Avid MediaNet System Overview Unity Media Net 2.0 Sys Over
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System Overview.book Page i Monday, June 11, 2001 4:19 PM Avid Unity™ MediaNet System Overview Release 2.0 System Overview.book Page ii Monday, June 11, 2001 4:19 PM Copyright and Disclaimer Product specifications are subject to change without notice and do not represent a commitment on the part of Avid Technology, Inc. The software described in this document is furnished under a license agreement. You can obtain a copy of that license by visiting Avid's Web site at www.avid.com. The terms of that license are also available in the product in the same directory as the software. The software may not be reverse assembled and may be used or copied only in accordance with the terms of the license agreement. It is against the law to copy the software on any medium except as specifically allowed in the license agreement. Avid products or portions thereof are protected by one or more of the following United States patents: 4,746,994; 4,970,663; 5,045,940; 5,063,448; 5,077,604; 5,245,432; 5,267,351; 5,309,528; 5,325,200; 5,355,450; 5,396,594; 5,440,348; 5,452,378; 5,467,288; 5,513,375; 5,528,310; 5,557,423; 5,568,275; 5,577,190; 5,583,496; 5,584,006; 5,627,765; 5,634,020; 5,640,601; 5,644,364; 5,654,737; 5,701,404; 5,715,018; 5,719,570; 5,724,605; 5,726,717; 5,729,673; 5,731,819; 5,745,637; 5,752,029; 5,754,180; 5,754,851; 5,781,188; 5,799,150; 5,812,216; 5,828,678; 5,842,014; 5,852,435; 5,883,670; 5,889,532; 5,892,507; 5,905,841; 5,912,675; 5,929,836; 5,929,942; 5,930,445; 5,930,797; 5,946,445; 5,966,134; 5,977,982; 5,986,584; 5,987,501; 5,995,079; 5,995,115; 5,999,190; 5,999,406; 6,009,507; 6,011,562; 6,014,150; 6,016,152; 6,016,380; 6,018,337; 6,023,531; 6,023,703; 6,031,529; 6,035,367; 6,038,573; 6,052,508; 6,058,236; 6,061,758; 6,072,796; 6,084,569; 6,091,422; 6,091,778; 6,105,083; 6,118,444; 6,128,001; 6,128,681; 6,130,676; 6,134,379; 6,134,607; 6,137,919; 6,141,007; 6,141,691; 6,154,221; 6,157,929; 6,160,548; 6,161,115; 6,167,404; 6,174,206; 6,192,388; 6,198,477; 6,208,357; 6,211,869; 6,212,197; 6,215,485; 6,223,211; D352,278; D372,478; D373,778; D392,267; D392,268; D392,269; D395,291; D396,853; D398,912. Additional U.S. and foreign patents pending. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the express written permission of Avid Technology, Inc. © 2001 Avid Technology, Inc. All rights reserved. Printed in USA. Attn. Government User(s). Restricted Rights Legend U.S. GOVERNMENT RESTRICTED RIGHTS. This Software and its documentation are “commercial computer software” or “commercial computer software documentation.” In the event that such Software or documentation is acquired by or on behalf of a unit or agency of the U.S. Government, all rights with respect to this Software and documentation are subject to the terms of the License Agreement, pursuant to FAR §12.212(a) and/or DFARS §227.7202-1(a), as applicable. Trademarks AirPlay, AudioVision, Avid, Avid Xpress, CamCutter, Digidesign, FieldPak, Film Composer, HIIP, Image Independence, Marquee, Media Composer, Media Recorder, NewsCutter, OMF, OMF Interchange, Open Media Framework, Pro Tools, and Softimage are registered trademarks and 888 I/O, AirSPACE, AirSPACE HD, AniMatte, AudioSuite, AutoSync, AVIDdrive, AVIDdrive Towers, AvidNet, Avid Production Network, AvidProNet, AVIDstripe, Avid Unity, Avid Xpress, AVX, DAE, D-Fi, D-fx, D-Verb, ExpertRender, FilmScribe, HyperSPACE, HyperSPACE HDCAM, Intraframe, iS9, iS18, iS23, iS36, Lo-Fi, Magic Mask, make manage move | media, Matador, Maxim, MCXpress, MEDIArray, MediaDock, MediaDock Shuttle, Media Fusion, Media Illusion, MediaLog, Media Reader, MediaShare, Meridien, NaturalMatch, OMM, Open Media Management, QuietDrive, Recti-Fi, rS9, rS18, Sci-Fi, Sound Designer II, SPACE, SPACEnet, SPACEShift, Symphony, Vari-Fi, Video Slave Driver, and VideoSPACE are trademarks of Avid Technology, Inc. Windows and Windows NT are registered trademarks of Microsoft Corporation. Macintosh and Power Macintosh are registered trademarks of Apple Computer, Inc. All other trademarks contained herein are the property of their respective owners. Avid Unity MediaNet System Overview • Part 0130-04883-01 Rev. A • June 2001 System Overview.book Page iii Monday, June 11, 2001 4:19 PM Contents Using This Guide Chapter 1 System Overview MediaNet Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 MediaNet Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3 Accessing Data on the Drive Set . . . . . . . . . . . . . . . . . . . . . . . 