IBM 8412-EAD Manual
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Power Systems
SAS subsystem for the 8412-EAD,
9117-MMB, 9117-MMC, 9117-MMD,
9179-MHB, 9179-MHC, or 9179-MHD

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Summary of Contents for IBM 8412-EAD

  • Page 1 Power Systems SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD...
  • Page 3 Power Systems SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD...
  • Page 4 Note Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on page 17, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823. ™...
  • Page 5: Table Of Contents

    Safety notices ....... . . v SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD.
  • Page 6 SAS subsystem...
  • Page 7: Safety Notices

    You should also refer to the safety information documentation any time you do not clearly understand any safety information in the U.S. English publications. Replacement or additional copies of safety information documentation can be obtained by calling the IBM Hotline at 1-800-300-8751.
  • Page 8 Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid a shock hazard: v Connect power to this unit only with the IBM provided power cord. Do not use the IBM provided power cord for any other product.
  • Page 9 Observe the following precautions when working on or around your IT rack system: v Heavy equipment–personal injury or equipment damage might result if mishandled. v Always lower the leveling pads on the rack cabinet. v Always install stabilizer brackets on the rack cabinet. v To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices in the bottom of the rack cabinet.
  • Page 10 CAUTION: Removing components from the upper positions in the rack cabinet improves rack stability during relocation. Follow these general guidelines whenever you relocate a populated rack cabinet within a room or building: v Reduce the weight of the rack cabinet by removing equipment starting at the top of the rack cabinet.
  • Page 11 (L003) All lasers are certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for class 1 laser products. Outside the U.S., they are certified to be in compliance with IEC 60825 as a class 1 laser product.
  • Page 12 Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local regulations. In the United States, IBM has a process for the collection of this battery. For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)
  • Page 13: Sas Subsystem For The 8412-Ead, 9117-Mmb, 9117-Mmc, 9117-Mmd, 9179-Mhb, 9179-Mhc, Or 9179-Mhd

    SAS subsystem including cables, enclosures, and expanders. SAS subsystem overview This overview of the SAS subsystem provides the features and locations for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system. Use this information in conjunction with your specific system unit and operating system documentation.
  • Page 14 Figure 1. SAS subsystem overview Table 1. SAS subsystem parts Physical Diagram Customer card identification location location Part name Feature code (FC) numbers (CCINs) codes 175 MB Cache RAID – 5662 Card CCIN 2BC2 P2-C9-C1 Dual IOA enablement Note: If FC 5662 is installed, the card embedded SAS adapters report CCIN 57CF and operate as dual...
  • Page 15 Table 1. SAS subsystem parts (continued) Physical Diagram Customer card identification location location Part name Feature code (FC) numbers (CCINs) codes Optional internal SAS 1815 or 1819 P2-T2 cables: Notes: v Three-way split disk or v 1815 when FC 5662 is media backplane not installed configuration (cable FC...
  • Page 16: Sas Storage Configurations

    Serial-attached SCSI cable planning SAS storage configurations Several SAS subsystem configurations are supported on the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD systems. The configuration you use depends on the combination of SAS features that you have installed on your system.
  • Page 17: Sas Subsystem Configuration That Uses A Two-Way Split Backplane

    “SAS subsystem service considerations” on page 12 There are several considerations to review before servicing features within the SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system. “Service considerations for the internal SAS cable for a three-way split backplane” on page 12 To prevent data loss, follow proper procedures before replacing the internal SAS cable for a three-way split backplane.
  • Page 18: Sas Subsystem Configuration That Uses A Three-Way Split Backplane

    v Each SAS adapter can recognize only three of the disk drives and cannot function in dual storage I/O adapter (IOA) or high availability (HA) RAID mode. One SAS adapter connects to D1, D2, and D3. The other SAS adapter connects to D4, D5, and D6. v The SAS adapters can be assigned to separate partitions for boot devices.
  • Page 19 v A three-way split backplane uses three sets of two drives and cannot function in dual storage I/O adapter (IOA) or high availability (HA) RAID mode. One SAS adapter connects to D1 and D4. The other SAS adapter connects to D2 and D5. An external SAS adapter connects to D3 and D6. v The SAS adapters can be assigned to separate partitions for boot devices.
  • Page 20: Sas Subsystem Configuration That Uses A Dual Storage Ioa With Internal Drives

