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Hitachi Universal Storage Platform V Reference Manual

Hitachi universal storage platform user and reference guide
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Hitachi Universal Storage Platform V
Hitachi Universal Storage Platform VM
User and Reference Guide
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Document Organization
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Getting Help
Contents
MK-96RD635-12

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  • Page 1 Hitachi Universal Storage Platform V Hitachi Universal Storage Platform VM User and Reference Guide INKS Document Organization Product Version Getting Help Contents MK-96RD635-12...
  • Page 2 VSE/ESA, z/OS, zSeries, z/VM, and zVSE are registered trademarks or trademarks of International Business Machines Corporation. All other trademarks, service marks, and company names in this document are properties of their respective owners. Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 3: Table Of Contents

    Specifications for the Universal Storage Platform V ...1-4 Specifications for the Universal Storage Platform VM ...1-6 Software Products ...1-8 Architecture and Components... 2-1 Hardware Architecture ...2-2 Multiple Data and Control Paths ...2-3 Storage Clusters ...2-4 Hitachi Universal Storage Platform V/VM User and Reference Guide Contents Contents...
  • Page 4 Mainframe Operating System Support... 3-35 Mainframe Configuration ... 3-36 Open-Systems Operations ... 3-37 Open-Systems Compatibility and Functionality... 3-37 Open-Systems Host Platform Support ... 3-38 Open-Systems Configuration... 3-39 Battery Backup Operations ... 3-40 Hitachi Universal Storage Platform V/VM User and Reference Guide Contents...
  • Page 5 Troubleshooting ... 4-1 General Troubleshooting...4-2 Service Information Messages ...4-3 Calling the Hitachi Data Systems Support Center ...4-4 Units and Unit Conversions... A-1 Acronyms and Abbreviations Index Hitachi Universal Storage Platform V/VM User and Reference Guide Contents...
  • Page 6 Contents Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 7: Preface

    Convention for Storage Capacity Values Getting Help Comments Notice: The use of the Hitachi Universal Storage Platform V and VM storage systems and all other Hitachi Data Systems products is governed by the terms of your agreement(s) with Hitachi Data Systems.

  • Page 8: Safety And Environmental Notices

    WARNUNG: Dies ist ein Produkt der Klasse A. In nichtgewerblichen Umgebungen können von dem Gerät Funkstörungen ausgehen, zu deren Beseitigung vom Benutzer geeignete Maßnahmen zu ergreifen sind. viii Hitachi Universal Storage Platform V/VM User and Reference Guide Preface...

  • Page 9: Intended Audience

    The user has a background in data processing and understands RAID storage systems and their basic functions. • The user is familiar with the host systems supported by the Hitachi Universal Storage Platform V/VM. • The user is familiar with the equipment used to connect RAID storage systems to the supported host systems.

  • Page 10: Changes In This Revision

    Description Provides an overview of the Universal Storage Platform V/VM, including features, benefits, general function, and connectivity descriptions. Describes the USP V/VM architecture and components. Discusses the functional and operational capabilities of the Universal Storage Platform V/VM.

  • Page 11: Referenced Documents

    Document Conventions The terms “Universal Storage Platform V” and “Universal Storage Platform VM” refer to all models of the Hitachi Universal Storage Platform V and VM storage systems, unless otherwise noted. This document uses the following icons to draw attention to information:...

  • Page 12: Convention For Storage Capacity Values

    1 PB = 1,024 TB or 1,024 1 block = 512 bytes Getting Help If you need to call the Hitachi Data Systems Support Center, make sure to provide as much information about the problem as possible, including: • The circumstances surrounding the error or failure.

  • Page 13: Comments

    Please send us your comments on this document: doc.comments@hds.com. Include the document title, number, and revision, and refer to specific section(s) and paragraph(s) whenever possible. Thank you! (All comments become the property of Hitachi Data Systems.) Preface xiii Hitachi Universal Storage Platform V/VM User and Reference Guide...
  • Page 14 Preface Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 15: Product Overview

    This chapter provides an overview of the Universal Storage Platform V and VM storage systems. Universal Storage Platform V Family New and Improved Capabilities Specifications at a Glance Software Products Product Overview Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 16: Universal Storage Platform V Family

    IT with business objectives. The Universal Storage Platform V family is an integral part of the Services Oriented Storage Solutions architecture from Hitachi Data Systems. These...