1–3 Avid Composer Products Software . . . . . . . . . . . . . . . . . . . . 1–3 MediaNet Storage Subsystem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4 MEDIASwitch and Fibre Channel Network . . . . . . . . . . . . . 1–4 File Manager and Backup File Manager . . . . . . . . . . . . . . . . 1–4 MediaNet Drive Set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5 MediaNet Storage Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7 Spare Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7 MediaNet from the User’s Perspective . . . . . . . . . . . . . . . . . . . . . 1–7 Typical Dataflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8 MediaNet Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–9 Chapter 2 MediaNet Hardware Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2 File Manager and Backup File Manager. . . . . . . . . . . . . . . . . . . . . . . . 2–3 MediaNet Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3 Fibre Channel Adapter Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4 MEDIASwitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4 MEDIArray Drive Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6 System Overview.book Page iv Monday, June 11, 2001 4:19 PM iv Keyboard/Monitor/Mouse Assembly (Optional). . . . . . . . . . . . . . . 2–7 Keyboard/Video/Mouse Switch (Optional) . . . . . . . . . . . . . . . . . . . 2–7 Ethernet Hub (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8 Uninterruptible Power Supplies (Optional) . . . . . . . . . . . . . . . . . . . . 2–8 System Overview.book Page v Monday, June 11, 2001 4:19 PM v Figures Figure 1-1 MediaNet Architecture . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 Figure 2-1 8-Port MEDIASwitch . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5 Figure 2-2 16-Port MEDIASwitch . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5 Figure 2-3 Gigabit Interface Connectors . . . . . . . . . . . . . . . . . . . . .2-6 Figure 2-4 10-Slot Rack-Mount Drive Enclosure . . . . . . . . . . . . . .2-7 System Overview.book Page vi Monday, June 11, 2001 4:19 PM vi System Overview.book Page vii Monday, June 11, 2001 4:19 PM Using This Guide Congratulations on your purchase of MediaNet, the high-performance, high-capacity shared media storage platform for a workgroup of connected Avid® clients. Who Should Use This Guide This overview guide is intended for administrators responsible for the operation and management of a MediaNet workgroup. About This Guide This book provides a high-level overview of MediaNet: • Chapter 1 introduces MediaNet architecture, dataflow and software. • Chapter 2 provides hardware details for the MediaNet components. System Overview.book Page viii Monday, June 11, 2001 4:19 PM viii Symbols and Conventions The MediaNet documentation uses the following special symbols and conventions: 1. Numbered lists, when order is important. a. Alphabetical lists, when the order of secondary items is important. • Bulleted lists, when the order of the items is unimportant. - Indented dashed lists, when the order of subtopics is unimportant. n A note provides important related information, reminders, recommendations, and strong suggestions. c A caution means that a specific action you take could cause harm to your computer or cause you to lose data. If You Need Help If you are having trouble using MediaNet, you should: 1. Retry the action, carefully following the instructions given for that task in your MediaNet documentation. 2. Check the Avid Unity MediaNet Troubleshooting Guide for common MediaNet issues. 3. Check the documentation that came with your hardware for maintenance or hardware-related issues. Using This Guide System Overview.book Page ix Monday, June 11, 2001 4:19 PM ix 4. Check the release notes supplied with your Avid application for information on accessing the Avid Web site and the Avid Knowledge Center. 