    “SAS subsystem service considerations” on page 12 There are several considerations to review before servicing features within the SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system. “Service considerations for the internal SAS cable for a three-way split backplane” on page 12 To prevent data loss, follow proper procedures before replacing the internal SAS cable for a three-way split backplane.
  • Page 21 This configuration increases availability by using dual storage IOA or high availability (HA) to connect multiple adapters to a common set of internal disk drives. It also increases the performance of RAID arrays. The following rules apply to this configuration: v This configuration uses the 175 MB Cache RAID –...
  • Page 22: Sas Subsystem Configuration That Uses A Dual Storage Ioa With External Drives

    There are several considerations to review before servicing features within the SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system. “Service considerations for the 175 MB cache RAID - dual IOA enablement card” on page 13 To prevent data loss, follow proper procedures before replacing the 175 MB cache RAID –...
  • Page 23 Figure 7. Physical connection to attach external disk enclosures The following table lists the configuration details. Table 6. Configuration details Embedded SAS adapters Configuration details Two embedded SAS adapters v RAID mode is required for this configuration. v SAS adapters connect to all six disk drives and to any drives that are attached by the external cable.
  • Page 24: Sas Subsystem Service Considerations

    There are several considerations to review before servicing features within the SAS subsystem for the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system. “Service considerations for the 175 MB cache RAID - dual IOA enablement card” on page 13 To prevent data loss, follow proper procedures before replacing the 175 MB cache RAID –...
  • Page 25: Service Considerations For The 175 Mb Cache Raid - Dual Ioa Enablement Card

    SAS cable for a three-way split backplane (FC 1815) to maintain system availability and to prevent possible data loss. Related information: Installing the external SAS port on a 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD Service considerations for the 175 MB cache RAID - dual IOA enablement card To prevent data loss, follow proper procedures before replacing the 175 MB cache RAID –...
  • Page 26: Service Considerations For The Cache Battery Pack

    Related information: Removing the 175 MB Cache RAID – Dual IOA enablement card from the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD Installing the 175 MB Cache RAID – Dual IOA enablement card in the 8412-EAD, 9117-MMB,...
  • Page 27: Problem Determination And Recovery

    9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system. Attention: To maintain system availability and to prevent possible data loss, contact your next level of support for any service that is related to the SAS storage subsystem on the 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD system.
  • Page 28 SAS subsystem...
  • Page 29: Notices

    All statements regarding the manufacturer's future direction or intent are subject to change or withdrawal without notice, and represent goals and objectives only. The manufacturer's prices shown are the manufacturer's suggested retail prices, are current and are subject to change without notice. Dealer prices may vary. © Copyright IBM Corp. 2010, 2013...
  • Page 30: Trademarks

    IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corp., registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the web at Copyright and trademark information at www.ibm.com/legal/copytrade.shtml.
  • Page 31 Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits. IBM is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment.
  • Page 32 The following is a summary of the EMI Taiwan statement above. Warning: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user will be required to take adequate measures. IBM Taiwan Contact Information: SAS subsystem...
  • Page 33 Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der IBM empfohlene Kabel angeschlossen werden. IBM übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung von IBM verändert bzw.
  • Page 34: Class B Notices

    Consult an IBM-authorized dealer or service representative for help. Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits. Proper cables and connectors are available from IBM-authorized dealers. IBM is not responsible for SAS subsystem...
  • Page 35 This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility. IBM cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the fitting of non-IBM option cards.
  • Page 36 Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der IBM empfohlene Kabel angeschlossen werden. IBM übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung von IBM verändert bzw.
  • Page 37: Terms And Conditions

    Permissions for the use of these publications are granted subject to the following terms and conditions. Applicability: These terms and conditions are in addition to any terms of use for the IBM website. Personal Use: You may reproduce these publications for your personal, noncommercial use provided that all proprietary notices are preserved.
  • Page 38 SAS subsystem...
  • Page 40 Printed in USA...

This manual is also suitable for:

9117-mmb9117-mmc9117-mmd9179-mhb9179-mhc9179-mhd

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