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Glossary–1

Hitachi Unified Storage VM Product Overview Guide

Glossary

This glossary defines the special terms used in this document.

array

See disk array.

back-end I/O module

The hardware component that controls the transfer of data between the

drives and cache. A back-end I/O module feature consists of a pair of

boards. A back-end I/O module is also referred to as a disk adapter

(DKA).

CHA

See channel adapter.

controller chassis

The hardware assembly that contains the logic and processing

components of the Unified Storage VM storage system, including the

front-end directors, virtual storage directors, cache memory, switches,

and back-end directors. The Unified Storage VM storage system can be

configured with one or two control chassis.

Содержание Unified Storage VM

Страница 1: ...Getting Help Product Version Contents FASTFIND LINKS Hitachi Unified Storage VM Product Overview Guide MK 92HM7003 04 ...

Страница 2: ...ment may not be currently available Refer to the most recent product announcement or contact your local Hitachi Data Systems sales office for information about feature and product availability Notice Hitachi Data Systems products and services can be ordered only under the terms and conditions of Hitachi Data Systems applicable agreements The use of Hitachi Data Systems products is governed by the ...

Страница 3: ...vention for storage capacity values x Accessing product documentation x Getting help x Comments xi 1 System Overview 1 1 System features 1 2 Block module storage system 1 2 Overview 1 3 Features 1 3 Scalability 1 3 High performance 1 4 High capacity 1 5 Connectivity 1 5 High reliability 1 5 Non disruptive service and upgrades 1 6 Economical and quiet 1 6 File module storage system 1 6 Overview 1 6...

Страница 4: ...External fast ethernet 10 100 or GigE switches 2 11 10 GbE 10 Gigabit Ethernet switches cluster configurations only 2 12 3 Software Overview 3 1 Block Module software features and functions 3 2 Virtualization 3 2 Performance Management 3 2 Provisioning 3 2 Data Replication 3 3 Security 3 4 System Maintenance 3 4 Host Server software 3 5 File module storage system software features and functions 3 ...

Страница 5: ... 4 4 Provisioning and configuration tasks 4 5 5 Storage virtualization tasks 4 6 6 Data replication and disaster recovery tasks 4 6 Optional setup tasks 4 6 1 Provisioning and configuration 4 7 2 Performance monitoring and tuning tasks 4 7 3 Troubleshooting and other tasks 4 7 A Hitachi Unified Storage VM user guides A 1 Unified Storage VM user guides by topic A 2 Unified Storage VM user guides by...

Страница 6: ...Hitachi Unified Storage VM Product Overview Guide vi Contents ...

Страница 7: ...stem Read this document carefully to understand how to use this product and keep a copy for reference Safety and environmental information Intended audience Release notes Product version Document revision level Changes in this revision Referenced documents Document conventions Convention for storage capacity values Accessing product documentation Getting help Comments ...

Страница 8: ...on about the HUS VM file module NAS operating system SU and SMU Each of the release notes describe the new features functions and changes Both release notes are available on the Hitachi Data Systems Portal https portal hds com Product version This document revision applies to Hitachi Unified Storage VM firmware version 73 03 0x and later Document revision level Changes in this revision Changed the...

Страница 9: ... The CacheInfo csv file Italic Indicates a variable which is a placeholder for actual text provided by the user or system Example copy source file target file Angle brackets are also used to indicate variables Monospace Indicates text that is displayed on screen or entered by the user Example pairdisplay g oradb angle brackets Indicates a variable which is a placeholder for actual text provided by...

Страница 10: ...rt log on to the Hitachi Data Systems support portal for contact information https Portal HDS com Important Information that is essential to the completion of a task Caution Failure to take a specified action can result in adverse conditions or consequences such as damage to the software or hardware WARNING Failure to take a specified action can result in severe conditions or consequences such as ...