5. For customer support, contact your local Avid Reseller, or contact Avid Customer Support directly: • Broadcast customers — call 800-NEWS-DNG (639-7364). • Postproduction customers — call 800-800-AVID (2843). Related Information The following documents provide more information about MediaNet: • Avid Unity MediaNet Management Guide • Avid Unity MediaNet Troubleshooting Guide • Avid Unity MediaNet Supported Configurations Guide • Avid Unity MediaNet Setup Guide • Avid Unity MediaNet for Windows Clients Setup Guide • Avid Unity MediaNet for Windows Clients Quick Start Card • Avid Unity MediaNet for Macintosh Clients Setup Guide • Avid Unity MediaNet for Macintosh Clients Quick Start Card • Avid Unity MediaNet Upgrade Notes • Avid Unity MediaNet Release Notes MediaNet also has online Help systems that provide complete information about using the Setup Manager, the Administration Tool, and the Monitor Tool. System Overview.book Page x Monday, June 11, 2001 4:19 PM x If You Have Documentation Comments Avid Technology continuously seeks to improve its documentation. We value your comments about this guide, the Help, the Online Publications CD-ROM, and other Avid-supplied documentation. Simply e-mail your documentation comments to Avid Technology at TechPubs@avid.com Please include the title of the document, its part number, revision, and the specific section you are commenting on in all correspondence. How to Order Documentation To order additional copies of this documentation from within the United States, call Avid Telesales at 800-949-AVID (2843). If you are placing an order from outside the United States, contact your local Avid representative. Using This Guide System Overview.book Page 1 Monday, June 11, 2001 4:19 PM CHAPTER 1 System Overview MediaNet is a high-performance, high-capacity shared media storage platform for a workgroup of connected MediaNet clients. This chapter provides an overview of MediaNet, including: • MediaNet Architecture • MediaNet Storage Overview • Typical Dataflow • MediaNet Software System Overview.book Page 2 Monday, June 11, 2001 4:19 PM 1-2 MediaNet Architecture The MediaNet components enable multiple MediaNet clients to: • Connect to a set of shared drives (collectively called the MediaNet Storage drive set) • Record, play, and edit video and audio media Multiple clients can access the data stored on the MediaNet drive set simultaneously. Figure 1-1 shows the MediaNet components. MediaNet Storage Subsystem Client Backup File Manager (optional) Client MEDIA Switch Client File Manager Client . . . Up to 24 clients Figure 1-1 MediaNet Drive Set (Fibre Channel drives) Fibre Channel network connections MediaNet Architecture The following sections describe the functions of each MediaNet component. Hardware specifics for each of the components are covered in Chapter 2. System Overview System Overview.book Page 3 Monday, June 11, 2001 4:19 PM 1-3 MediaNet Clients A MediaNet workgroup supports up to 24 MediaNet clients connected to the File Manager through the Fibre Channel network. Clients may be Macintosh®, Windows NT®, or Windows® 2000 systems. Accessing Data on the Drive Set To access data on the drive set, a MediaNet client passes a file request to the File Manager. The File Manager returns the requested file’s location information to the client, enabling the client to access the data from the drive set directly. This process avoids creating a bottleneck at the File Manager. Avid Composer Products Software MediaNet clients run any of a variety of Avid applications, collectively called the “Avid Composer Products software.” Avid Composer Products software on Macintosh systems may include Media Composer®, Film Composer®, Avid Media Station, Avid Xpress™, and Digidesign® Pro Tools®. Avid Composer Products software on Windows NT and Windows 2000 operating systems may include Avid Symphony™, Media Composer, Film Composer, Avid Xpress, and NewsCutter® XP. In addition to these software products, MediaNet clients also support MediaManager, TransferManager, and other Avid-supplied utilities. MediaManager allows you to search, catalog and manage the assets currently stored on MediaNet. TransferManager allows you to package the elements of an Avid sequence and send them to another client system, another MediaNet system or a playback device. MediaNet