HP MODULAR SMART ARRAY 2000 SA G2 - Manual (Page 8)

Users may configure a 24-drive MSA2000sa G2 SFF array head
with up to three 12-drive LFF MSA2000 3.5-inch disk enclosures.
This is an excellent method for a configuration that support fast
SFF enterprise-class SAS drives in the array head, combined with
economical LFF drives staged for archival purposes, all in the
same array.
Qualification of larger capacity drives is ongoing.
LUNs The MSA2000 family of arrays supports 511 LUNs and LUN sizes up to
16TB. The arrays support LUN expansion and deletion of any LUN.
RAID 0, 1, 3, 5, 6, 10, 50 In addition to the usual RAID levels, the MSA2000 family features
several important additional levels. RAID 6 is 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. It is the most popular of the multiple RAID levels,
allowing large arrays with high performance in most cases and superior
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.
Configuration and
Management Tools HP StorageWorks MSA Storage Management Utility (SMU),
Management access, out-of-band: WEB GUI, CLI. Interface Types: Mini
DB9 RS232, 10/100 Ethernet Protocols Supported SNMP, SSL, SSH,
SMTP, HTTP, Telnet.
Hot Plug Expansion
and Replacement
Support The MSA2000sa G2 supports hot plug expansion and replacement of
redundant controllers, fans, power supplies, and I/O modules for
simple, fast installation and maintenance.
Snapshot and Clone Optional controller based functionality. Offers higher levels of data
protection, enabling an almost instant recovery from data failure or
corruption. Offers alternative development testing of 'offline' production
data and the ability to backup snapped/cloned data.
Performance Performance numbers are a guideline as established by tests using
RAW I/O in an Operating System Agnostic test lab environment. A total
of 96 72GB 15K SAS drives were used in a dual controller configuration
of eight 12 Disk vdisks, eight 806 GB volumes, and two volumes per
host. Four hosts directly attached to the MSA2000sa G2 were used in
this test configuration (results cannot be expected with a single host).
Results were achieved in Sequential Writes with 256K blocks; all
random test were based on 8K block sizes.
Number and type of applications, drive type, operating system used,
and the number of hosts will affect overall performance.
Workload MSA2300sa G2
Host Connect 3Gb SAS
MSA2000 RAID 10 Performance Results (rounded)
Random Reads IOPs 21861
Random Writes IOPs 14491
Random Mix IOPs 60/40
read/write 17700
Sequential Reads MB 1049
Sequential Writes MBs 531
MSA2000 RAID 5 Performance Results (rounded)
Random Reads IOPs 21019
Random Writes IOPs 2705
Sequential Reads MBs 1051
Sequential Writes MBs 644
QuickSpecs
HP StorageWorks 2000sa G2 Modular Smart Array
Family Information
DA - 13331 Worldwide QuickSpecs — Version 2 — 7.31.2009 Page 8