Attribute	Specification
Form factor	DE4000H 2U24 SFF controller enclosure (Machine Type 7Y75A00TWW ): 2U rack mount.
Controller configuration	Dual active-active controller configuration with automatic load balancing.
RAID levels	RAID 0, 1, 3, 5, 6, and 10; Dynamic Disk Pools. Note: RAID 3 can be configured only through the CLI.
Expansion enclosure support	DE4000H 2U24 SFF controller: 3x DE120S, 3x DE240S or 2x DE600S
Drive bays	DE4000H 2U24 SFF controller: With 3x DE120S LFF expansion enclosures: 24 SFF + 36 LFF drive bays: (60 drives) With 3x DE240S SFF expansion enclosures: 24 SFF + 72 SFF drive bays: (96 drives) With 2x DE600S LFF expansion enclosures: 24 SFF + 120 LFF drive bays: (144 drives)
Drive technology	12 Gb SAS and NL SAS HDDs and FIPS HDDs, 12 Gb SAS SSDs and FIPS SSDs. Intermix of HDDs and SSDs is supported within a system. Intermix of HDDs and SSDs is not supported within a volume group or disk pool. A maximum of 120 SAS SSDs is supported. Intermix of FIPS drives and non-FIPS drives is supported within a system. Intermix of FIPS drives and non-FIPS drives is not supported within a volume group or disk pool.
Drive expansion connectivity	2x 12 Gb SAS x4 (Mini-SAS HD SFF-8644) expansion ports on each of two controllers in the controller enclosure for the attachment of the expansion enclosures. 4x 12 Gb SAS x4 (Mini-SAS HD SFF-8644) expansion ports on each of two I/O modules in the expansion enclosure for the attachment to the controller enclosure and daisy chaining of the expansion enclosures.
Drives	2U24 SFF drives: 10K rpm SAS HDDs 10K rpm SAS FIPS HDDs SAS SSDs (1 DWD) SAS SSDs (3 DWD) SAS FIPS SSDs (3 DWD)
Host connectivity	Host connectivity ports provided using host interface cards (HICs) (per controller enclosure with two controllers): 8x 12 Gb SAS host ports (Mini-SAS HD, SFF-8644) (4 ports per controller) 8x 10/25 Gb iSCSI SFP28 host ports (DAC or SW fiber optics [LC]) (4 ports per controller) 8x 8/16/32 Gb FC SFP+ host ports (SW fiber optics [LC]) (4 ports per controller) Note: Two host interface cards are required for selection (one per controller). The controllers no longer offers base ports. Host connectivity is provided via the HICs.
Host operating systems	Microsoft Windows Server; Red Hat Enterprise Linux (RHEL); SUSE Linux Enterprise Server (SLES); VMware vSphere.
Standard software features	Dynamic Disk Pools, SSD read cache, snapshots (up to 128 targets), volume copy, thin provisioning (DDP only), encryption (requires optional FIPS drives), and data assurance.
Optional software features	Snapshots (up to 512 targets), synchronous mirroring, and asynchronous mirroring.
Performance*	Up to 300 000 random read IOPS (4 KB blocks). Up to 109 000 random write IOPS (4 KB blocks). Up to 9.2 GBps sequential read throughput (64 KB blocks). Up to 2.7 GBps sequential write throughput (64 KB blocks).
Configuration maximums**	Maximum storage capacity: 3.07 PB Maximum number of logical volumes: 512 Maximum logical volume size: 2 PB Maximum thin-provisioned logical volume size (DDP only): 256 TB Maximum number of drives in a RAID volume group: RAID 0, 1/10: 192 RAID 3, 5, 6: 30 Maximum number of DDP arrays: 20 Maximum number of drives in a DDP array: 192 (11 drives minimum) Maximum SSD read cache size: DE4000 8GB Controller: 4 TB SSD read cache DE4000 32GB Controller: 5 TB SSD read cache Maximum number of hosts: 256 Maximum number of snapshots: 512 (requires an optional license) Maximum number of mirroring pairs: 32 (requires an optional license)
Cooling	Redundant cooling with two cooling modules (4U60 LFF) or with the fans that are built into power supplies (2U24 SFF and 2U12 LFF).
Hot-swap parts	Controllers, I/O modules, drives, power supplies, cooling modules (4U60 LFF only), and SFP+/SFP28 transceivers.
Management ports	1x 1 GbE port (UTP, RJ-45) per controller for out-of-band management. 2x Serial console ports (RJ-45 and Micro-USB) for system configuration. In-band management via I/O path.
Management interfaces	System Manager web-based GUI; SAN Manager standalone GUI; SSH CLI; Serial console CLI; SMI-S Provider; SNMP, email, and syslog alerts; optional Lenovo XClarity.
Security features	Secure Socket Layer (SSL), Secure Shell (SSH), user level security, role-based access control (RBAC), LDAP authentication.
Warranty and support	Three-year customer-replaceable unit and onsite limited warranty with 9x5 next business day (NBD) parts delivered. Also available are 9x5 NBD onsite response, 24x7 coverage with 2-hour or 4-hour onsite response, or 6-hour or 24-hour committed repair (select areas), YourDrive YourData, Premier Support, and 1-year or 2-year post-warranty extensions.
Software maintenance	Included in the base warranty and any Lenovo warranty extensions.
Dimensions	2U24 SFF enclosure: Height: 85 mm (3.4 in.) Width: 449 mm (17.7 in.) Depth: 553 mm (21.8 in.)
Weight	DE4000H 2U24 SFF controller enclosure (7Y75): 24.59 kg (54.2 lb)

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