  • Page 17: New And Improved Capabilities

    New and Improved Capabilities The Hitachi Universal Storage Platform V and VM storage systems offer the following new and improved capabilities as compared with the TagmaStore Universal Storage Platform and Network Storage Controller: • NEW! Hitachi Data-At-Rest Encryption The new Hitachi data-at-rest encryption feature provides hardware-based strong encryption (AES-256) that is compatible with both open and mainframe systems.

  • Page 18: Specifications At A Glance

    Capacity (fibre channel) Capacity (SATA) Capacity (flash drive) Number of drives (minimum–maximum) Spare drives per system (minimum–maximum) Hitachi Universal Storage Platform V/VM User and Reference Guide 106 GB/sec 4.5 million 4 GB, 8 GB, or 16 GB 512 GB 4 GB...
  • Page 19 TPF; Fujitsu MSP; Red Hat Linux for IBM S/390 Open Systems: Sun Solaris, HP-UX, IBM AIX and SuSE Linux, VMWare ESX, HP Tru64, SGI IRIX, HP OpenVMS Hitachi Universal Storage Platform V/VM User and Reference Guide 82 TB 1,134.5 TB 986.0 TB...

  • Page 20: Specifications For The Universal Storage Platform Vm

    Disk Drives and Flash Drives Capacity (fibre channel) Capacity (SATA) Capacity (flash drive) Number (minimum–maximum) Spare drives per system (minimum–maximum) Hitachi Universal Storage Platform V/VM User and Reference Guide 13.3 GB/sec 1.2 million 4 GB, 8 GB, or 16 GB 128 GB 4 GB...
  • Page 21 TPF; Fujitsu MSP; Red Hat Linux for IBM S/390 Open Systems: Sun Solaris, HP-UX, IBM AIX and SuSE Linux, VMWare ESX, HP Tru64, HP OpenVMS Hitachi Universal Storage Platform V/VM User and Reference Guide 0 GB (146 GB) 236.3 TB 193.0 TB...

  • Page 22: Software Products

    Software Products The Universal Storage Platform V and VM provide many advanced features and functions that increase data accessibility and deliver enterprise-wide coverage of online data copy/relocation, data access/protection, and storage resource management. Hitachi Data Systems’ software products and solutions provide a...
  • Page 23 Hitachi SNMP Agent Provides support for SNMP monitoring and management. Includes Hitachi specific MIBs and enables SNMP-based reporting on status and alerts. SNMP agent on the SVP gathers usage and error information and transfers the information to the SNMP manager on the host.
  • Page 24 Enables users to overwrite data on logical volumes with dummy data. Hitachi Multiplatform Backup Allows users to perform mainframe-based volume-level backup and Restore restore operations on the open-system data stored on the USP V/VM. 1-10 Hitachi Universal Storage Platform V/VM User and Reference Guide Description Product Overview Documents MK-96RD606 MK-96RD631...
  • Page 25 Hitachi Code Converter Hitachi Copy Enables TPF users to control DASD copy functions on Hitachi Manager for TPF RAID storage systems from TPF through an interface that is simple to install and use. Hitachi Cache...
  • Page 26 Management (DLM). Helps improve the efficiency of the entire data storage system by enabling quick and easy data migration according to the user’s environment and requirements. 1-12 Hitachi Universal Storage Platform V/VM User and Reference Guide Description Product Overview Documents Server Installation: MK-98HC150 Server Config &...

  • Page 27: Architecture And Components

    Architecture and Components This chapter describes the architecture and components of the Hitachi Universal Storage Platform V and VM storage systems: Hardware Architecture Hardware Components Control Panel and Emergency Power-Off Switch Intermix Configurations Architecture and Components Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 28: Hardware Architecture

    AC-Box AC-DC AC-Box Supply Power Supply Battery Battery Figure 2-1 Hitachi Universal Storage Platform V/VM User and Reference Guide Figure 2-2 illustrates the hardware architecture of Controller SM Path Cache Path CACHE Drive Path (max. 64 paths) Disk Unit Max. 1,152 data drives per storage system...

  • Page 29: Multiple Data And Control Paths

    Supply Figure 2-2 Multiple Data and Control Paths The Universal Storage Platform V/VM employs the proven Hi-Star™ crossbar switch architecture, which uses multiple point-to-point data and command paths to provide redundancy and improve performance. Each data and command path is independent. The individual paths between the front-end or back-end directors and cache are steered by high-speed cache switch cards (CSWs).