Страница 11: ...send us your comments about this document to doc comments hds com Include the document title and number including the revision level for example 07 and refer to specific sections and paragraphs whenever possible All comments become the property of Hitachi Data Systems Thank you ...

Страница 12: ...Hitachi Unified Storage VM Product Overview Guide xii Preface ...

Страница 13: ...ed Storage VM Block Module Hardware User Guide NOTE The Hitachi Unified Storage VM storage system may be installed only by Hitachi Data Systems service personnel or authorized service partners However some high level installation information is included in this manual and in the Hitachi Unified Storage VM Block Module Hardware User Guide for reference System features Block module storage system Fi...

Страница 14: ...your current storage investments and more closely align IT with business objectives by enhancing capacity efficiency Unified Storage VM storage systems provide the foundation for matching application service requirements to different classes of storage and for delivering critical services including Virtualization of all storage assets Business continuity data protection services Simplified managem...

Страница 15: ...e The system can be configured starting with a single diskless system up to a large three rack system that includes up to 1 152 HDD drives including up to 128 SSD drives and up to 96 flash module drives and a total of 256 GB cache The system provides a highly granular upgrade path allowing the addition of file modules or data drives to the drive chassis in an existing system as storage needs incre...

Страница 16: ...I O modules and back end I O modules is 8 Two to four back end I O modules each is a pair of boards This provides a total of 8 when all of the back end I O module slots are used In this case only two host I O modules can be installed Cache memory capacity multiple configurations from 32 GB to 256 GB Disk drive capacities of 300 GB 600 GB 900 GB and 3TB Flash drive capacities of 200 GB 400 GB and 8...

Страница 17: ...rating systems go to http www hds com products interoperability index htm The system supports the Fibre Channel host interface Storage Navigator The required features for the Storage Navigator computer include operating system available disk space screen resolution CD drive network connection USB port CPU memory browser Flash and Java environment These features are described in Chapter 1 of the Hi...

Страница 18: ... chassis and drive boxes are thermostatically controlled Sensors in the units measure the temperature of the exhaust air and set the speed of the fans only as high as necessary to maintain the unit temperature within a preset range When the system is not busy and generates less heat the fan speed is reduced saving energy and reducing the noise level of the system Power Saving Mode When the storage...

Страница 19: ...er namespace functionality provides a single namespace with a directory structure that is independent of where data actually resides in physical storage Virtual servers are used to group server resources to match the needs of application or organizational requirements In a clustered environment file systems can be quickly relocated among physical servers for load balancing and virtual servers auto...

Страница 20: ...ion Guide Figure 1 3 Example Unified Storage VM file module configurations on page 1 9 shows two examples of file module system configurations including a rack containing up to two NAS servers two system management units SMUs two fibre channel switches and up to 32U of storage per rack depending on the number of servers and system management units installed The hardware section following the figur...

Страница 21: ...System overview 1 9 Hitachi Unified Storage VM Product Overview Guide Figure 1 3 Example Unified Storage VM file module configurations ...

Страница 22: ...icient use of high performance NAS server The more powerful the server is the better suited it is to virtualize a larger number of less capable under utilized devices HNAS can virtualize 3rd party NAS devices and relocate data in the background allowing the customer to preserve existing assets until they can be taken out of service Our implementation of virtual servers allows groups to retain owne...

Страница 23: ...ogy within the Hitachi File System to add more servers while maintaining a single namespace This provides easy management of large pools of data but the Hitachi File System still offers true separation of function between storage and servers Each may be scaled independently to meet your needs there is no requirement to purchase one to get the other as with many competing NAS product High namespace...

Страница 24: ...osing of existing storage devices as external storage tiers lowering total costs and offering easier platform transition Effective data reduction The Hitachi File System can reduce storage requirements by various mechanisms thus making storage more cost effective The Hitachi File System can de duplicate primary data with minimal performance impact In addition it can move data that is not actively ...

