PCIe3 x8 cache SAS RAID Internal Adapter 6 Gb (FC EJ1G and FC EL67; CCIN 57DC)

Learn about the specifications and operating system requirements for the PCIe3 x8 cache SAS RAID internal adapter 6 Gb (FC EJ1G and FC EL67) that is integrated with the expanded function Random Array of Independent Disks (RAID) feature composite storage backplane.

Overview

The expanded function PCIe3 x8 cache SAS RAID internal adapter 6 Gb is an internal PCI Express generation 3 (PCIe3), serial-attached SCSI (SAS) RAID adapter. The adapter is part of a composite feature of the storage backplane (FC EJ1G and FC EL67) and contains the SAS RAID controller.

The high-performance internal adapter is preinstalled in the dedicated internal PCIe3 x8 slot P1-C49 and its back power module in P1-C49-E1. The composite storage feature (FC EJ1G and FC EL67) provides the following features:
  • A storage backplane (CCIN 2D36) that provides slots for eight 2.5 inches small form-factor (SFF) hard disk drives (HDDs) or solid-state drives (SDDs).
  • A PCIe3 cache SAS RAID internal adapter (CCIN 57DC) is installed in the slot P1-C49.
  • The backup power module card is installed in slot P1-C49-E1.
  • One mini-SAS HD cable that attaches to the high-performance storage backplane.
  • A mini-SAS HD cable with an external SAS port that is installed in the system rear bulkhead in the slot P1-C10.

The PCIe3 x8 cache SAS RAID internal adapter 6 Gb is a single stand-alone adapter that has a data read/write speed of 6 Gb/s and a real write cache of 1.8 GB. With a 4:1 cache compression, this high-performance adapter provides an increased cache of 7.2 GB and increases the storage system performance. With this single cache adapter configuration, there is only one copy of the write cache data. The write cache contents are protected against power loss with flash memory and super capacitors that remove the need for cache battery. The super capacitors are part of the backup power module card which is installed in slot P1-C49-E1.

One mini-SAS HD cable connects the PCIe3 x8 cache SAS RAID internal adapter 6 Gb to the SAS port on the internal storage backplane. For more information, see Front SAS cable.The expanded function internal adapter supports both types of SFF drives (HDDs and SSDs). The supported RAID configurations include: RAID 0, 5, 6, 10, 5T2, 6T2, and 10T2 depending on the operating system support. For more information, see SAS RAID controllers for Linux.

This internal adapter also provides a mini-SAS HD connector that attaches to a mini-SAS HD cable and provides an external SAS port on the other end. The external SAS port is installed in slot P1-C10. The external SAS port is used to attach a FC ESLS, ESLL, or migrated 5887 drive enclosure by way of a mini-SAS HD YO cable and must not exceed the maximum supported length of 3 meters. Only one external SAS drive enclosure is supported and must be in zone mode 1. For more information, see Rear SAS cable.

Figure 1. PCIe3 x8 cache SAS RAID internal adapter 6 Gb
PCIe3 x8 cache SAS RAID internal adapter 6 Gb

Specifications

Item
Description
Adapter CCIN number
57DC
Adapter FRU number
01JC780 (includes the backup power module card)
I/O bus architecture
PCIe3 x8
Slot requirement
Internal PCIe3 slot with x16 connector and x8 bus signaling
Adapter is installed in slot P1-C49
Backup power module is installed in slot P1-49-E1
Voltage
12 V
Cables
One mini-SAS HD Y cable (part number: 01GY461) connects the two storage backplane connectors (J1 and J2) to the P1 connector on the PCIe3 x8 cache SAS RAID internal adapter 6 Gb in slot P1-C49.
One SAS cable (part number: 01ML060) with mini-SAS connectors and an external SAS port is attached to rear P2 connector of the PCIe3 x8 cache SAS RAID internal adapter 6 Gb.

Important requirements for adapter installation

An automatic sector conversion takes place for use with the new adapter when migrating existing SAS disk enclosures and devices from existing previous PCIe SAS adapters to PCIe3 SAS adapters. For more information about the migration procedures, see Upgrading a SAS RAID storage adapter.

Operating system or partition requirements

If you are installing a new feature, ensure that you have the software that is required to support the new feature and you must determine any prerequisites that must be met for this feature and the attached devices. For information about operating system and partition requirements, see one of the following topics: