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IBM FlashSystem 840 Product Manual
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IBM FlashSystem 840 Product Manual

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See also: Installation Manual
IBM FlashSystem 840 Product Guide
IBM Redbooks Product Guide
This IBM
Redbooks
Product Guide describes IBM FlashSystem
®
®
depend upon the ability to unlock business insights from massive volumes of data, and they need to be
able to do it faster than the competition. Flash technology has changed the economics of today's data
center by eliminating storage bottlenecks. Flash technology has redefined the performance, efficiency,
and reliability of data-intensive applications. In fact, IBM flash storage offerings provide extreme
input/output operations per second (IOPS) performance in a power-efficient footprint.
FlashSystem 840 is optimized for the data center to enable organizations of all sizes to strategically
harness the value of stored data. IBM FlashSystem 840 delivers a competitive advantage for the modern
organizations and enterprises. It provides flexible capacity and extreme performance for the most
demanding applications, including virtualized or bare-metal online transaction processing (OLTP) and
online analytical processing (OLAP) databases, virtual desktop infrastructures (VDI), technical computing
applications, and cloud environments. The system accelerates response times with IBM MicroLatency
access times as low as 90 µs write latency and 135 µs read latency to enable faster decision making.
The introduction of a low capacity 1 TB flash module allows FlashSystem 840 to be configured in capacity
points as low as 2 TB in protected RAID 5 mode. Coupled with 10 GB iSCSI, FlashSystem is positioned to
bring extreme performance to small and medium sized businesses (SMB) and growth markets. Figure 1
shows FlashSystem 840.
Figure 1. FlashSystem 840
Did you know?
FlashSystem 840 is configurable with 2 - 48 TB of usable capacity for increased flexibility.
FlashSystem 840 provides four flexible interface types including Fibre Channel, Fibre Channel over
Ethernet (FCoE), iSCSI, and InfiniBand to easily integrate into existing SAN environments.
FlashSystem 840 is cloud-optimized with support for 10 Gbit iSCSI interfaces, allowing private cloud
environments and Managed Service Providers (MSPs) to take advantage of high-performance
storage inside existing Ethernet-based infrastructures.
All active parts are hot-swappable, including the flash modules.
IBM FlashSystem 840 Product Guide
840. Today's global organizations
™
®
™
1

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Summary of Contents for IBM FlashSystem 840

  • Page 1 90 µs write latency and 135 µs read latency to enable faster decision making. The introduction of a low capacity 1 TB flash module allows FlashSystem 840 to be configured in capacity points as low as 2 TB in protected RAID 5 mode. Coupled with 10 GB iSCSI, FlashSystem is positioned to bring extreme performance to small and medium sized businesses (SMB) and growth markets.

  • Page 2: Key Features

    All components are easily accessible through the front or rear of the enclosure, so IBM FlashSystem 840 does not need to be moved in the rack and no top access panels or cables need to be extended.
  • Page 3 All components are easily accessible by way of the front or rear of the unit, so IBM FlashSystem 840 does not need to be moved in the rack, and any top access panels or cables do not need to be extended. This makes servicing the unit easy.
  • Page 4 Figure 3 shows the components of IBM FlashSystem 840 from the rear. One of the two canisters is removed, and you see two interface cards and two fan modules. The power supply unit to the right of the fans provides redundant power to the system. All components are concurrently maintainable except for the midplane, enclosure LED board, and power interposer board.

  • Page 5: Specifications

    135 µs. Write latency 90 µs. Maximum volume support 2 K (2048). (LUNs) System management IBM SAN Volume Controller GUI is available in any supported browser. IBM SAN Volume Controller CLI. SNMP. Email alerts. Syslog redirect. Cooling Four hot-swappable fan modules.
  • Page 6 9840-AE1 - Warranty period 1 year 9843-AE1 - Warranty period 3 years All FlashSystem 840 storage systems ship with the backup batteries, flash modules and blanks, power supplies, fans, and canisters preinstalled. (The flash module type and quantity and the host interface I/O cards must be pre-specified.)