Страница 25: ...ated in the Hitachi Unified Storage VM Block Module Hardware User Guide NOTE The Hitachi Unified Storage VM storage system may be installed only by Hitachi Data Systems service personnel or authorized service partners However some high level installation information is included in this manual and in the Hitachi Unified Storage VM Block Module Hardware User Guide for reference Block module storage ...

Страница 26: ...le drives The HUS VM block module storage system controller chassis contains the control logic processors memory and interfaces to the drive boxes and the host servers The HUS VM block module storage system supports multiple cache configurations with a maximum of 256 GB The system provides a highly granular upgrade path allowing the addition of disk drives to the drive chassis and both main cache ...

Страница 27: ... box They are all described briefly in this chapter and in detail in the Hitachi Unified Storage VM Block Module Hardware User Guide Figure 2 1 HUS VM block module storage system Item Description Item Description 1 Blank space for installation lifter 2U 2 Controller chassis 3 DBX dense drive box 48 LFF drives 4 DBS drive box 24 SFF drives or DBL drive box 12 LFF drives 5 Blank space 1U ...

Страница 28: ...granularity to a system offering up to twice the number of processors cache capacity host interfaces and disk storage capacity It is mounted at the bottom of the rack because it is heavier than the drive boxes The following illustration shows the front and rear views of the controller chassis Figure 2 2 HUS VM block module storage system components Item Description Item Description 1 Controller Ch...

Страница 29: ...Storage VM system to meet specific storage requirements More detail about the drive boxes is provided in the Hitachi Unified Storage VM Block Module Hardware User Guide DBS Drive Box Small form factor drives This drive box can contain up to 24 vertically mounted 2 1 2 inch HDD or SDD drives DBL Drive Box Large form factor drives This drive box can contain up to 12 horizontally mounted 3 1 2 inch H...

Страница 30: ...nits Each unit contains a maximum of 24 vertically mounted from the top of the drive box LFF HDD or SSD drives Up to 24 dense drive boxes can be mounted in a Unified Storage VM system The standard and dense drive boxes are shown in the following figure Figure 2 4 Standard drive boxes front bezels removed Figure 2 5 Dense drive box front bezel removed ...

Страница 31: ...aximum Number of LDEVs volumes 16 384 Supported RAID Levels RAID1 RAID 5 RAID 6 RAID Group Configuration RAID1 2D 2D 4D 4D RAID5 3D 1P 7D 1P RAID6 6D 2P 14D 2P Internal Path Architecture Hierarchical Star Net Maximum Bandwidth Cache Path 128 GB s Control Path 64 GB s Back end Path SAS 6G 32 2WL 6 Memory Cache memory capacity 32 GB 64 GB 96 GB 128 GB Cache flash memory capacity 160 GB Number of por...

Страница 32: ...y Controller Chassis 60dB 24ºC or less 62dB 32ºC Standby DBS DBX 54dB Notes 1 When 300 GB is mounted 2 All FED configuration no BEDs diskless system 3 Zero BEDs in a diskless configuration two BEDs min if drives are installed Drive Type Size inches 1 Drive Capacity Speed RPM HDD SAS n a 3 1 2 3 TB 7 200 2 1 2 600 GB 900 GB 10 000 SSD Flash MLC SAS 2 2 1 2 200 GB 400 GB Flash Module MLC 5 1 4 1 6 T...

Страница 33: ...aces The server contains dual mirrored data drives to store file module system data a battery pack that in the event of a power outage preserves data that has not been written to disk for up to 72 hours and fans to keep the server cool and operating efficiently Typically the file module is placed in the middle or upper portion of a rack because fully populated drive boxes are significantly heavier...

Страница 34: ...escription Item Description Item Description 1 NVRAM backup battery 2 Fan 1 3 Fan 2 4 NVRAM battery backup pack status LED 5 Fan 1 status LED 6 Fan 2 status LED 7 Hot swappable power supplies 8 Keyboard purple and mouse green ports 9 USB ports 10 Serial port RS 232 11 Monitor port Figure 2 7 File module server rear view ...

