HP MSA 2040 Quickspecs page 10

QuickSpecs
Family Information
Scalability
Vdisks
LUNs
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
Performance
MSA 2040 3.5-inch Disk Enclosure. This 2U unit has twelve LFF (3.5-inch) drive bays and accepts for MSA
dual-ported SAS and SAS MDL drives. The pre-configured HP MSA 2040 LFF Drive Enclosure (C8R18A) has
two I/O modules and supports both single and dual controller arrays.
This 3.5-inch MSA disk enclosure can be attached to MSA 2040 LFF or SFF array head.
Each configured model ships standard with two .5m mini-SAS to mini-SAS cables for connection to
the MSA 2040 array expansion port or existing disk enclosure cascade port.Up to seven MSA 2040
disk enclosures (LFF and/or SFF) can be attached to a MSA 2040 Array.
The MSA 2040 does not support LFF SATA HDDs.
D2700 2.5-inch Disk Enclosure. This 2U storage enclosure (AJ941A) is designed to support twenty five HP
Storage or ProLiant 2.5-inch Universal form factor (SFF) 6Gb, SSD, SAS or SAS MDL hard drives. It ships
standard with dual I/O modules installed.
This 2.5-inch D2700 disk enclosure can be attached to MSA 2040 LFF or SFF array head
The D2700 enclosure ships with a two .5m mini-SAS to mini-SAS cables for connection to the MSA
2040 array expansion port or existing disk enclosure cascade port.
Up to seven D2700 may be attached to the MSA 2040 array head, with support for up to a total of 199
SFF drives.
LFF and/or SFF Disk Enclosures can be mixed up to the maximum of 7 total Disk Enclosures
The MSA 2040 array configurationsare designed to allow an installation to begin with smaller capacity and
be able to grow gradually as needed. The flexibility of SSD, SAS or SAS MDL drives technology, form factors,
sizes, speeds, and costs per GB allows a system to easily fit in almost any budget.
Large Form Factor configurations can scale up to 48 TB SAS MDL, expandable to 384 TB SAS MDL with
the addition of a maximum of seven MSA 2040 3.5-inch Disk Enclosures.
Small Form Factor configurations can scale from 28.8 TB SAS. With the addition of seven D2700
JBODs, the MSA 2040 storage can support 238TB SAS.
Users may configure a 24-drive MSA 2040 array head with 12-drive LFF MSA 2040 3.5-inch disk
enclosures. This is an excellent method for a configuration that supports high-speed SFF SSDs or fast
SFF enterprise-class SAS drives in the array head, combined with economical LFF drives staged for
archival purposes, all in the same array.
Vdisks can span across multiple enclosures, where drives used in the Vdisk can be contained in different
enclosures. The maximum number of drives that can be used in RAID 1 Vdisk is 2; RAID 0, 3, 5, 6, and 10 is
16; and for RAID 50 Vdisk is 32.
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 64 TB depending on the disk and RAID configuration chosen.
The array supports expansion and deletion of any LUN.
offersthe 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 Vdisks 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 your reference as many variables exist between array
configurations, workloads, hard drive types, vdisk setup parameters and host system setup.
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
DA - 14603 Worldwide — Version 4 — December 9, 2013
HP MSA 2040 Storage
Page 10