Distributed LAN | Quantum 3.5 manual

Chapter 4 Configuring StorNext

Windows Configuration Utilities

Distributed LAN

The Distributed LAN tab is used to enable and configure StorNext Distributed LAN (DLAN) Clients and Servers for a file system. The Enable Client and Enable Server radio buttons determine whether the system is a Client or Server. Note that separate licensing is required for DLAN.

StorNext Distributed LAN Clients provide the same functionality as normal StorNext Clients but do not need to be connected directly to the SAN. They instead send I/O via the TCP/IP network to a Distributed LAN Server; a normal SAN client with DLAN Server Selected in its configuration. Metadata is sent over the TCP/IP network directly to the File System Metadata Controller (Server/MDC).

Distributed LAN Clients request the location of normal DLAN Servers via the Name Server.

•Distributed LAN Server: A distributed LAN server has direct access to data disks (using fibre channel) and makes the shared storage pool available to distributed LAN clients over a network.

•Distributed LAN Client: A distributed LAN client does not have direct access to data disks and instead accesses the shared storage pool by connecting to a distributed LAN server over a network. (Distributed LAN clients have full StorNext client functionality.)

Note: A StorNext client configured as a distributed LAN server requires a dedicated system. Do not run other applications or services on a system configured as a distributed LAN server.

Use the Distributed LAN tab (figure 38) to configure a distributed LAN server or a distributed LAN client. Table 16 describes the fields on the Distributed LAN tab.

StorNext 3.5 Installation Guide

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Quantum 3.5 manual Distributed LAN