Architecture System Overview.book Page 4 Monday, June 11, 2001 4:19 PM 1-4 MediaNet Storage Subsystem The MediaNet storage subsystem is responsible for storing, retrieving, and managing all data, and consists of the following three components: • MEDIASwitch and Fibre Channel network • File Manager and an optional second File Manager • MediaNet drive set MEDIASwitch and Fibre Channel Network The Fibre Channel network is a high-bandwidth network that supports the high throughput required to allow multiple MediaNet clients to share video and audio files simultaneously. The MEDIASwitch provides the backbone for the network and directs communications among the MediaNet clients, the File Manager, and the MediaNet drive set. File Manager and Backup File Manager The File Manager is an X86-compatible computer running the Windows NT Workstation operating system. The File Manager controls all data access to the MediaNet drive set. It handles requests from MediaNet clients by directing the clients to the appropriate storage locations on the drive set. The File Manager accomplishes this task by caching a complete set of file system metadata in memory. n Once the File Manager provides a MediaNet client with a storage location, the actual data transfer operation occurs directly between the client and the storage, so the File Manager does not form a bottleneck. In addition to the active File Manager, another computer can be set up as a second File Manager to provide system redundancy. The second File Manager automatically replaces the active File Manager if it goes offline for any reason. System Overview System Overview.book Page 5 Monday, June 11, 2001 4:19 PM 1-5 MediaNet Drive Set The MediaNet drive set consists of a collection of Fibre Channel disk drives enclosed in one or more rack-mountable MEDIArray™ enclosures. MEDIArray enclosures can be connected to the MEDIASwitch individually or they can be daisy-chained in sets of two to four enclosures to reduce the number of connections they require to the switch. The MediaNet drive set is managed as a single virtual unit by the File Manager, which greatly simplifies storage management. For more details on the physical and logical organization of the MediaNet drive set, see “MediaNet Storage Overview” on page 1-5. MediaNet Storage Overview MediaNet organizes the management of your storage hardware by combining all of your physical data drives into a drive set that provides a single, large file system. To use the MediaNet file system, you must first assign all data drives in the drive set into allocation groups —individually managed file system partitions that span multiple physical drives. Allocation groups must contain a minimum of four data drives, all of the same size. You can use multiple allocation groups to accommodate drives of different sizes, to optimize performance, or to improve data security. Each allocation group is subdivided into one or more virtual volumes, or workspaces. These workspaces are similar to network drives and are made available to MediaNet clients for mounting (the drive set and allocation groups are transparent to client users). Access to MediaNet storage is controlled by means of user accounts with read access, write access, or both that are specified for each workspace. MediaNet Storage Overview System Overview.book Page 6 Monday, June 11, 2001 4:19 PM 1-6 Workspaces can be resized at any time, within certain limitations (see the Avid Unity MediaNet Management Guide for information on resizing workspaces). The following diagram illustrates the relationship among drive sets, allocation groups, and workspaces. Physical (Hardware) Perspective Logical (User) Perspective Allocation group 1 (Drives of size X) The drive set is partitioned into one or more allocation groups. These are transparent to the user, who sees only one or more available workspaces. Workspaces of various sizes Allocation group 2 (Drives of size Y) Drive Set (Data drives and optional spares) System Overview Workspaces System Overview.book Page 7 Monday, June 11, 2001 4:19 PM 1-7 Protection Data integrity can be ensured by optionally protecting workspaces. Protection involves a redundant configuration in which files written to protected workspaces are duplicated on