AbstractLenovo ThinkSystem DE4H is a scalable, hybrid entry-level storage system that is designed to provide performance, simplicity, capacity, security, and high availability for medium to large businesses. The ThinkSystem DE4H delivers enterprise-class storage management capabilities with a wide choice of host connectivity options, flexible drive configurations, and enhanced data management features.
This product guide provides essential technical and pre-sales information on the Lenovo ThinkSystem DE4H Hybrid Storage Array, its key features and specifications, components and options, and configuration guidelines.
This guide is intended for technical specialists, sales specialists, sales engineers, and IT architects who want to learn more about the ThinkSystem DE4H Hybrid Storage Array and consider its use in their solutions.
IntroductionLenovo ThinkSystem DE4H is a scalable, hybrid entry-level storage system that is designed to provide performance, simplicity, capacity, security, and high availability for medium to large businesses. It delivers enterprise-class storage management capabilities with a wide choice of host connectivity options, flexible drive configurations, and enhanced data management features. The ThinkSystem DE4H is a perfect fit for a wide range of enterprise workloads, including big data and analytics, video surveillance, technical computing, backup and recovery, and other storage I/O-intensive applications.
ThinkSystem DE4H models are available in a 2U rack form-factor with 24 small form-factor (2.5-inch SFF) drives (2U24 SFF), 12 large form-factor (3.5-inch LFF) drives (2U12 LFF), or a 4U rack form-factor with 6 LFF drives (4U6 LFF) and include two controllers, each with 8 GB cache for a system total of 16 GB. Universal 1 Gb iSCSI or 4/8/16 Gb Fibre Channel (FC) ports provide base host connectivity, and the host interface cards provide additional 1 Gb iSCSI or 4/8/16 Gb FC, 12 Gb SAS, 1/25 Gb iSCSI, or 8/16/32 Gb FC connections.
The ThinkSystem DE4H Storage Array scales up to 192 drives with the attachment of Lenovo ThinkSystem DE12S 2U12, DE24S 2U24 SFF, and DE6S 4U6 LFF Expansion Enclosures. It also offers flexible drive configurations with the choice of 2.5-inch (SFF) and 3.5-inch (LFF) form factors, 1 K rpm SAS and 7.2 K rpm NL SAS hard disk drives (HDDs), and SAS solid-state drives (SSDs).
Did you know?The ThinkSystem DE4H scales up to 2.3 PB of raw storage capacity, and it offers block storage connectivity with support for 1 Gb iSCSI or 4/8/16 Gb FC, and 12 Gb SAS, 1/25 Gb iSCSI, or 8/16/32 Gb FC at the same time.
For the ThinkSystem DE4H, 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.
- Scalable entry-level hybrid storage with dual active/active controller configurations with 8 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 , 1, 3, 5, 6, and 1
- Flexible host connectivity to match diverse client needs with support for 1 Gb iSCSI or 4/8/16 Gb FC, and 12 Gb SAS, 1/25 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, up to 12x 3.5-inch large form factor (LFF) drives in the 2U12 LFF enclosures, or up to 6x 3.5-inch LFF drives in the 4U6 LFF enclosures
- Scalability to up to 192 SFF or LFF drives with the attachment of the ThinkSystem DE24S 2U24 SFF, DE12S 2U12 LFF, or DE6S 4U6 LFF expansion enclosures to satisfy growing needs for storage capacity and performance
- Rich set of standard storage management functions available at no extra cost, including Dynamic Disk Pools, SSD read cache, snapshots, volume copy, thin provisioning, and encryption (requires optional FIPS drives)
- Optional licensed functions, including higher number of snapshots for greater scalability and synchronous or asynchronous mirroring for continuous data availability
- Intuitive, web-based GUI for easy system setup and management
- Designed for 99.999% availability with redundant hot-swap components, including controllers and I/O modules, power supplies, cooling modules (4U6 LFF enclosures only), proactive maintenance, and non-disruptive firmware upgrades
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