Hitachi VSP E1090 Upgrade Guide
Maximize the performance and lifespan of your Hitachi VSP E1090 (E). Every upgrade option below is verified compatible.
Verified Specifications
| Processor Options | Dual active/active controllers, 4U controller tray; 8.4M IOPS, 52 GB/s bandwidth |
| Memory Configuration | Max cache 1,024 GiB |
| Drive Configurations | Max 864 drives incl. spares: 96x 2.5in NVMe SSD or 864x 2.5in SAS SSD (E1090H hybrid: 960 drives, 768 SAS SSD + 960 LFF SAS HDD options); drive options 1.9/3.8/7.6/15/30TB; max raw internal 23PB (30TB SAS SSD), external 287PB; expansion: 4x 2U 24-SFF NVMe trays or 36x 2U 24-SFF SAS SSD trays; back-end 64x NVMe PCIe or 64x 12Gb SAS links |
| Power Supply Options | Redundant power supplies per controller tray (166 lbs/75 kg 4U chassis) |
| RAID Controllers | RAID-6 (6D+2P, 12D+2P, 14D+2P), RAID-5 (3D+1P, 4D+1P, 6D+1P, 7D+1P), RAID-1 (2D+2D, 4D+4D) |
| Networking Options | Max host ports 80x FC-NVMe, 80x FC, 40x iSCSI; interfaces FC-NVMe 32Gb, FC 16/32Gb, iSCSI 10/25Gb; optional 2U expansion host I/O tray (max 1); fibre bandwidth to host 256,000 MB/s |
| Specification Source | Hitachi official documentation (verified 2026-07-02) |
Frequently Asked Questions
Upgrade Power & Cooling
This category provides verified compatible upgrade paths. ICD engineers validate every part for compatibility with your specific server model and workload requirements.
3276081-A Hds AMS2000 Dae Power Supply
3276255-A Hds AMS2500 Power Supply Unit
3276374-A Hds AMS2000 Fan Assembly
3285122-A Hds Hus 110/130 AC Power Supply
3285131-A Hds Hus Fan Module
3285165-A Hds Hus Power Unit for Cbl
Upgrade Storage
Moving from spinning disk to SSD or NVMe storage provides the largest single performance improvement — often 10-50x faster I/O. Consider NVMe for boot drives and high-IOPS workloads.
0B22187 Hitachi 146GB 15K SAS Hard Drive Sun 390 0371
0B28473 Hitachi 1 2TB 10K SAS 2 5IN SFF Hard Drive W Bracket
3276138-A Hitachi Data Systems AMS 146 Gb 15K RPM SAS Hdd, 3
3276139-E Hitachi Data Systems AMS 3 Tb 7
3282279-A Hitachi - AMS 2TB 7
3282390 Hitachi E Hard Drive 1 2TB 10K SAS 2 5IN W Bracket
Upgrade Controllers
Upgrading your RAID controller enables faster disk I/O, larger cache, and support for newer drive technologies. Essential when adding NVMe or SAS-4 drives.
3276159-A Hds AMS2000 Dae Control Unit
3282247-A Hds AMS2300 Controller Unit Rkem
3282248-A Hds AMS2100 Controller 8GB FC
3282249-A Hds AMS2500 Controller 8GB
3285140-A Hds Hus 130 Drive Box Frame SFF
3285153-A Hds Hus FC 8G Host I/O Module
Upgrade Accessories
Rails, bezels, cable management arms, and drive caddies keep your server organized and serviceable. Replacing worn accessories extends the physical life of your equipment.
3285126 Hitachi a HUS150 8GB Cache Memory
3285140 Hitachi a 24 Slot SFF Disk Expansion Array
3285165 Hitachi a Power Unit HUS150
3285167 Hitachi a Back Up Battery Bacbl
3285168 Hitachi a Df F850 Ctll HUS150 Controller
3285196 Hitachi a Hus I O Module Enc 2 Port Df F850 Db
Upgrade Cable
This category provides verified compatible upgrade paths. ICD engineers validate every part for compatibility with your specific server model and workload requirements.
3290633-A VSP 5M SAS Interface Cable
DKC-F710I-BUC.P VSP Dev Cable Controller to 1ST Drive Chassis
DKC-F810I-CBL-FC Hitachi VSP Fibre Channel Cable for VSP G/F Series
DKC-F810I-CBL-PWR Hitachi VSP Power Cable for VSP G/F Series Controller
DKC-F810I-CBL-SAS Hitachi VSP SAS Backend Cable for VSP G/F Series
Upgrade Memory
Memory is the most impactful upgrade for virtualization and database workloads. Upgrading from 64GB to 128GB or 256GB can dramatically improve VM density and application response times.
3276125-J Hds AMS 4GB Cache Memory Module
3285126-A Hds Hus 8GB Cache Memory
3289043-A Hitachi VSP G400/G600 128GB Cache Flash Memory Module DW-F800-BM20
5541840-A VSP Cpc Cache Memory Adapter
5541842-A VSP 16GB Cache Memory Module
5541843-A VSP 8GB Cache Memory Module
More Hitachi VSP E1090 Resources
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