these volumes can
be mapped to LUNs. Maximum LUN sizes up to 128 TB, the LUNs size are dependent on the storage
architecture: Linear vs. Virtualized. Thin Provisioning allows the user to create the LUNs independent of the
physical storage.
The GL200 firmware or newer introduces Storage Pools – which are comprised of one or more Disk Groups.
LUNs are no longer be restricted to a single Vdisk as with Linear Storage. A volume’s data on a given LUN
can now span all disk drives in a pool. When capacity is added to a system, users will benefit from the
performance of all spindles in that pool.
Leveraging Storage Pools, the MSA 2040 supports large, flexible Volumes with sizes up to 128TB and
facilitates seamless capacity expansion. As volumes are expanded data automatically reflows to balance
capacity utilization on all drives.
RAID 0, 1, 3, 5, 6, 10,
50
In addition to the usual RAID levels, the MSA 2040 features several important additional levels. RAID 6
offers the highest level of RAID protection. It allocates two sets of parity data across drives and allows
simultaneous write operations. It can withstand two simultaneous drive failures without downtime or data
loss. RAID 10 is mirroring and striping without parity and allows large Disk Groups to be created with high
performance and mirroring for fault tolerance. RAID 50 combines the block striping and parity of RAID 5
with the straight block striping of RAID 0, yielding higher performance than RAID 5 through the addition of
RAID 0, particularly during writes.
The performance figures provided here are for reference as many variables exist between array
configurations, workloads, hard drive types, disk group setup parameters and host system setup. All
performance information is measured using Linear Storage
HP has traditionally published a set of end-to-end MSA performance specifications which feed into HP Sizer
tools which are based on conservative real-world configurations. For consistency, the MSA 2040
performance numbers have been documented in both Benchmark and End-to-End Performance tables.
Configuration details are provided for both test scenarios. These numbers are preliminary and subject to
change without notice.
Benchmark Performance Results:
MSA 2040 Array Performance
HP MSA 2040
Converged SAN Controller
with HDD
HP MSA 2040
Converged SAN Controller
with SSD
MSA 2040 RAID 10 Performance Results
1
MSA 2040 RAID 1 SSD Performance Results
2
(38 pages)
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