HPE 631670-B21 Getting Started Guide
QuickSpecs
HPE Smart Array P420 Controller
Overview
Page 1
HPE
HPE
The HPE Smart Array P420 Controller is a low profile, 6 Gb/s, PCIe 3.0, Serial Attached SCSI (SAS) RAID controller that provides
enterprise class, storage performance and data protection
It features eight internal SAS ports and delivers increased server uptime by providing advanced storage functionality, includ
online RAID level migration (between any RAID levels) with flash b
Data Compatibility among all models of Smart Array controllers allows simple and easy migration at any time when needs for
higher performance, capacity, and availability increase. Even new gene
format of previous generations of Smart Array controllers.
Models
HPE Smart Array P420/1GB FBWC 6Gb 2-ports Int SAS Controller
631670-B21
HPE Smart Array P420/2GB FBWC 6Gb 2-ports Int SAS Controller
631671-B21
Smart Array P420 Controller
Smart Array P420i Controller
for select HPE ProLiant Gen8 rack servers and tower servers.
ing
ack write cache, global online spare, and pre-failure warning.
rations of Smart Array controllers can understand the data
HPE Smart Array P420
Controller
QuickSpecs
HPE Smart Array P420 Controller
Standard Features
Page 2
The Smart Array
Advantage
HPE's innovative design and integration work of the Smart Array family of products creates customer
value that is unmatched in the industry. Use of Smart Array products ac
results in a much lower Total Cost of Ownership (TCO) than any other server storage RAID product.
The HPE Smart Array family brings an unparalleled return on investment through:
Data Compatibility
upgrades any time needs for higher performance, capacity, and availability increase. Even successive
generations of Smart Array controllers understand the data format of other Smart Array Controllers.
Consiste
utilize a standard set of management and utility software. These tools minimize Total Cost of
Ownership (TCO) by reducing training requirements and technical expertise necess
maintain the HPE server storage.
SmartDrive Carrier
Universal Hard Drive form factor is for disk enclosures and storage systems. With compatibility across
many
increased storage capacity, migrate data between systems, and easily manage spare drives.
Pre
allows replacement of failing drives prior to actual failure. For complete details, consult the
Support Center or refer to your HPE Server documentation.
Key Features
• The P420 Controller supports up to 60 drives depending on the server implementation.
Management Features
• Online array expansion (with FBWC)
• Online RAID level migration (with FBWC)
among most current shipping Smart Array controllers allows simple and easy
nt Configuration and Management Tools. Most current shipping Smart Array products
form factor is for use across multiple Hewlett Packard Enterprise servers,
enterprise platforms, you are free to deploy and re-deploy these drives to quickly deliver
-Failure Warranty means HPE Insight Manager not only reports when a drive is going to fail but
• Seamless upgrades from past generations and upgrades to next generation HPE high
performance and high capacity Serial Attached SCSI Smart Array controllers.
• 6Gb/s SAS technology delivers high performance and data bandwidth and contains full
compatibility with 6Gb/s SATA technology.
• x8 PCIe 3.0 host interface technology delivers high performance and data bandwidth up to 8
GB/s maximum bandwidth.
• Modular, easy-to-upgrade design lets you optimize performance by upgrading from 40-bit
512MB cache to 72-bit 1GB Flash Backed Write Cache or 72-bit 2GB Flash Backed Write Cache
(FBWC).
• Addition of the flash backed cache upgrade enables array expansion, logical drive extension,
RAID migration, and stripe size migration.
• Standard on the P420 are RAID 6 ADG, RAID 60 ADG, RAID 1 ADM, Capacity Expansion,
mirror split, recombine, and rollback in Online Mode, Drive Erase, Performance OptimizationDegraded Reads and Read Coalescing, Move/Delete any individual LUNS and Online Split
Mirror
• The HPE SSD Smart Path feature included in the Smart Array software stack improves SSD
read for all RAID levels and RAID 0 write operations by optimizing the path to each SSD
attached to the controller
• The HPE SmartCache licensed feature (available as an additional option) is a controller-based
read caching solution in a DAS environment that caches the most frequently accessed data
("hot" data) onto lower latency SSDs to dynamically accelerate application workloads.
• Mix-and-match SAS and SATA hard drives, lets you deploy drive technology as needed to fit
your computing environment.
• Software consistency on most current shipping Smart Array products: HPE Smart Storage
Administrator, HPE Systems Insight Manager (SIM), and Intelligent Provisioning.
• Low-profile PCI Express form factor - ships with a full size bracket for deployment in either a
low-profile or full sized slot.
ross multiple applications
ary to install and
HPE
• Online Advanced Capacity Expansion (with FBWC)
• Online logical drive extension (with FBWC)
QuickSpecs
HPE Smart Array P420 Controller
Standard Features
Page 3
• Online stripe size migration (with FBWC)
Ports
• Eight (8) SAS physical links distributed across 2 internal x4 wide port connectors.
Performance
• 6Gb/s SAS [(600MB/s bandwidth per physical link)]
Native Command
Queuing
Native Command Queuing (NCQ) is a technology designed to increase performance of SATA hard disk
drives by allowing the individual hard disk to internally optimize the order in which received read and
write commands are executed. This can reduce the amount of unnecessary going back
the drive's heads, resulting in in
read/write requests are outstanding, most often occurring in server or storage
Without NCQ the drive has to process and complete one command at a time. For NCQ to be enabled,
must be supported and turned on in the controller and in the hard drive itself.