  • Page 7: Interface Cards

    Interface cards IBM FlashSystem 840 supports only one interface type per system. For example, it is not possible to use two Fibre Channel interface cards and two InfiniBand interface cards in the same enclosure. Interface cards are sold in groups of four for a total of eight or 16 ports for each system.
  • Page 8 FC. Fibre Channel and FCoE Interface Cards Each FlashSystem 840 canister supports two Fibre Channel (FC) interface cards for a total of four FC interface cards, 8 Gbps FC cards support four ports, 16 Gbps cards support two ports.

  • Page 9: Flash Modules

    FlashSystem 840 provides configurable flash module capacity. All modules are hot-swappable. FlashSystem 840 can be populated with up to 12 flash modules in increments of 2, 4, 6, 8,10, or 12. These modules can be either 1 TB, 2 TB, or 4 TB and cannot be intermixed. Capacity can be upgraded by purchasing the AF1B (1 TB), AF10 (2 TB), or AF11 (4 TB) flash module feature codes as MES upgrades.
  • Page 10 IBM Two-dimensional (2D) Flash RAID The combination of IBM Variable Stripe RAID and system-level RAID 5 protection across flash modules is called two-dimensional (2D) Flash RAID. Variable Stripe RAID automatically and transparently protects against partial or full flash chip failures within the flash module, with no downtime or maintenance required.
  • Page 11 Scalable configurations FlashSystem 840 can scale usable capacity from as low as 2 TB to as high as 48 TB in its compact 2U enclosure. With FlashSystem 840, many granular capacity points are possible due to the three choices in flash module capacity: 1 TB, 2 TB, and 4 TB.
  • Page 12 FlashSystem 840 supports the RAID 5 configurations with the latest capacity points with the addition of 1 TB modules listed in Table 7. Table 7. Supported FlashSystem RAID 5 configurations with latest FlashSystem 840 capacity points Capacity Selection (in TB)

  • Page 13: Network Cables

    Network cables FlashSystem 840 supports the network cables that are listed in Table 8. Table 8. Supported network cables Description Feature code Maximum quantity supported Fibre Channel cables (supported on Fibre Channel ports) 1 m Fiber Cable (LC-LC) 3700 5 m Fiber Cable (LC-LC)

  • Page 14: Power Cords

    IBM FlashSystem 840 includes the usage of the common IBM SAN Volume Controller CLI and the IBM SAN Volume Controller GUI, which is based on the IBM XIV® GUI. IBM FlashSystem 840 supports...

  • Page 15: Web Interface

    SNMP, email forwarding (SMTP), and syslog redirection for complete enterprise management access. The storage configuration includes defining logical units with capacities, access policies, and other parameters. No software needs to be installed on host computers to administer FlashSystem 840 beyond a web browser with Java support or a standard SSH client.

  • Page 16: Supported Platforms

    Restoring configuration settings Supported platforms IBM FlashSystem 840 supports a wide range of operating systems (Windows Server 2003 and 2008, Linux, and IBM AIX®), hardware platforms (IBM System x®, IBM Power Systems™, and x86 servers not from IBM), HBAs, and SAN fabrics. For specific information, see the IBM System Storage Interoperation Center (SSIC): http://www.ibm.com/systems/support/storage/ssic/interoperability.wss...

  • Page 17: Physical And Electrical Specifications

    (revolving lines of credit, term loans, acquisition facilities, and inventory financing credit lines) for Business Partners. Offerings (for all customer segments: small, medium, and large enterprise), rates, terms, and availability can vary by country. Contact your local IBM Global Financing organization or visit the following website: http://www.ibm.com/financing...

  • Page 18: Related Publications And Links

    IBM Global Financing offerings are provided through IBM Credit LLC in the United States, and other IBM subsidiaries and divisions worldwide to qualified commercial and government customers. Rates are based on a customer's credit rating, financing terms, offering type, equipment type, and options, and may vary by country.
  • Page 19 Web sites. The materials at those Web sites are not part of the materials for this IBM product and use of those Web sites is at your own risk.IBM may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you.
  • Page 20 (® or ™), indicating US registered or common law trademarks owned by IBM at the time this information was published. Such trademarks may also be registered or common law trademarks in other countries. A current list of IBM trademarks is available on the web at http://www.ibm.com/legal/copytrade.shtml.

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