Lenovo ThinkSystem DE4000F All Flash Storage

 

• Maximizes efficiency by eliminating overprovisioning, all while reducing cost by cutting space, power and cooling requirements

• Flash-optimized arrays are designed to work in the most demanding environments

• Extreme performance with up to 1.0M IOPS and sub-100 microsecond latency

Introduction

Figure 1. Lenovo ThinkSystem DE4000F 2U24 SFF enclosure

Did you know?

The ThinkSystem DE4000F scales up to 2.94 PB of raw storage capacity.

The ThinkSystem DE4000F offers block storage connectivity with support for 1/10 Gb iSCSI or 4/8/16 Gb FC, and 12 Gb SAS, 10/25 Gb iSCSI, or 8/16/32 Gb FC at the same time.

For the ThinkSystem DE4000F, customers can change the host port protocol from FC to iSCSI or from iSCSI to FC for the SFP+ host ports built into the controller (base host ports), or the universal SFP+ host ports on the host interface card (HIC ports), or for all SFP+ base and universal HIC ports.

Key features

The ThinkSystem DE4000F offers the following key features and benefits:

• All-flash array capabilities to meet the demand for higher speed storage and provide higher IOPs and bandwidth with lower power usage and total cost of ownership than hybrid or HDD-based solutions.
• Scalable entry-level storage with dual active/active controller configurations with 8 GB or 32 GB cache per controller for high availability and performance.
• Improved performance and data protection with Dynamic Disk Pools (DDP) technology, as well as support for traditional RAID 0, 1, 3, 5, 6, and 10.
• Flexible host connectivity to match diverse client needs with support for 1/10 Gb iSCSI or 4/8/16 Gb FC, and 12 Gb SAS, 10/25 Gb iSCSI, or 8/16/32 Gb FC connectivity at the same time.
• 12 Gb SAS drive-side connectivity with support for up to 24x 2.5-inch small form factor (SFF) drives in the 2U24 SFF enclosures.
• Scalability to up to 192 SFF drives with the attachment of up to seven ThinkSystem DE240S 2U24 SFF expansion enclosures to satisfy growing needs for storage capacity and performance.
• Rich set of storage management functions comes with the system, including Dynamic Disk Pools, snapshots, volume copy, thin provisioning, and asynchronous mirroring.
• Optional synchronous mirroring licensed function for continuous data availability.
• Intuitive, web-based GUI for easy system setup and management.
• Designed for 99.9999% availability with redundant hot-swap components, including controllers and I/O modules, power supplies, proactive maintenance, and non-disruptive firmware upgrades.

The following solid-state drives are supported in the 2U24 SFF enclosures:

• Capacity-optimized SSDs (1 drive write per day [DWD]): 3.84 TB, 7.68 TB, and 15.36 TB
• High performance SSDs (3 DWD): 800 GB, 1.6 TB, and 3.2 TB
• High performance self-encrypting FIPS SSDs (3 DWD): 1.6 TB

All drives are dual-port and hot-swappable. Drives of the same form factor can be intermixed within the appropriate enclosure, which provides the flexibility to address performance and capacity needs within a single enclosure.
Up to seven ThinkSystem DE240S 2U24 SFF expansion enclosures are supported by a single ThinkSystem DE4000F system. More drives and expansion enclosures are designed to be dynamically added with virtually no downtime, which helps to quickly and seamlessly respond to ever-growing capacity demands.
The ThinkSystem DE4000F offers high levels of system and data availability with the following technologies:

• Dual-active controller modules with automatic load balancing and failover
• Mirrored data cache with flash backup (battery-backed destaging to flash)
• Dual-port SAS SSDs with automatic drive failure detection and rebuild with global hot spares
• Redundant, hot-swappable and customer replaceable hardware components, including SFP/SFP+ transceivers, controller and I/O modules, power supplies, and drives
• Automated path failover support for the data path between the host and the drives with multipathing software
• Non-disruptive controller and drive firmware upgrades

Components and connectors

The following figure shows the front of the ThinkSystem DE4000F and DE240S 2U SFF enclosures.

Figure 2. ThinkSystem DE4000F and DE240S 2U SFF enclosures front view
The front of the ThinkSystem DE4000F and DE240S 2U SFF enclosures includes the following components:

• 24 SFF hot-swap drive bays
• Enclosure status LEDs
• Enclosure ID LED

The following figure shows the rear of the ThinkSystem DE4000F 2U controller enclosure.

Figure 3. ThinkSystem DE4000F 2U controller enclosure rear view
The rear of the ThinkSystem DE4000F 2U controller enclosure includes the following components:

• Two redundant hot-swap controllers, each with the following ports:
  • Two SFP+ base host ports for 1/10 Gb iSCSI or 4/8/16 Gb FC connectivity.
  • One slot for the host interface card (a host interface card is required):
    • Four 12 Gb SAS x4 host ports (Mini-SAS HD SFF-8644).
    • Four 10/25 Gb iSCSI host ports (SFP28).
    • Four 8/16/32 Gb FC host ports (SFP+).
    • Four 1/10 Gb iSCSI or 4/8/16 Gb FC host ports (SFP+).
  • Two 12 Gb SAS x4 expansion ports (Mini-SAS HD SFF-8644) for connections to the expansion enclosures.
  • One RJ-45 10/100/1000 Mb Ethernet port for out-of-band management.
    Note: The Ethernet port (P2) next to the GbE management port is not available for use.
  • Two serial console ports (RJ-45 and Micro-USB) for another means to configure the system.
  • One USB Type A port (reserved for factory use)
• Two redundant hot-swap 913 W (100 - 240 V) AC power supplies (IEC 320-C14 power connector) with integrated cooling fans.

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