  • Page 30: Storage Clusters

    The redundancy and backup features of the USP V/VM eliminate all active single points of failure, no matter how unlikely, to provide an additional level of reliability and data availability. Hitachi Universal Storage Platform V/VM User and Reference Guide Architecture and Components...

  • Page 31: Hardware Components

    Cache Memory • Front-End Directors and Host Channels • Back-End Directors and Array Domains • Disk Drives and Flash Drives • Service Processor • Power Supplies • Batteries Hitachi Universal Storage Platform V/VM User and Reference Guide Architecture and Components...

  • Page 32: Shared Memory

    36 hours by battery backup. The Universal Storage Platform V can be configured with up to 32 GB of shared memory, and the Universal Storage Platform VM can be configured with up to 16 GB of shared memory.

  • Page 33: Front-End Directors And Host Channels

    Front-End Directors and Host Channels The Universal Storage Platform V and VM support all-mainframe, all-open- system, and multiplatform configurations. The front-end directors (FEDs) process the channel commands from the hosts and manage host access to cache. In the mainframe environment, the front-end directors perform CKD- to-FBA and FBA-to-CKD conversion for the data in cache.
  • Page 34 CHL image. If one CU includes 256 devices, the maximum number of CUs per CHL image is limited to 4. Hitachi Universal Storage Platform V/VM User and Reference Guide USP V: 1 – 8, 14 when FEDs are installed in BED slots USP VM: 1 –...

  • Page 35: Back-End Directors And Array Domains

    Back-end interface transfer rate (burst rate) Maximum concurrent back-end operations per BED feature Maximum concurrent back-end operations per storage system Back-end (data) bandwidth Hitachi Universal Storage Platform V/VM User and Reference Guide Parameter Architecture and Components Specifications USP V: 1 – 8...
  • Page 36 *1: A RAID group (3D+1P/2D+2D) consists of fibr e port number 0, 2, 4, and 6, or 1, 3, 5 and 7. Figure 2-3 2-10 Hitachi Universal Storage Platform V/VM User and Reference Guide RAID group (7D+1P / 4D+4D) Fibr e Port Number...

  • Page 37: Disk Drives And Flash Drives

    Disk Drives and Flash Drives The Universal Storage Platform V/VM supports high-speed disk drives and flash drives with ultra-high-speed response. The drives use fixed-block- architecture (FBA) format. flash drives: 73 GB, 146 GB, 200 GB, 300 GB, 400 GB, 450 GB, 750 GB, 1 TB.

  • Page 38: Service Processor

    Service Processor The Universal Storage Platform V/VM includes a built-in custom PC called the service processor (SVP). The SVP is integrated into the controller and can only be used by authorized Hitachi Data Systems personnel. The SVP enables the Hitachi Data Systems representative to configure, maintain, service, and upgrade the storage system.

  • Page 39: Control Panel And Emergency Power-Off Switch

    USP V/VM control panel. To open the control panel cover, push and release on the point marked PUSH. FRONT VIEW Figure 2-4 FRONT VIEW Figure 2-5 Hitachi Universal Storage Platform V/VM User and Reference Guide Control Panel SUB-SYSTEM RESTART READY REMOTE...
  • Page 40 PS-ON PS SW ENABLE PS ON / PS OFF EMERGENCY 2-14 Hitachi Universal Storage Platform V/VM User and Reference Guide Type When lit, indicates that input/output operation on the channel (Green) interface is possible. Applies to both storage clusters. When lit, indicates that low DC voltage, high DC current, abnormally (Red) high temperature, or a failure has occurred.

  • Page 41: Emergency Power-Off Switch

    REAR VIEW CONTROLLER FRAME Figure 2-6 Figure 2-7 Hitachi Universal Storage Platform V/VM User and Reference Guide EMERGENCY UNIT EMERGENCY POWER OFF Location of EPO Switch on the USP V FRONT VIEW OF...

  • Page 42: Intermix Configurations

    RAID-Level Intermix RAID technology provides full fault-tolerance capability for the data drives of the Universal Storage Platform V/VM. The cache management algorithms enable the USP V/VM to stage up to one full RAID stripe of data into cache ahead of the current access to allow subsequent access to be satisfied from cache at host channel transfer speeds.