Страница 35: ...a network ports 3 GE ports 4 10 100 Ethernet ports 5 1 2 4Gbps FC ports 6 NVRAM power and server status LEDs and Power and Reset buttons 7 Hot swappable power supplies 8 Keyboard purple and mouse green ports 9 USB ports 10 Serial port RS 232 11 Monitor port 12 Ethernet management port 0 Eth0 13 Ethernet management port 1 Eth1 Note The server includes an embedded SMU which can manage a single file ...

Страница 36: ...re two RAID subsystems attached and an external SMU is used All cluster configurations require an external Ethernet switch 10 GbE 10 Gigabit Ethernet switches cluster configurations only The HUS VM file module server supports 10 GbE switches that connect multiple storage servers configured as a cluster Contact your Hitachi Data Systems representative for information about the 10 GbE switches that ...

Страница 37: ...ed Storage VM storage system NOTE The Hitachi Unified Storage VM storage system includes basic software installed at the factory Users can install additional software and licenses as needed or can ask their Hitachi Data Systems authorized service partner to do it for them Block module software features and functions File module storage system software features and functions ...

Страница 38: ...the provisioning software that is available on the Unified Storage VM storage system Feature Description Hitachi Virtual Partition Manager Provides logical partitioning of the cache which allows you to divide the cache into multiple virtual cache memories to reduce I O contention Hitachi Cache Residency Manager Supports the virtualization of external storage systems Users can connect other storage...

Страница 39: ...y and efficiency of disk drives by assigning physical capacity on demand at the time of the write command receipt without assigning the physical capacity to logical units Hitachi Virtual LVI Converts single volumes logical volume images or logical units into multiple smaller volumes to improve data access performance Hitachi Data Retention Utility Protects data in logical units volumes LDEVs from ...

Страница 40: ...curity for the AES XTS mode of operations External Authentication and Authorization Storage management users of Unified Storage VM systems can be authenticated and authorized for storage management operations using existing customer infrastructure such as Microsoft Active Directory LDAP and RADIUS based systems Role Based Access Control RBAC Provides greater granularity and access control for Unif...

Страница 41: ...tegrity is also maintained during the migration or recall But the data appears as if it has not moved at all Users and applications see the data as if it still exists in the original location The Hitachi File System contains the metadata that indicates where the data actually resides Cross volume links Cross volume links CVL and external cross volume links XVL are complementary technologies that e...

Страница 42: ...or to a cluster of servers If applied to a single server the feature is called local read caching When used with a cluster of servers each server maintains its own dynamic cache but is aware of the files accessed by all the other servers in the cluster Copies of hot files from anywhere in the cluster therefore make their way to every cache on every server which can result in dramatic aggregate rea...

Страница 43: ...e system and are a very convenient way to give end users a way to roll back to a previous point in time to recover their own data There are several data replication options within the Hitachi NAS system software these may be described as either file object or block based and synchronous or asynchronous High availability The Hitachi File System high availability HA design is the concept of enterpri...

Страница 44: ...od described above Event based using scripts and the remote scripting tool the storage administrator may automate the taking of a snapshot based on trigger events generated by the server Space efficient clones File clones provide the ability to instantly create space efficient writeable copies of single files This is a key feature for virtualization as it allows VMware administrators to quickly de...

Страница 45: ... occur prior to and immediately after the IDR schedule Object replication The Hitachi File System is object based which means core file system structures and user data are stored as objects rather than files or blocks Object replication takes advantage of this structure to replicate these blocks natively regardless of which file or directory that they may belong to which negates the need to assemb...

Страница 46: ...se of advanced fiber optic wavelength division multiplexing technologies this range can be considerably extended to 100km or more Backup features Backup services seek to achieve a copy of the data at a specific point in time usually for off line preservation As with replication the Hitachi File System leverages snapshots to allow the storage administrator to perform backups while continuing to ser...