NOTE:
support NCQ: https://www.hpe.com/h20195/v2/gethtml.aspx?docname=c04111725
Capacity
Given the increasing need for high performance and rapid capacity expansion, the SA-P420 Controller
offers:
Above stated total internal storage LFF is based on the
storage is dependent on the server.
Availability
Provides increased server uptime by providing advanced storage functionality:
Fault Prevention
The following features offer detection of possible failures before they occur, allowing preventive action
• Online mirror split, recombine and rollback (with FBWC )
• Unlimited global online spare assignment
• User selectable expand and rebuild priority
• User selectable RAID level and stripe size
• User selectable read and write cache sizes
• Supports Predictive Spare Activation
• x8 6Gb/s SAS physical links (compatible with 3Gb/s SATA )
• 512 MB 72-bit wide DDR3-800MHz Flash Backed Write Cache, 1 GB 72-bit wide DDR3-
1333MHz Flash Backed Write Cache or 2GB 72-bit wide DDR3-1333MHz Flash Back Write
Cache provides up to 10.6 GB/s maximum bandwidth (on the DDR3-1333MHz cache)
• x8 PCIe 3.0 host interface provides maximum bandwidth
• Read ahead caching
• Write-back caching (with FBWC)
-and-forth on
creased performance for workloads where multiple simultaneous
-type applications.
it
Please see the SATA Hard Drive QuickSpecs for specific SATA hard drive capacities that
• Up to 240TB of total internal storage with 60 x 4TB LFF SATA hard drives
• Up to 24TB of total internal storage with 27 x 900GB SFF SAS hard drives
HPE SL4540 Gen8 server. Maximum internal
• Online RAID level migration between any RAID levels (with FBWC )
• Online stripe size migration
• Online capacity expansion
• Online logical drive extension
• Online active drive replacement
• Online drive firmware upgrade
• Unlimited global online spare
• Pre-Failure Warranty
QuickSpecs
HPE Smart Array P420 Controller
Standard Features
Page 4
to be taken:
Fault Tolerance
Keeps data available and server running while a failed drive is being replaced; several fault tolerance
configurations are supported including:
were a single physical drive. Each RAID 5 parity group can sustain a single drive failure without
(Drive Mirroring): Supported with a minimum of 2 drives. This allocates half of the
Fault Recovery
Minimizes downtime, reconstructs data, and facilitates a quick recovery from drive failure
Ease of Use
Consistency and upgradeability on most current shipping Smart Array products make them unique in
• S.M.A.R.T.: Self Monitoring Analysis and Reporting Technology first developed at HPE detects
possible hard disk failure before it occurs, allowing replacement of the hard drive before a real
failure occurs.
• Drive Parameter Tracking monitors drive operational parameters, predicting failure and
notifying the administrator.
• Dynamic Sector Repairing continually performs background surface scans on the hard disk
drives during inactive periods and automatically remaps bad sectors, ensuring data integrity.
• Smart Array Cache Tracking monitors integrity of controller cache, allowing pre-failure
preventative maintenance.
• RAID 6 (Advanced Data Guarding): Supported with a minimum of 4 drives. This allocates two
sets of parity data across drives. This level of fault tolerance can withstand a double drive
failure without downtime or data loss.
• RAID 60: Supported with a minimum of 8 drives. This volume is composed of two or more
RAID 6 sub-volumes (parity groups) where data is striped across each parity group as if it
were a single physical drive. Each RAID 6 parity group can sustain up to two drive failures
without incurring data loss.
• RAID 5 (Distributed Data Guarding): Supported with a minimum of 3 drives. This allocates one
set of parity data across drives. This level of fault tolerance can withstand a single drive failure
without downtime or data loss.
• RAID 50: Supported with a minimum of 6 drives. This volume is composed of two or more
RAID 5 sub-volumes (parity groups) where data is striped across each parity group as if it
incurring data loss.
• RAID 1 & 10
drive array to the data and the other half to the mirrored data, providing two copies of the
data.
• RAID 1 ADM & 10 ADM (Advanced Data Mirroring): Supported with a minimum of 3 drives.
RAID 1 ADM creates redundant copies of the data using 3 drives. RAID 10 ADM stripes data
across two or more sets of RAID 1 ADM volumes. This level of fault tolerance can withstand a
double drive failure within a RAID 1 ADM volume without downtime or data loss.
• Recovery ROM: This feature protects the user from a firmware image corruption by storing a
redundant copy of the firmware image. If the active firmware image becomes corrupt, the
controller will use the redundant firmware image and continue operating.
• On-Line Spares: There is no limit to the number of spare drives that can be installed prior to
drive failure. If a failure occurs, recovery begins with an On-Line Spare and data is
reconstructed automatically.
• DRAM ECC detects and corrects data bit errors.
• Battery-backed write cache upgrade provides for up to two days of battery power for data
cache retention. The data backup duration could be extended anytime the server's auxiliary
power is available during system power down.
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