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Fujitsu S26361-F5243-L200 TFM Module



The RAID concept (Redundant Array of Independent Disks) refers to several independent hard disks which form a large logical drive when switched together. Redundancy information is calculated from several data blocks (except for RAID 0) and saved distributed to the individual hard disks. Your operating system no longer accesses the individual hard disks, but the array. The actual objective of the RAID concept is to increase availability and prevent downtimes in the event of a hard disk failure. However, the theoretical security of the RAID concept is only as good as the RAID controller used. Benefit from the Fujitsu RAID controllers where technology, experience and practical implementation all ensure the security that your company needs in the event of an emergency.

PRAID EP400i / EP420i

The Fujitsu RAID ControllerPRAID EP400i with 8 ports sets new speed and data security standards for internal storage drives. The RAID stack is based on the LSI MegaRAID and offers high data throughput, a comprehensive fault tolerance function and user-friendly management options. Moreover, the Controller management is integrated seamlessly into the Fujitsu server management concept. All controller functions are supported by the Fujitsu ServerView RAID Manager. The PRAID EP400i is designed for backward compatibility with 3Gbit/s SAS as well as with 6Gbit/s and 3Gbit/s SATA hard drives. Regardless of the drive speed, it delivers significant performance improvements in both read and write applications. Due to the support of 64-bit addressing, a robust set of RAID features and demanding error tolerance functions the controller provides high RAID performance and data availability. Powerful online management service programs (Fujitsu ServerView RAID Manager), which are simple to operate and quick to install, provide the administrator with unparalleled flexibility and access to the arrays. The RAID controller supports all of the important RAID levels including RAID 6 and 60. The optional flash battery backup (FBU) combined with TFM module ensures the integrity of the data stored in the cache on the RAID controller in case of a power outage. In this event, the data will be copied to a non-volatile flash memory (TFM). The FBU provides a low-priced alternative to an uninterruptible power supply (UPS) and, when compared to battery backup up units (BBU), enables a long-term, secure store of data and better serviceability. Always select FBU and TFM module in combination. The Advanced Software Options in combination with Solid State Disks in front of HDD volumes can create high-capacity,high-performance controller cache pools, depending on the load profile. A free of charge test version is available at PRIMERGY-PM. Link: https://docs.ts.fujitsu.com/ dl.aspx?id=c816a64f-8b6d-47df-ba31- 836874f08c07

Main Features

  • 12Gbit/s SAS ports PCI Express 3.0 x8
  • LSISAS3108 12Gbit/s RAID-on-Chip
  • 1GB / 2GB 1333MHz DDRIII cache memory
  • Optional Flash Backup Unit (FBU
  • Optional SafeStore for PRAID EP420i
  • User Management Options
  • RAID Advanced Software Options LSI CacheCade. Fast Path is supported free of charge by controller firmware.


  • Connect up to 240 HDDs and SSDs
  • RAID levels 0, 1, 5 and 6 for more data security
  • RAID spans 10, 50 and 60 for more data security
  • Ensures the integrity in case of power outage, Long-term, secure store of data and better serviceability compared to BBU
  • Safe data encryption and data safety for harddisks in case of removal
  • Seamless merging of the RAID management into system management
  • Create high performance controller cache pools.


Controller Silicon

RoC (RAID on Chip) LSI SAS3108

Controller type

RAID 5/6 Ctrl.

Operating system pre-installed

Information to released operating systems can be found in the server datasheets. Details can be found in the

released drivers list on the support portal.

Released drivers list link


Number of ports

16 ports int.

8 ports int.

Connector internal

4x SFF8643 (Mini-SAS HD)

2x SFF8643 (Mini-SAS HD)

Data transfer rate up to

12 Gbit/s

Bus type

PCIe 3.0

Bus width


RAID Management

ServerView RAID Manager

StorCLI (command-line interface)

BIOS Configuration Utility

Key RAID Data Protection Feature

- RAID levels 0, 1, 5 and 6

- RAID spans 10, 50 and 60

- Maximum number of spans is 8

- Online Capacity Expansion (OCE)

- Online RAID level Migration (RLM)

- Auto resume after loss of system power during array rebuild or reconstruction (RLM)

- Fast initialization for quick array setup

- Single controller multipathing (failover)

- Load Balancing

- Configurable stripe size up to 1MB

- Fast initialisation for quick array setup

- Check consistency for background data integrity - Make Data Consistent (MDC)

- Patrol read for media scanning and repairing

- Up to 64 logical drives per controller

- S.M.A.R.T support

- Global and dedicated Hot Spare with Revertible Hot Spare support

- Automatic rebuild

- Enclosure affinity

- Enclosure management

- SES (inband)

- SGPIO (outband)

RAID level

0, 1, 10, 5, 50, 6, 60

RAID cache backup unit

Optional FBU

RAID controller notes

based on LSI SAS3108

Interface technology



Product Name


Height of bracket

Full Height / Low Profile

RAID controller cache size

2 GB

Number of Connectors


No additional files, specification sheets, guides or documentation found for product.

Warranty: 12 Month Return To Base

Full manufacturers warranty details are available at the manufacturers (Fujitsu) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

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These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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