Страница 47: ...lete to plan and prepare the installation site and to install and configure the system This chapter does not contain the actual instructions to set up and configure the site and the system It includes pointers to the Unified Storage VM user guides that provide the instructions for these tasks Note that only Hitachi Data Systems employees or authorized service providers are allowed to install and c...

Страница 48: ...n tasks on page 4 4 Hitachi Unified Storage File Module Hardware Reference 4 Log in to the system Hitachi Unified Storage VM Block Module Hitachi Storage Navigator User Guide Hitachi Unified Storage File Module Storage Systems User Administration Guide 5 Set up user accounts enable software licenses Hitachi Unified Storage VM Block Module Hitachi Storage Navigator User Guide Hitachi Unified Storag...

Страница 49: ...ser Guide Hitachi Unified Storage File Module Antivirus Administration Guide Hitachi Unified Storage File Module Storage Subsystem Administration Guide Hitachi Unified Storage File Module Server and Cluster Administration Guide Hitachi Unified Storage File Module Hardware Reference Site preparation tasks Block Module File Module 1 Review the entire installation procedure before beginning work 2 Fa...

Страница 50: ...ED is ON Hitachi Unified Storage VM Block Module Hardware User Guide Hitachi Unified Storage File Module Hardware Reference Storage Management Task Block Module File Module 1 Log in 2 Change admin password 3 Set up user accounts 4 Enable license keys Hitachi Unified Storage VM Block Module Hitachi Storage Navigator User Guide Hitachi Unified Storage File Module System Access Guide Hitachi Unified ...

Страница 51: ...eters 7 Create mount directories mount and verify the file systems and set and verify auto mount parameters 8 Configure hosts and ports 9 Define paths to volumes 10 Assign access attribute to volumes 11 Implement dynamic allocation of disk space on an as needed basis Hitachi Unified Storage VM Block Module Provisioning Guide Hitachi Unified Storage VM Hitachi System Operations Using Spreadsheets n...

Страница 52: ...tion and disaster recovery Hitachi Unified Storage VM Block Module Hitachi TrueCopy User Guide Hitachi Unified Storage File Module Replication and Disaster Recovery Administration Guide Hitachi Unified Storage File Module Snapshot Administration Guide Perform asynchronous remote replication and disaster recovery Hitachi Unified Storage VM Block Module Hitachi Universal Replicator User Guide Hitach...

Страница 53: ... Monitor performance statistics of disk drives volumes and other storage components Hitachi Unified Storage VM Block Module Performance Guide Hitachi Unified Storage File Module Server and Cluster Administration Guide Improve data access speed using cache n a Create and managing virtual cache partitions n a Storage Management Task Block Module File Module Review information about GUI messages Hita...

Страница 54: ...Hitachi Unified Storage VM Product Overview Guide 4 8 Setup and configuration overview ...

Страница 55: ...hi Unified Storage VM user guides This section provides a list of all Hitachi Unified Storage VM user documentation by topic The Hitachi Unified Storage VM system includes both the block module and the file module systems Unified Storage VM user guides by topic Unified Storage VM user guides by number ...

Страница 56: ...ation Guide MK 92USF004 Storage Management Hitachi Unified Storage VM Block Module Hitachi Storage Navigator User Guide MK 92HM7016 Hitachi Unified Storage VM Hitachi System Operations Using Spreadsheets MK 92HM7015 Hitachi Unified Storage File Module Storage Subsystem Administration Guide MK 92USF006 Hitachi Unified Storage File Module Server and Cluster Administration Guide MK 92USF007 Hitachi U...

Страница 57: ...chi TrueCopy User Guide MK 92HM7018 Hitachi Unified Storage VM Block Module Hitachi Universal Replicator User Guide MK 92HM7019 Hitachi Unified Storage VM Block Module Thin Image User Guide MK 92HM7010 Hitachi Unified Storage File Module Network Administration Guide MK 92USF003 Hitachi Unified Storage File Module Replication and Disaster Recovery Administration Guide MK 92USF009 Hitachi Unified St...

