Extron electronic 68-1998-01 REV. C Transport Protocols Used for Streaming, About RAID5 Storage

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About RAID5 Storage

RAID storage is a system which allows hard drives to be linked together to form a single large capacity storage device that offers superior performance, storage capacity, and reliability over other storage solutions.

The VNM Recorder uses RAID5 storage. RAID5 storage provides the following advantages. zz Increased storage performance.

zz Full data redundancy which allows for data backup in the event of a hard drive failure.

zz A hard drive is set aside as a hot spare drive which is used to automatically rebuild the data of a failed drive and allow the system to recover.

Transport Protocols Used for Streaming

The source data from a VN-Matrix encoder can be distributed to multiple displays/decoders (one-to-many) or to a single display/decoder (point-to-point). A previously recorded stream can be distributed in the same way and may be thought of as an encoder in this context.

A stream may be transported from the source (encoder, recorded stream) to the display (decoder) using one of three methods:

zz Multicast Real-time Transport Protocol (RTP)

zz Unicast Real-time Transport Protocol (RTP)

zz Unicast Transmission Control Protocol (TCP)

By default, the VNM Recorder provides a choice of unicast RTP or unicast TCP transport protocols. A multicast transport protocol may be configured if required (see Multicast Enable on page 40 of the Config Page section).

NOTES:
•	During playback of a recorded stream, the default transport protocol used is unicast
	RTP.
•	When a stream is recording, the VNM Recorder may be considered as a display
	(decoder) device.

VNM Recorder • Introduction

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Contents User Guide Safety Instructions FCC Class a Notice Specifications AvailabilityConventions Used in this Guide Contents Reference Information About the VNM Recorder About this GuideOverview of Stream Playback Overview of Recorded StreamsTransport Protocols Used for Streaming About RAID5 StorageDecoder device Multicast RTP Streaming Multicast RTP An OverviewUnicast RTP Streaming Unicast RTP An OverviewUnicast TCP Streaming Unicast TCP An OverviewDefinitions FeaturesInstallation Overview Front Panel FeaturesPanels Cabling Status LED Icons Parallel/Printer connector not used Rear Panel FeaturesPin connector not active/used Setup Overview Configuration Hardware SetupVNM Recorder Login Screen VNM Recorder Power Up ProcedureLogin Information To change the administrator passwordTo add or change usernames and passwords Using the Front Panel VNM Recorder Power Down ProcedureIf the VNM Recorder is not logged into If the VNM Recorder is logged intoFrom the login screen Using the Keyboard and MouseChoosing the Controller Device From the Linux desktopConfiguring the VNM Recorder Default Network SettingsConfiguring the Network and IP Address Settings Ethernet Device Window Confirm Settings Window Stage 2 Setting the controller IP address Config.xml Text Window Stage 3 Restart the VNM Recorder Configuring the VN-Matrix Encoders and DecodersOverview of the Web-based User Interface About Web-basedController Login Accessing the Web-based User InterfaceDevice List Web-based User Interface Control OptionsFive channel VNM Recorder Device ListThat the current and persistent databases remain up-to-date Recorder Device Recorder DeviceVNM Recorder RecorderChannel contains the following parameters Navigate NavigateTo be deleted Make Directory Use this field to add a new directory Player PlayerStop Pause Play Bookmark Selecting a recording for replayConfig Config Advanced ConfigurationZz Playback Finish This is automatically filled in when FEC Forward Error Correction panel Currently not supported Accounts AccountsVN-Matrix Encoder and Decoder Configuration Clock ManagementController Licensing Overview About the Content DirectoryNavigate Page Content Directory Content Directory BasicsSetting a Stream Storage Location Creating a DirectoryFolder Icon Loading Icon Alert Icon Navigate Page Multiple Element Recording Understanding Saved Recordings With Multiple ElementsDeleting a Stream or Directory Renaming a Stream or DirectoryInitial Setup and Configuration Setting up a VN-Matrix Codec as a DecoderRecording Playing Streams Setting up a VN-Matrix Codec as an Encoder Switching a Codec between Encoder and Decoder Recording a StreamRecording Preparation Stop Recording Initialize RecordingPlayback Preparation Playing a Recorded StreamPause Playback Initialize PlaybackStop Playback Start and Finish TimesFile Structure Using BookmarksPlayback of Bookmarked Streams Deleting BookmarksAbout Alarms Filter Settings AlarmsAlarm Severity Alarm TypeApplying Alarm Filter Settings Alarm Severity DescriptionAlarms Page Alarm List Sorting Alarm ListAlarm Logs Alarm LogsAlarm Reference Tables Alarm Type Description EncoderAlarm Type Description Action Default Settings Alarm Type Description System Controller Alarm Type Description DecoderInformation Included PartsPart Number Firmware Updates Guest username matrixrec Guest password matrixPreparing the Firmware Gathering Firmware Installation Information Config.xml and Admin.xml Text Files Installing the FirmwareFirmware Installation Table below Terminal window. Manually close the terminal window Microsoft Internet Explorer version 7 or above Browser ConfigurationPer Site Internet Options Custom Level Security Options Cookie Preferences Mozilla Firefox version 1.3 or aboveRack Installation Tower InstallationMounting UL Guidelines for Rack MountingIdentifying the Sections of the Rack Rails Rack MountingPreparing to Install the Rails Installing the VNM Recorder into a Rack USA, Canada, South America Central America Japan Europe and Africa ChinaAsia Middle East