Contents

StorNext Copyright Statement Contents StorNext GUI Accessing the StorNext GUI Displaying the Configuration Wizard 111 106110 112 Viewing a Fibre Channel Device 124 125 Figures Figures 103 101102 104 Tables 105 146 Preface Audience Purpose Document Organization Notational Conventions Convention Example Related Documents Document No Document Title Document Description Online Service Support World Wide WebContacting Quantum North America 1Installing StorNext File System and Storage Manager Storage Manager System Requirements Operating System RequirementsHardware Requirements Operating System Kernel Platform File Systems Disk SpacePartitioning Local Hard Disks LAN Requirements Planning for LUNs Larger Getting Ready to InstallConfiguring Storage Devices Than 1 TB Operating Label for System LUNs 1 TB LUNs 1-2 TB LUNs 2 TB Vtoc Pre-Installation Script Before You BeginSupport Directory Description Running snPreInstall Pre-installation script runs figure Interpreting snPreInstall Output Type Description StorNext Installation Script Remove the existing rpms Installation script runs figure For Red Hat users only, before proceeding you must Changing Installation Configuration Options Menu Option Description Configuration Menu Changing Application Directory Locations Changing the Default Media Type Performing an Installation Operation 2Installing StorNext File System File System Requirements Windows Server Etc/hosts file Planning for LUNs Larger than 1 TB MacOS X Panthera Apple Xsan SVTOC Installing StorNext File System on Linux or Unix Installing the Linux Kernel Source CodeLaunching the Snfs Installation Script Ls -l Change installation options for the location Exit the Snfs installation scriptApplication directories see Changing Performing an Installation Operation Installing StorNext File System on Windows Disabling Automatic IP Address Configuration StorNext Installation window appears figure Removing a Previous Version of StorNext Running the Setup Wizard StorNext Installation Window Install StorNext Snfs Setup End User License Agreement Click an installation option Snfs Setup Choose Setup Type Restoring a Previous Client Configuration Snfs Setup Finish StorNext Installation Window Configure StorNext Click an option for handling current configuration settings Import/Export Client Configuration Window 3Installing the StorNext Client Client System Requirements Operating System Release or Kernel Platform Hardware Requirements StorNext File System Client Buffer Cache Downloading the StorNext Client Software Platform Type =2GB Memory For a MDC running Snfs only On the home page, click Select Platform window appears figure Download Client Software Window Installing the StorNext Client on Linux or Unix Installing the StorNext Client on Linux Mkdir -pmount point chmod 777 mount point Installing the StorNext Client on Sun Solaris File system mount point cvfs 0 auto rw Installing the StorNext Client on HP-UX Installing the StorNext Client on IBM AIX Mkdir -pmount point chmod 777 mount point Installing the StorNext Client on Windows StorNext Installation Window Remove StorNext Click Next to continue License Agreement window appears figure Snfs Setup Choose Setup Type Restoring a Previous Client Configuration StorNext Installation Window Configure StorNext Click an option for handling current configuration settings Configuring StorNext Accessing the StorNext StorNext GUI StorNext Home File System and Storage Manager Configuration Wizard StorNext Configuration Wizard File System Only Enter License Add File System Add Library Add Tape DriveAdd Media Add Storage Disks Add Storage PolicyMail Notification Configuring a Distributed LAN Client Server Distributed LAN server configuration utility appears figure Sndpscfg Configuration Utility Field / Button Description Creating an Override Configuration Using Distributed LAN Client and Server CommandsCommand Description Windows Configuration Utilities Client Configuration Mount Point Select the desired drive letter Select Map to Drive Letter to map the drive toSpecific drive letter Instead of selecting Map to Drive Letter, select Distributed LAN As a distributed LAN client or distributed Select this option to disable the StorNext clientSelect to configure the StorNext client as a LANserver Advanced Mount Options Default is off Soft Mount. Quantum Default isWhen this box is checked, the driver attempts Specify the number of times the driver will re Disks being accessible in the file system stripe When this box is checked, the file system canBe mounted and accessed without all Accessed Penalty value, where n is expressed When you choose Allow I/O Timouts, thisRequest in error, otherwise reset PathInError will be bypassed in favor Advanced Cache Options If Buffer Cache is disabled, the remaining When this box is not checked, the file systemDirectly into the applications memory using Will not buffer any data. All files will be read Default value is 16 buffers with a File system block size. The value default isDefault value is 1MB Maximum of 100. Using a value of 0 disables Circumstances where files are frequently Default values are 30 seconds for nonSetting these parameters lower will greatly Shared on the SAN, setting the Attribute Flush Disk Device Labeler On the Disk Labeler window, do one of the following Labeling Disks License Identifier Simple File System Configuration Do not write a label to the disk and proceed toClose the Disk Labeler dialog box Click to deselect all devices in the list Name used by clients when establishing aSwitching to the next disk in the stripe group Click to select all devices in the list Saved in the StorNext configuration directory Click to save the configuration usingCurrent settings. The configuration file is Configuration utility Configuring StorNext Windows Configuration Utilities Configurations is highest priority and 9 is Click to add a file system to the FSM servicesFSM services list Click to save changes to the FSM services list Click to quit the File System Startup List Utility without saving changes Server Administration File System Properties Stripe Group Properties Quota Properties Displays the percentage of the quota that has Type the name of the user or group to set aQuota for Been used Quality of Service Information Server ConfigurationClients Information Disk Types on Disk Definitions on Stripe Groups on Global Settings Allocate when a file is created Optional Select to send a warning when aUser attempts to access a file that is locked or When reading and storing files Disk Types Server Configuration Disk Types Disk Definitions Configured file system for I/O Select to enable the selected disk definitionWhen enabled, the defined disk is available to Click to create a new disk definition. Type a Click to delete the selected device name Stripe Groups Accesses the disk Select to enable the selected stripe groupWhen enabled, the stripe group is available to Using the Quality of Service QOS API Installing Promise RAID Controller Software Windows Boot Manager Screen Windows Boot Manager Screen StorNext 3.5 Installation Guide 109 Uninstalling StorNext Uninstalling StorNext on Unix and Linux Uninstalling Snsm Snfs Uninstalling the StorNext Client Software StorNext Remove Main Menu Uninstalling StorNext on Windows HP-UX StorNext Administration Tasks Sharing a Library Between Applications Vi mediafilelibraryname Manually Modifying Storage Manager Configuration Fssysparmoverride Configuration File StorNext 3.5 Installation Guide 117 Connecting to a StorNext Network Using Xsan Mounting Snfs on the OSx Computer StorNext 3.5 Installation Guide 119 Creating the automount.plist File Mounting Snfs on the Mac OS X Computer Plist StorNext 3.5 Installation Guide 123 Viewing a Fibre Channel Device StorNext Log Rolling Administration Changing Log Rolling TimesLog Rolling Options Modified find command looks like this Avoiding Poor System Performance StorNext Files Example.cfg File Appendix C StorNext Files Page Page Page Page Page Cluster-Wide Central Control Cluster-Wide Control File Example Page # Snfsall Commonly Used Snfs Files Cvlog debug and runtime messages Usr/cvfs/docs Cvapi.c a sample API application Quality of Service Guide Overview Active vs. Passive Supported Platforms Configuration Non-Realtime OperationUnit of I/O Converting MB/sec to I/O/ sec Name Description Default Rtio Upper Bound Reserve Token Timeouts Real-time I/O SetRtio Oversubscription Handles Ungated files Non-Realtime I/O Configuration Calculating AvailableAll internal calculations are done in terms of I/O/sec Configuration File Examples Host bw-type sg=yy,sg=yy Callbacks Issued and return to the previous state Above diagram, a process on client a requests some amountStripe group back to non-real-time mode Client in Step Situation arises it can be detected Stripe group is back in non-real-time mode, Client a requests some amount of Rtio as in Figure Be back in its original state StorNext 3.5 Installation Guide 157 Client C with the new token in Step , assume the stripe group is already in real-time mode as aTime I/O token in . The FSM calls back to Clients B and D Failure Semantics FSM Failures Client Failures Client Token Releases MonitoringReal-time I/O available Send out callbacks to other clients Sharing Disk Resources