  • Page 43: Data Drive Intermix

    For the latest information on supported LVI and LU types and intermix requirements, please contact your Hitachi Data Systems account team. Array Frame OPEN-V Figure 2-9 Hitachi Universal Storage Platform V/VM User and Reference Guide USP V Array Frame Controller Frame Pair...
  • Page 44 2-18 Architecture and Components Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 45: Functional And Operational Characteristics

    Universal Storage Platform V/VM. RAID Implementation CU Images, LVIs, and LUs Storage Navigator System Option Modes, Host Modes, and Host Mode Options Mainframe Operations Open-Systems Operations Battery Backup Operations Functional and Operational Characteristics Hitachi Universal Storage Platform V/VM User and Reference Guide Characteristics...

  • Page 46: Raid Implementation

    *Note for RAID-10(4D+4D): It is recommended that both RAID-10 (2D+2D) groups within a RAID-10 (4D+4D) group be configured under the same BED pair. Hitachi Universal Storage Platform V/VM User and Reference Guide illustrates a sample RAID-10 (2D+2D) layout. A RAID-10 Functional and Operational Characteristics...
  • Page 47 (3390-x or OPEN-x). For open systems, each LDEV is mapped to a SCSI address, so that it has a TID and logical unit number (LUN). Functional and Operational Characteristics Hitachi Universal Storage Platform V/VM User and Reference Guide Track 8 Track 8...

  • Page 48: Sequential Data Striping

    In a RAID-6 (dual parity) configuration, two parity drives are used to prevent loss of data in the unlikely event of a second failure during a rebuild of a previous failure. Hitachi Universal Storage Platform V/VM User and Reference Guide Track 8 Track 16...

  • Page 49: Ldev Striping Across Array Groups

    LDEV Striping Across Array Groups In addition to the conventional concatenation of RAID-10 array groups (4D+4D), the Universal Storage Platform V/VM supports LDEV striping across multiple RAID-5 array groups for improved LU performance in open-system environments. The advantages of LDEV striping are: •...
  • Page 50 All data drives and device emulation types are supported for LDEV striping. LDEV striping can be used in combination with all USP V/VM data management functions. Hitachi Universal Storage Platform V/VM User and Reference Guide LDEV Striping LDEV Striping Across 4 RAID-5 (7D+1P) Array Groups...

  • Page 51: Cu Images, Lvis, And Lus

    CU Images, LVIs, and LUs CU Images The Universal Storage Platform V/VM is configured with one control unit image for each 256 devices (one SSID for each 64 or 256 LDEVs) and supports a maximum of 510 CU images (255 in each logical disk controller, or LDKC).

  • Page 52: Logical Units

    Logical Units The Universal Storage Platform V/VM is configured with OPEN-V LU types. The OPEN-V LU can vary in size from 48.1 MB to 4 TB. For information on other LU types (OPEN-3, OPEN-9), contact your Hitachi Data Systems representative.

  • Page 53: Storage Navigator

    Storage Navigator The Hitachi Storage Navigator software communicates directly with the Universal Storage Platform V and VM storage systems via a local-area network (LAN) to obtain storage system configuration and status information and send user-requested commands to the storage systems. Storage Navigator displays detailed storage system information and allows users to configure and perform operations on the Universal Storage Platform V/VM.