Страница 58: ...7 Hitachi NAS Platform Troubleshooting Guide technical support only Type of manual Topic Block Module Manual Name File Module Manual Name Part number Block module user guides MK 92HM7003 Hitachi Unified Storage VM Product Overview Guide MK 92HM7005 Hitachi Unified Storage VM Block Module Hardware User Guide MK 92HM7006 Hitachi Command Control Interface Command Reference MK 92HM7007 Hitachi Command...

Страница 59: ...2USF003 Hitachi Unified Storage File Module Network Administration Guide MK 92USF004 Hitachi Unified Storage File Module File Services Administration Guide MK 92USF005 Hitachi Unified Storage File Module Data Migrator Administration Guide MK 92USF006 Hitachi Unified Storage File Module Storage Subsystem Administration Guide MK 92USF007 Hitachi Unified Storage File Module Server and Cluster Adminis...

Страница 60: ...Hitachi Unified Storage VM Product Overview Guide A 6 Hitachi Unified Storage VM user guides ...

Страница 61: ...f data between the drives and cache A back end I O module feature consists of a pair of boards A back end I O module is also referred to as a disk adapter DKA C CHA See channel adapter controller chassis The hardware assembly that contains the logic and processing components of the Unified Storage VM storage system including the front end directors virtual storage directors cache memory switches a...

Страница 62: ... Instead of reserving a fixed amount of storage it removes capacity from the available pool when data is actually written to disk Also called thin provisioning F flash drive A data drive that uses a solid state memory device instead of a rotating hard disk drive to store information free capacity The amount of storage space in bytes that is available for use by the host system s H host I O module ...

Страница 63: ...ol unit CU number and LDEV number The LDEV IDs within a storage system do not change An LDEV formatted for use by open system hosts is called a logical unit LU logical volume See volume LUN logical unit number Sometimes used in place of LU logical unit LUSE LUN Size Expansion M mirror In Universal Replicator each pair relationship in and between journal groups is called a mirror Each pair is assig...

Страница 64: ...n which part of the physical storage space is used to store user data and parity information and another part is used to store a duplicate set of user data and parity information This redundant configuration prevents data loss in case a disk drive within the RAID configuration fails and enables regeneration of user data in the event that one of the array s member disks or the access path to it fai...

Страница 65: ... requirement SIMs are reported to hosts and displayed on Storage Navigator service processor SVP The computer in a VSP storage system that hosts the Storage Navigator software and is used to configure and maintain the storage system SIM service information message SOM system option mode SSD solid state drive See flash drive SVP See service processor SVP system disk The volume from which an open sy...

Страница 66: ...B Z A B C D F H J K L M P R S V Hitachi Unified Storage VM Product Overview Guide Glossary 6 V volume A logical device LDEV or a set of concatenated LDEVs in the case of LUSE that has been defined to one or more hosts as a single data storage unit LU ...

Страница 67: ...ndex basic configuration configuration basic 2 2 2 9 capacity cache 1 4 disk drive 1 4 configuration maximum 1 3 minimum 1 3 1 7 controller chassis 2 4 2 9 controller components 2 4 2 9 features hardware 1 3 software 3 2 specifications drive 1 4 2 8 general 2 7 ...

Страница 68: ...Hitachi Unified Storage VM Product Overview Guide Index 2 ...

Страница 69: ...Hitachi Unified Storage VM Product Overview Guide ...

Страница 70: ... 2845 Lafayette Street Santa Clara California 95050 2639 U S A www hds com Regional Contact Information Americas 1 408 970 1000 info hds com Europe Middle East and Africa 44 0 1753 618000 info emea hds com Asia Pacific 852 3189 7900 hds marketing apac hds com ...

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