VNX7500 Storage Processor Enclosure (SPE) is a high-performance unified storage system based on modular architecture that integrates hardware components for block, file, and object with concurrent support for native NAS, CIFS, iSCSI, Fibre Channel, and FCoE protocols. The VNX5700 delivers file (NAS) functionality via X-Blade data movers and block (iSCSI, FCoE, and FC) storage via dual storage processors leveraging full 6Gbps SAS disk drive topology. Optimized for virtual applications, the VNX5700 achieves new levels of performance, compliance, protection and ease of management. VNX5700 allows you to take advantage of Flash performance using all Flash (EFD) drives for extendable cache and quick virtualization with its high bandwidth configurations.

DELL EMC VNX7500 Base Knowledge .
The VNX7500 is a high-end/large-capacity storage platform. It offers Block, File, or Unified Block and File services. These services are composed of:

• Block-only—Includes a storage processor enclosure (SPE), a 1U 1.2 KW or a 2U 2.2 KW standby power supply (SPS), and disk-array enclosures (DAEs) for holding hard disk drives that are integrated to facilitate Fibre Channel, Fibre Channel over Ethernet (FCoE), and iSCSI Block services to Windows and UNIX hosts.
• File-only—Adds the Data Mover enclosure (DME) and Control Station (CS) to SPE, SPS, and DAEs to facilitate File services to CIFS/NFS clients.
• Unified Block and File—Uses same hardware as the File-only configuration but adds FC, iSCSI, and FCoE I/O connectivity to provide Block services to host simultaneously so as to provide File services to clients.

Form Factor: 6U – 7U Block | 8U – 13U File / Unified
Chassis: N/A
Standby Power Supply:
Disk Array Enclosures (DAE):

• 4U 3.5” x 60
  • VNX6GSDAE60
  • VNX6GSDAE60P
• 3U 3.5” x 15
  • VNX6GSDAE15
  • VNX6GSDAE15F
  • VNX6GSDAE15P
  • VNX6GSDAE15PF
• 2U 2.5” x 25
  • VNX6GSDAE25
  • VNX6GSDAE25F
  • VNX6GSDAE25P
  • VNX6GSDAE25PF

Max Drives: 1000
Drives Supported: 3.5 in. SAS, NL-SAS, Flash, and 2.5 in. 10 K SAS
Protocols Supported: Support for File (CIFS and NFS), Block (FC, iSCSI & FCoE) and Object

Storage Processor Enclosure (SPE):
A CPU module with an Intel Xeon 4-core 2.8-GHz processor with six Double Data Rate Three (DDR3) synchronous dynamic RAM (SDRAM) slots supporting 2-, 4-,and 8-GB SDRAM

Storage Processor I/O Supported:
The 6-Gb/s SAS I/O module is always located in slot 0 of SP A and SP B.
Five PCI Gen 2 x4 I/O module slots supporting a combination of the following five UltraFlex ™ I/O modules:

• Four-port 6-Gb/s SAS (slot 0 only)
• Four-port 8-Gb/s optical Fibre Channel (running at 2, 4, or 8-Gb/s)
• Two-port 10-Gb/s optical or active Twinax 3 (iSCSI protocol)
• Two-port 10-Gb/s optical or active Twinax 6 Fibre Channel over Ethernet (FCoE)
• Four-port 1-Gb/s copper iSCSI

Data Movers Enclosure (DME):
Each Data Mover consists of a CPU module with an Intel Xeon 4-core 2.8-GHz processor with six Double Data Rate Three (DDR3) synchronous dynamic RAM (SDRAM) slots supporting 2-, 4-, and 8-GB SDRAM

Five PCI Gen 2 x4 I/O module slots supporting a combination of the following four UltraFlex I/O modules:

• Four-port 8-Gb/s optical (running at 2, 4, or 8 Gb/s); in slot 0
• Two-port 10-Gb/s optical or active Twinax 6
• Four-port 1-Gb/s copper
• Two-port 1-Gb/s copper plus two-port 1 Gb/s optical

Any combination of these I/O modules is supported and must be the same for each Data Mover installed in the same VNX7500.

Control Station (CS):

One to two Control Stations. Each Control Station consists of the following features:

• Intel 2.0 GHz single-core Celeron processor
• 2 GB of RAM
• One 250-GB SATA hard drive
• Two rear-mounted USB ports and one front-mounted USB port
• Four RJ-45 10BASE-T/100BASE-TX/1000BASE-T network interface connectors(located on the rear panel)
• Two integrated serial ports, one for laptop/console redirection and one for the CallHome modem
• One DVD-ROM drive

Standby Power Supply (SPS)
Both the 1U and 2U SPS perform the same functions.

An additional SPS can be added for redundancy. Two SPSs provide higher availability and allow write caching, which prevents data loss during a power failure, to continue. A faulted or not fully charged SPS disables the write caching

Use a dual 2U SPS when a 4U DAE with Flash drives is used in a Vault drive configuration. Otherwise, the dual 1U SPS is used with the 2U or 3U DAE as the Vault drive.

Disk Array Enclosure (DAE)
Expansion of up to fifteen 4U DAEs and one 3U DAE (a maximum of 915 disk drives), sixty-six 3U DAEs (a maximum of 990 3.5-inch disk drives), or up to forty 2U DAEs (a maximum of 1000 2.5-inch disk drives) is possible.