more than one drive. This allows a protected workspace to be quickly repaired with no data loss if a drive fails. A protected workspace uses twice as much storage space as an unprotected workspace. Spare Drives The MediaNet drive set may also include spare drives that can be swapped for bad data drives in the event of a drive failure. MediaNet from the User’s Perspective MediaNet clients mount workspaces through the Network Neighborhood, in Windows clients, or the Chooser, on Macintosh clients. Multiple MediaNet clients can be connected to the same workspace concurrently. This allows multiple clients to access the same media and to start using it after it has been written to a workspace. MediaNet Storage Overview System Overview.book Page 8 Monday, June 11, 2001 4:19 PM 1-8 Typical Dataflow The following diagram traces the flow of data from a MediaNet client request through to data retrieval. Each of the numbered steps in the diagram is described in more detail following the illustration. Backup File Manager Client (optional) Client 3 Client . . . 3 1 2 2 Client MEDIA Switch 1 Up to 24 clients File Manager MediaNet Drive Set (Fibre Channel Drives) Fibre Channel network connections 1. The MediaNet client issues a request to the File Manager through the MEDIASwitch. 2. The File Manager locates the requested file in its cached copy of the file system metadata and passes its location information back to the MediaNet client. 3. Using the location information it received from the File Manager, the client retrieves the data it needs from the drive set, through the MEDIASwitch. n System Overview After the MediaNet client has received the location information, the File Manager is no longer involved and the client retrieves the data directly from the drive set. This process avoids creating a bottleneck at the File Manager. System Overview.book Page 9 Monday, June 11, 2001 4:19 PM 1-9 All requests and responses between the MediaNet clients and the File Manager are handled through a messaging mechanism. When a client makes a request, the request is stored as a message on the File Manager. The File Manager polls for request messages at regular intervals. When the File Manager finds a request, it processes a response and stores it as a message. MediaNet clients poll for response messages and retrieve the message information accordingly. Unlike the File Manager, MediaNet clients only poll when they are expecting responses. The entire process of data retrieval takes less than one second. MediaNet Software MediaNet provides three tools to help you set up and manage your MediaNet workgroup. Setup Manager You use the Setup Manager to perform storage hardware management tasks such as creating and managing a drive set, starting and stopping the File Manager service, and performing drive maintenance. The Setup Manager runs only on the File Manager computer. Administration Tool The Administration Tool is the primary tool for initial setup and day-to-day administration of allocation groups, workspaces, and users. It also allows you to monitor storage activity. You can run the Administration Tool from the File Manager or from any MediaNet client, in which case it communicates with the File Manager through the Fibre Channel network. You should run only one instance of the Administration Tool at any given time. MediaNet Software System Overview.book Page 10 Monday, June 11, 2001 4:19 PM 1-10 Monitor Tool The Monitor Tool provides low-level performance-monitoring functions. You can also use the Monitor Tool to start and stop the File Manager service and to set some advanced MediaNet features, such as resetting the administrator’s password. The Monitor Tool runs only on the File Manager computer. n System Overview The Avid Unity MediaNet Management Guide provides detailed information on using each of these tools. In addition, each tool has its own help system. System Overview.book Page 1 Monday, June 11, 2001 4:19 PM CHAPTER 2 MediaNet Hardware This chapter provides hardware details for the MediaNet components. For more information on component functionality, see Chapter 1, “System Overview.” This chapter includes: • Hardware Overview • File Manager and Backup File Manager • MediaNet Clients • Fibre Channel Adapter Boards • MEDIASwitch • MEDIArray Drive Enclosures • Keyboard/Monitor/Mouse Assembly (Optional) • Keyboard/Video/Mouse Switch (Optional) • Ethernet Hub (Optional) • Uninterruptible Power Supplies (Optional) System Overview.book Page 2 Monday, June 11, 2001 4:19 PM 2-2 Hardware Overview A MediaNet workgroup contains a number of interconnected components, customized to the needs of the organization using it. A typical MediaNet workgroup contains: c n MediaNet Hardware • One Windows NT system that functions as the File Manager • An optional second Windows NT system that functions as a backup to the active File Manager • One Fibre Channel adapter board each for the File Manager and the backup File Manager • One MediaNet client kit for each client, containing a Fibre Channel adapter board, client software, and user documentation • One or two MEDIASwitches for connecting the File Manager and the MediaNet clients to the storage subsystem • One or more MEDIArray drive enclosures that contain the disk drives • One keyboard/monitor/mouse unit to control the File Manager and the clients (optional) • One keyboard/video/mouse switch (optional) • An Ethernet hub (optional) to connect the File Manager to the MEDIASwitch • Several uninterruptible power supplies (UPS) to manage power to the File Manager and the MediaNet storage (optional) Be careful not to lose the application key that came with your Avid Composer Products software. Your MediaNet clients will not function without it. If you lose the application key, you must purchase another one from Avid. Client systems are not supplied as part of the MediaNet package. They must be purchased separately. System Overview.book Page 3 Monday, June 11, 2001 4:19 PM 2-3 File Manager and Backup File Manager The File Manager is a rack-mountable, dual-processor computer running the Windows NT Workstation operating system. The File Manager maintains the storage location information for the drive set by caching a complete set of file system metadata in memory. To ensure the integrity of this metadata, the File Manager uses error-correcting (ECC) memory and periodically writes three complete copies of the metadata to multiple drives in the storage subsystem. The metadata is also written to the drive set when the File Manager service is shut down. In addition to the active File Manager, another computer can be set up as a second File Manager to automatically pick up for the active File Manager if it goes offline for any reason. MediaNet Clients A MediaNet workgroup supports up to 24 MediaNet clients. Clients may be Macintosh, Windows NT or Windows 2000 systems. MediaNet clients run a variety of Avid applications, collectively known as the Avid Composer Products software. Avid Composer Products software for Windows NT requires Windows NT Workstation Version 4.0 with Service Pack 5 or 6a. Avid Composer Products software for Windows 2000 requires Windows 2000 Professional with Service Pack 1. Macintosh clients have a greater variety of configurations than Windows clients. Each version of Avid Composer Products software has a specific Macintosh configuration that it runs on. These configurations use either a Power Macintosh® 9500, 9600, G3, or G4. Processor speeds and Mac OS versions are also dictated by the version of Avid Composer Products software you are running. File Manager and Backup File Manager System Overview.book Page 4 Monday, June 11, 2001 4:19 PM 2-4 For complete details on the Macintosh configuration requirements for each version of Avid Composer Products software, see the Avid Unity MediaNet Release Notes for the products you have. Fibre Channel Adapter Boards The File Manager and each MediaNet client are each equipped with a Fibre Channel adapter board to connect to the Fibre Channel network. The File Manager’s Fibre Channel adapter board allows it to connect to the storage subsystem, access the Fibre Channel drives, and manage and maintain the file system on the drives through the MEDIASwitch. The MediaNet clients’ adapter boards allows them access to the storage subsystem and the File Manager through the MEDIASwitch. MEDIASwitch The heart of a MediaNet workgroup is the MEDIASwitch. The switch allows you to connect the File Manager, multiple MediaNet clients, and up to ten