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ThinkServer 8708EM2 RAID Adapter - Overview

Features and specifications

The eight-port MegaRAID SAS 8708EM2 (67Y2639) eliminates the need to choose between cost and performance by supporting both high-capacity SATA drives and high-performance SAS drives. This adapter is ideal for internal SAS/SATA storage systems using up to 32 SAS or SATA hard drives. Featuring the LSISAS1078 ROC, a PCI Express host interface and 667MHz DDRII, the MegaRAID SAS 8708EM2 is a high-performance RAID adapter with advanced data protection capabilities for low-cost server and nearline applications.

Performance specifications:

  • Eight internal SAS/SATA ports
  • Two Mini-SAS SFF-8087 x4 connectors
  • 3Gb/s throughput per port
  • LSISAS1078 RAID on Chip (ROC)
    • 500MHz power-PC
    • Hardware RAID 5 & 6 parity engines
  • MD2 Low profile (6.6" X 2.536")
  • x8 PCI Express host interface
  • 256MB DDRII Cache (667MHz)
  • Optional battery backup unit
  • Connect up to 32 SAS and/or SATA devices
  • RAID levels 0, 1, 5 and 6 and RAID spans 10, 50 and 60
  • Auto-resume on rebuild and Auto-resume on reconstruction
  • Online Capacity Expansion (OCE) and Online RAID Level Migration (RLM)
  • Global and dedicated hot spare with revertible hot spare support
    • Automatic rebuild
    • Enclosure affinity
    • Emergency SATA hot spare for SAS arrays
  • Single controller multi-pathing (failover) and I/O load balancing

Physical specifications:

  • Approximate height: 64.41 mm (2.536 in)
  • Approximate width: 18.71 mm (0.74 in)
  • Approximate length: 167.64 mm (6.6 in)
  • Approximate weight: 105g (0.23lb)

Operating environment:

  • Temperature: 10 deg to 35 deg (C) (50 deg to 95 deg (F))
  • Relative humidity: 10% to 90% (non-condensing)

Warranty

1 year – Customer Replaceable Unit (CRU)

  • Announce date: 01 Mar 2011 (see country listing)
  • Availability date: 15 Mar 2011 (see country listing)

Hardware compatibility
DescriptionMachine typeModels
ThinkServer RD2304010, 4011All
ThinkServer RD2401045, 1046All


Software requirements
  • VMWare 4.x
  • Windows Server 2003
  • Windows Server 2008
  • Windows Server 2008 R2
  • RHEL 5 U3
  • RHEL 5 U4
  • SLES 10 SP2
  • SLES 10 SP3
  • SLES 11

Packaging
  • ThinkServer 8708EM2 RAID Adapter (256MB)
  • Publications
  • Low profile bracket
  • 400mm MiniSAS-MiniSAS Cable
  • 630mm MiniSAS-MiniSAS Cable x2

Agency approvals
  • UL
  • CE EMC
  • C-tick
  • GS
  • cUL
  • CB
  • FCC

Additional product information
Service parts - Parts listing for your product

  • Alias ID: MIGR-76775
  • Document ID: PD008433
  • Last Updated :6/17/2014
  • (c) 2014 Lenovo