Sun Oracle 7047503 LSI MegaRAID SAS 9261-8i RAID Controller Kit.

Sun Oracle 7047503 / LSI MegaRAID SAS 9261-8i Hardware Profile

1. Overview

The Sun Oracle 7047503 is an enterprise-grade 6Gb/s SAS and SATA RAID controller based on the industry-standard LSI MegaRAID SAS 9261-8i architecture. Configured in a Low-Profile (LP) form factor, this PCIe x8 host bus adapter is tailored for dense 1U and 2U Sun Fire / Oracle x86 and SPARC enterprise servers. It integrates an onboard PowerPC RAID-on-Chip (RoC) core and a dedicated Battery Backup Unit (BBU) to safeguard write-back cache data against sudden data-center power failure events.

2. Technical Specifications

 Core Processing & Bus Architecture

• RAID-on-Chip (RoC) Processor: LSI LSISAS2108 Dual-Core PowerPC processor running at 800 MHz

• Host Bus Interface: PCI Express 2.0 x8 (Backward compatible with PCIe 1.x slots)

• Form Factor: Low-Profile MD2 Compliant (Includes low-profile mounting bracket for dense rack systems)

 Cache Memory & Power Protection

• Onboard Cache: 512MB 800MHz DDR2 SDRAM data cache

• Cache Protection Module: Includes a plug-in Battery Backup Unit (BBU / LSIiBBU07 or compatible Sun proprietary equivalent)

• Data Retention Window: Up to 72 hours of unwritten cache data protection during unexpected system power loss

 Storage Connectivity & Throughput

• Data Transfer Rates: Up to 6Gb/s per port (SAS 2.0 and SATA III compliant; backward compatible with 3Gb/s legacy drives)

• Internal Ports: 8 internal physical ports

• Physical Connectors: 2x Mini-SAS internal connectors (SFF-8087 layout, oriented horizontally/rear-facing to accommodate low-profile chassis clearances)

• Device Support Capacity:

  • Directly connects up to 8 SAS or SATA hard drives/SSDs

  • Scalable up to 128 physical storage devices utilizing SAS expander backplanes

 RAID Features & Data Management

• Supported RAID Levels: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60

• Storage Optimization Technology: LSI MegaRAID Cache智能 (SafeStore encryption support, online capacity expansion, online RAID level migration, auto-resume during array rebuilds)

• Enclosure Management Support:

  • SES-2 (SCSI Enclosure Services)

  • SGPIO (Serial General Purpose Input/Output)

 System Compatibility & Management Firmware

• Host Platform OS Support: Oracle Solaris (SPARC and x86), Oracle Linux, Red Hat Enterprise Linux (RHEL), SUSE Linux Enterprise Server (SLES), VMware ESXi, and Microsoft Windows Server.

• Array Management Suite: Fully compatible with MegaRAID Storage Manager (MSM), WebBIOS configuration utility, and Oracle system CLI deployment infrastructure.

3. Part Number Cross-Reference Matrix

Oracle Option / FRU Part Number	Original LSI Base Model	Assembly Included	Form Factor Grouping
7047503 (SG-XPCIE8SAS-E6-I)	MegaRAID SAS 9261-8i	9261-8i Card + Cache BBU + LP Bracket	Low Profile (LP) MD2

4. Key Deployment Notes for Enterprise IT Refurbishers

• Orientation Advantage: The 9261-8i variant features right-angle (rear-facing) SFF-8087 connectors rather than the top-facing ports found on standard 9260-8i designs. This specific profile prevents internal SAS cable strain against low-clearance 1U chassis lids.

• BBU Reconditioning: When redeploying second-hand stock, the attached lithium-ion battery backup unit may register a “relative state of charge” fault or enter a refresh cycle during initial system installation. Allow the server to run continuously for 4 to 24 hours to complete the automatic calibration cycle.

• Thermal Notice: This card relies entirely on continuous chassis fan airflow passing through its passive aluminum pin-fin heatsink. Do not test or run the controller continuously on open desktop benches without an active external fan source to avoid thermal tripping of the LSISAS2108 RoC chip.