  • Page 54: System Option Modes, Host Modes, And Host Mode Options

    System Option Modes, Host Modes, and Host Mode Options System Option Modes To provide greater flexibility and enable the Universal Storage Platform V/VM to be tailored to unique customer operating requirements, additional operational parameters, or system option modes, are available. At installation, the modes are set to their default values (specified below).
  • Page 55 Async TrueCopy for z/OS Changing default of CGROUP Freeze option. Hitachi Universal Storage Platform V/VM User and Reference Guide Function When receiving the Freeze command, pairs that fulfill the conditions below are suspended and the SCP is set. In the...
  • Page 56 Chip without issuing the OLS. Mainframe Pre-labeling: Pre-label is added via SVP as tentative volume serial name into logical device formatting. 3-12 Hitachi Universal Storage Platform V/VM User and Reference Guide Function Table 3-2 Functional and Operational Characteristics Default MCU/RCU MCU/RCU –...
  • Page 57 Mode 449 = ON: Detecting and monitoring of path blockade Replicator for z/OS will NOT be performed. Mode 449 = OFF: Detecting and monitoring of the path blockade will be performed. Hitachi Universal Storage Platform V/VM User and Reference Guide Function Functional and Operational Characteristics Default MCU/RCU –...
  • Page 58 SPLIT. The external storage data is not fixed (current spec). 3-14 Hitachi Universal Storage Platform V/VM User and Reference Guide Function If the LDEV is not written with data “0” before performing the function, the LDEV format may fail.
  • Page 59 32-multiplexed read size of 1 MB by default. Note: The data transfer speed can be changed using the Change JNL Group options. Hitachi Universal Storage Platform V/VM User and Reference Guide Function above. SM backup or the completion time of volatile PS-ON after SM recovery takes up to 30 minutes.
  • Page 60 Mode 484 = ON: Display information of PPRC path QUERY in FC interface format. Mode 484 = OFF: Display information of PPRC path QUERY in ESCON interface format. 3-16 Hitachi Universal Storage Platform V/VM User and Reference Guide Function Functional and Operational Characteristics Default MCU/RCU –...
  • Page 61 Mode 494 = OFF: CUIR processing is not available. Caution: Power cycle is required. Hitachi Universal Storage Platform V/VM User and Reference Guide Function Mode 491 requires at least three BED features. If there are less than three BED features, mode 491 is not effective.
  • Page 62 Mode 505 = OFF: Speed of changing CLPR cache assignment is normal (max 5 minutes per 1 GB). 3-18 Hitachi Universal Storage Platform V/VM User and Reference Guide Function Make Volume, LDEVs can be added without performing the LDEV format operation.
  • Page 63 Mode 545 = OFF: The record #0 format is not allowed. Note: Use this mode when CU type 2107 is used, or INVALID TRACK FORMAT ERROR occurs on VM MINIDISK. Hitachi Universal Storage Platform V/VM User and Reference Guide Function Mode 506 = ON (default): Without update I/O: Delta Resync is enabled.
  • Page 64 Mode 561 = OFF (default): Quick Restore for external volumes with different Cache Mode settings is allowed. 3-20 Hitachi Universal Storage Platform V/VM User and Reference Guide Function When Command Device is used online, if a script containing an operation via Command Device is executed, the script may stop if this mode is set to ON.
  • Page 65 3. Extent exclusion wait tends to take place for the Write 4. Same as #3, though extent exclusion wait tends to take Note: Hitachi Universal Storage Platform V/VM User and Reference Guide Function processing on another record in the same extent, so that the performance may degrade.
  • Page 66 3. As the HDD blocks are allocated in random order, a pool 4. Even though this mode is ON, pools created when this 3-22 Hitachi Universal Storage Platform V/VM User and Reference Guide Function applied in the case where pair creation in TCz – SIz cascading configuration in the ICKDSF environment fails with the following message output.
  • Page 67 SM backup. Note: This option is recommended when PS Off that exceeds the backup time is performed, or where NSC model is used. Hitachi Universal Storage Platform V/VM User and Reference Guide Function importance of the audit log is high.
  • Page 68 Mode 685 = ON (only when more than two cache PCBs exist): Mode 685 = OFF (default): Note: 3-24 Hitachi Universal Storage Platform V/VM User and Reference Guide Function USP V model only (USP VM does not have more than 2 cache PCBs).
  • Page 69 Mode 690 = OFF: Read JNL or JNL Restore is not prevented when the Write Pending rate on RCU exceeds 60% (the same as before). Note: Hitachi Universal Storage Platform V/VM User and Reference Guide Function This mode can be set online. The micro-programs on both MCU and RCU must support this mode.
  • Page 70 SI, VM, CoW Shapshot, Flash Copy or Resync may become lower. As a consequence the copy speed may be slower. 3-26 Hitachi Universal Storage Platform V/VM User and Reference Guide Function open). Suspend. Consistency is not in the latest state.
  • Page 71 4. After JNLG registration, even if the mode status is switched 5. If the UR pair suspends, failure suspend occurs to the 6. The TC/UR pair configuration is cascading, but the Hitachi Universal Storage Platform V/VM User and Reference Guide Function remain ON at the I-site.
  • Page 72 Note: 3-28 Hitachi Universal Storage Platform V/VM User and Reference Guide Function When the RAID level or emulation type is changed for the existing parity group, this option should be applied only if the drive mounted position remains the same at the time of the parity group uninstallation or installation.
  • Page 73 3. When this option is applied, as turning the power ON/OFF 4. Make sure to turn this option on after preparing a normal Hitachi Universal Storage Platform V/VM User and Reference Guide Function Additional Configuration Back Up to ON or OFF using the System Disk Option of VLL function of Storage Navigator.
  • Page 74 3. This option, which is for functional improvement to avoid 4. If this option is not applied, maintenance ends in failure if 3-30 Hitachi Universal Storage Platform V/VM User and Reference Guide Function The threshold of pool is high (e.g., 95%) and the pool may be full.
  • Page 75 1. This option is set to ON to have SIM for users reported to 2. When MODE 734 is turned OFF, SIM-RC625000 is not Hitachi Universal Storage Platform V/VM User and Reference Guide Function from being unavailable due to pool full.
  • Page 76 1. This option is applied when the Characteristic1 item is 2. If this option needs to be activated immediately after its 3-32 Hitachi Universal Storage Platform V/VM User and Reference Guide Function “incompletely-used slot” volume as a LUSE volume, regardless of whether this option is On or OFF, the MAXLBA is set per block on RCU side without exception.
  • Page 77 Virtual LVI/LUN (CVS) Virtual LVI/LUN (CVS) Format Format Format Hitachi Universal Storage Platform V/VM User and Reference Guide Function characteristic is desired. the MODE 748 is OFF can be subject to the Dynamic Provisioning Rebalance function. concentrated on the installed pool volumes.