drive enclosures (either individually or in groups of two to four daisy-chained enclosures) together. MEDIASwitches can have either eight ports or sixteen ports, and MediaNet workgroups can have one or two switches. Each MEDIASwitch isolates its ports, treating each port as an individual Fibre Channel Arbitrated Loop (FC-AL). This isolation localizes loop initialization events (adding or removing clients, or client restarts) to a particular port. This isolation also increases the stability of the Fibre Channel environment. MediaNet Hardware System Overview.book Page 5 Monday, June 11, 2001 4:19 PM 2-5 All of the connections and indicators are on the back of the MEDIASwitch. Figure 2-1 and Figure 2-2 show the back panel connectors and status indicators for the 8-port and 16-port MEDIASwitches, respectively. MGMT Act/Col 100 1 3 2 Power connector 4 6 5 RS232 8 Power and network indicators GBIC port Management connectors GBIC port status indicators Figure 2-1 7 8-Port MEDIASwitch MGMT Power connector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GBIC port RS232 Power and network indicators GBIC port status indicators Figure 2-2 Act/Col 100 Management connectors 16-Port MEDIASwitch Each MEDIASwitch port uses a Gigabit Interface Converter (GBIC) to connect either copper cable or optical cable to the MEDIASwitch (see Figure 2-3). The GBICs are removable so that your MEDIASwitch can be quickly reconfigured to support any combination of copper and optical cable connections. The front of the copper GBIC has a 9-pin connector. The front of the optical GBIC has two square connectors, one for the transmit cable and one for the receive cable. MEDIASwitch System Overview.book Page 6 Monday, June 11, 2001 4:19 PM 2-6 9-pin copper GBIC Figure 2-3 Optical GBIC Gigabit Interface Connectors MEDIArray Drive Enclosures The MEDIArray drive enclosures hold the drives in the MediaNet drive set. Each storage subsystem has at least one drive enclosure. You can connect up to ten drive enclosures together to expand the capacity of the storage subsystem. Each enclosure contains: • n MediaNet Hardware Up to ten drives. Drives can be reserved as spares to use for replacements if drive problems arise. • One link control card (LCC). The LCC supports and controls the Fibre Channel Arbitrated Loop (FC-AL), and monitors the enclosure environment. A second LCC is available, and may be required, to support some configurations. • Two power supplies. Each power supply can support a fully configured drive enclosure. The two power supplies provide automatic power redundancy should one of the power supplies fail. System Overview.book Page 7 Monday, June 11, 2001 4:19 PM 2-7 Figure 2-4 10-Slot Rack-Mount Drive Enclosure Keyboard/Monitor/Mouse Assembly (Optional) The keyboard/monitor/mouse assembly provides a convenient 1U keyboard, monitor, and mouse control for whichever computer is currently selected by the keyboard/video/mouse switch. This assembly eliminates the need for multiple keyboards, monitors, and mice and allows you to save on rack space. Keyboard/Video/Mouse Switch (Optional) The keyboard/video/mouse switch allows you to control the File Manager and any other computers racked with the File Manager using one keyboard, monitor, and mouse. You can switch from computer to computer using the touchpad on the front of the keyboard/video/ mouse switch or from a keyboard. Keyboard/Monitor/Mouse Assembly (Optional) System Overview.book Page 8 Monday, June 11, 2001 4:19 PM 2-8 Ethernet Hub (Optional) You use the Ethernet hub to connect the File Manager, the second File Manager, and the MEDIASwitch together. This allows you to manage the switches from either File Manager. The cables used are standard Category 5 Ethernet cables. Uninterruptible Power Supplies (Optional) Uninterruptible power supplies (UPSs) provide power protection when there is a brownout, a power dip or spike, or a power outage. They shut down the File Manager software and the MediaNet storage after approximately one minute of power interruption. n MediaNet Hardware Avid recommends the use of UPSs to protect the clients from potential data loss if a brownout or power outage occurs. UPSs must be purchased separately.
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