  • Page 78: Host Modes And Host Mode Options

    Format Host Modes and Host Mode Options The Universal Storage Platform V/VM supports connection of multiple server hosts of different platforms to each of its ports. When your system is configured, the hosts connected to each port are grouped by host group or by target.

  • Page 79: Mainframe Operations

    Mainframe Operating System Support Table 3-4 lists the mainframe operating systems currently supported by the Universal Storage Platform V and VM storage systems. Please contact your Hitachi Data Systems account team for the latest information on mainframe operating system support.

  • Page 80: Mainframe Configuration

    Mainframe Configuration After physical installation of the Universal Storage Platform V or VM storage system has been completed, the user configures the storage system for mainframe operations with assistance as needed from the Hitachi Data Systems representative. Please refer to the following user documents for information and instructions on configuring your USP V/VM storage system for mainframe operations: •...

  • Page 81: Open-Systems Operations

    Open-Systems Operations Open-Systems Compatibility and Functionality The Universal Storage Platform V/VM supports and offers many features and functions for the open-systems environment, including: • Multi-initiator I/O configurations in which multiple host systems are attached to the same fibre-channel interface •...

  • Page 82: Open-Systems Host Platform Support

    Red Hat Linux SuSE Linux VMware *Note: The AIX ODM updates are included on the Product Documentation Library (PDL) CDs that come with the Hitachi USP V/VM. 3-38 Hitachi Universal Storage Platform V/VM User and Reference Guide Configuration Guide MK-96RD636...

  • Page 83: Open-Systems Configuration

    Open-Systems Configuration After physical installation of the Universal Storage Platform V/VM has been completed, the user configures the storage system for open-systems operations with assistance as needed from the Hitachi Data Systems representative. Please refer to the following user documents for information and instructions on configuring your USP V/VM storage system for open-systems operations: •...

  • Page 84: Battery Backup Operations

    – Destage mode: The destage process may not be possible until the battery charging is complete, and the backup time may also become short (less than 18/24 hours). 3-40 Hitachi Universal Storage Platform V/VM User and Reference Guide Functional and Operational Characteristics...
  • Page 85 2. When power is recovered after a failure during the destage process, the destage and power-off processes are executed. Figure 3-6 Hitachi Universal Storage Platform V/VM User and Reference Guide Universal Storage Platform V: 48 hours: CM up to 128 GB 36 hours: CM 132 GB to 256 GB CM and SM are backed up by battery.
  • Page 86 3-42 Functional and Operational Characteristics Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 87: Troubleshooting

    This chapter provides basic troubleshooting information for the Universal Storage Platform V/VM and instructions for calling technical support. General Troubleshooting Service Information Messages Calling the Hitachi Data Systems Support Center Troubleshooting Hitachi Universal Storage Platform V/VM User and Reference Guide Troubleshooting...

  • Page 88: General Troubleshooting

    General Troubleshooting The Hitachi Universal Storage Platform V and VM storage systems are not expected to fail in any way that would prevent access to user data. The READY LED on the control panel must be ON when the storage system is operating online.

  • Page 89: Service Information Messages

    The serious and acute SIMs (highest severity) are reported to the mainframe host(s) once every eight hours. Note: If a serious or acute-level SIM is reported, call the Hitachi Data Systems Support Center immediately to ensure that the problem is being addressed.

  • Page 90: Calling The Hitachi Data Systems Support Center

    Calling the Hitachi Data Systems Support Center If you need to call the Hitachi Data Systems Support Center, make sure to provide as much information about the problem as possible, including: • The circumstances surrounding the error or failure •...

  • Page 91: Units And Unit Conversions

    Table A-1 provides conversions for standard (U.S.) and metric units of measure associated with the Universal Storage Platform V/VM storage systems. Table A-1 Conversions for Standard (U.S.) and Metric Units of Measure From British thermal units (BTU) British thermal units (BTU)
  • Page 92 Units and Unit Conversions Hitachi Universal Storage Platform V/VM User and Reference Guide...

  • Page 93: Acronyms And Abbreviations

    CLPR cache logical partition cache memory adapter central processing unit Canadian Standards Association cache switch, cache switch card control unit custom volume Acronyms and Abbreviations Hitachi Universal Storage Platform V/VM User and Reference Guide Acronyms-1...
  • Page 94 HACMP High Availability Cluster Multi-Processing host bus adapter Acronyms-2 Hitachi Universal Storage Platform V/VM User and Reference Guide ® ) (unit used for vibration and shock) Convention for Storage Capacity Acronyms and Abbreviations Values)
  • Page 95 MPLF Multi-Path Locking Facility magnetoresistive ms, msec millisecond Multiple Virtual Storage (including MVS/ESA, MVS/XA) Acronyms and Abbreviations Hitachi Universal Storage Platform V/VM User and Reference Guide Convention for Storage Capacity Convention for Storage Capacity Values) Values) Acronyms-3...
  • Page 96 ShadowImage for IBM z/OS SLPR storage logical partition shared memory adapter System Managed Storage SNMP simple network management protocol system option mode Storage Replication Adapter Acronyms-4 Hitachi Universal Storage Platform V/VM User and Reference Guide Convention for Storage Capacity Acronyms and Abbreviations Values)
  • Page 97 Extended Distance Feature (for ExSA channels) Extended Remote Copy (an IBM mainframe host software function) zHPF High Performance FICON for System z Acronyms and Abbreviations Hitachi Universal Storage Platform V/VM User and Reference Guide Convention for Storage Capacity Values) Acronyms-5...
  • Page 98 Acronyms-6 Acronyms and Abbreviations Hitachi Universal Storage Platform V/VM User and Reference Guide...
  • Page 99 Dynamic Provisioning, 1-3, 1-8 encrypting back-end director, 2-9 encryption, 1-3 error conditions, 4-2 ESCON features, 2-7–2-8 ExSA features, 2-7–2-8 Hitachi Universal Storage Platform V/VM User and Reference Guide failover, 3-31 FBA-to-CKD conversion, 2-7 fibre-channel features, 2-7–2-8 FICON features, 2-7–2-8 FICON/zHPF, 2-7...
  • Page 100 Storage Replication Adapter, 1-11 system option modes, 3-10–3-27 technical support, 4-4 troubleshooting, 4-2 Universal Storage Platform V/VM overview, 1-2 specifications, 1-4 user documentation, 1-9–1-12 Index-2 Hitachi Universal Storage Platform V/VM User and Reference Guide VMware Site Recovery Manager, 1-11 zHPF, 2-7 Index...
  • Page 101 Hitachi Universal Storage Platform V/VM User and Reference Guide...
  • Page 102 Hitachi Data Systems Corporate Headquarters 750 Central Expressway Santa Clara, California 95050-2627 U.S.A. Phone: 1 408 970 1000 www.hds.com info@hds.com Asia Pacific and Americas 750 Central Expressway Santa Clara, California 95050-2627 U.S.A. Phone: 1 408 970 1000 info@hds.com Europe Headquarters...

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