Data ONTAP 7.3 System Administration Guide

• Copyright information
• Trademark information
• About this guide
• Audience
• Terminology
• FilerView as an alternative to the command-line interface
• Command, keyboard, and typographic conventions
• Special messages
• Introduction to NetApp storage
• Components of a storage system
  • Internal components
  • Slots and ports
  • Disk shelves and disks
• Data ONTAP features
  • Network file service
  • Multiprotocol file and block sharing
  • Data storage management
  • Data organization management
  • Data access management
  • Data migration management
  • Data protection
  • System management
  • AutoSupport
• How to interface with Data ONTAP
• Methods for administering a storage system
• Data ONTAP command line interface
  • Using the history feature
  • Using the command-line editor
  • Online command-line help
  • Command line man pages
• Data ONTAP commands at different privilege levels
  • How different privilege settings apply to different sessions
  • Initial privilege level
  • Setting the privilege level
• How to access the storage system
• Methods for accessing a storage system
  • Methods for administering the system (no licenses are required)
  • Methods for storing and retrieving data (licenses are required)
  • Sharing a console session
  • Rules that apply to console, Telnet, and SSH-interactive sessions
  • The e0M interface
    • Using the e0M interface to perform a Data ONTAP management task
    • How the e0M interface and the RLM differ
• Methods for accessing a storage system from the console
  • Using the serial port to access the storage system
  • Using the RLM or the BMC to remotely access the system console
• Telnet sessions and storage system access
  • Starting a Telnet session
  • Terminating a Telnet session
  • Configuration for Telnet sessions
    • Banner message configuration
    • Configuring and changing the timeout period
    • Enabling or disabling the timeout period
• How to access a storage system using a Remote Shell connection
  • When to use the rsh command with user names and passwords
  • Format for rsh commands with user name and password
  • Commands not accepted from rsh
  • Accessing a storage system from a UNIX client by using an rsh command
  • Accessing a storage system from a Windows client by using a Remote Shell application
  • How to reset options to default values from rsh
  • Displaying rsh session information
• How to access a storage system using FilerView
  • Accessing a storage system from a client by using FilerView
  • The FilerView interface
  • Selecting a function or wizard
  • Viewing the real-time displays
  • Changing the system configuration
  • Using the Help buttons
  • Read-only access to FilerView
• How to manage access from administration hosts
  • Reasons to designate a workstation as an administrative host
  • Administration host privileges
  • Requirements for using a client
  • How to specify administration hosts
  • Adding administration hosts
  • Removing administration hosts
• Methods for controlling storage system access
  • Controlling Telnet access using host names
  • Controlling Telnet access using host names, IP addresses, and network interface names
  • Controlling Remote Shell access
  • Controlling mount privilege
  • Controlling file ownership change privileges
  • Controlling anonymous CIFS share lookups
  • Options that help maintain security
• The root volume
• Root volume recommendations
• Size requirement for root FlexVol volumes
• Default directories in the root volume
  • Permissions for the default directories
  • The /etc directory
    • The configuration files
      • How you edit configuration files
        • Enabling an NFS client to edit configuration files
        • Editing configuration files from a CIFS client
    • The /etc/messages file
    • The /etc/usermap.cfg file and the /etc/quotas file
• How to access the default directories on the storage system
  • Accessing the /etc directory from an NFS client
  • Accessing the /etc directory from a CIFS client
  • Accessing the /etc directory with FTP
  • Accessing the home directory from an NFS client
  • Accessing the home directory from a CIFS client
  • Accessing the home directory with FTP
  • Accessing log files using HTTP
• Changing the root volume
• How to start and stop the storage system
• How to boot the storage system
  • Ways to boot the storage system
  • Booting the storage system at the storage system prompt
  • Booting Data ONTAP at the boot environment prompt
  • Booting Data ONTAP remotely
  • Recovering from a corrupted CompactFlash image
  • Checking available Data ONTAP versions
  • Starting storage system through the netboot option
• How to use storage systems as netboot servers
  • Configuring HTTP services
  • Configuring TFTP services
  • Specifying the TFTP root directory
  • Enabling console logging of TFTP accessed files
• About rebooting the storage system
  • Rebooting the storage system from the system console
  • Rebooting the storage system remotely
• Halting the storage system
• How to manage administrator access
• Reasons for creating administrator accounts
  • What users, groups, roles, and capabilities are
  • How users are assigned capabilities
  • Requirements for naming users, groups and roles
  • Windows special groups
  • About changing capabilities of other groups and roles
• Root access to the storage system
  • Disabling root access to the storage system
  • Displaying the status of root access
• How to manage users
  • Creating users and assigning them to groups
  • Granting access to Windows domain users
  • How to grant permissions for MMC
  • About changing another user's capabilities
• How to manage groups
  • Predefined groups
  • Assigning roles to groups by creating or modifying a group
  • Renaming a group
  • Loading groups from the lclgroups.cfg file
• How to manage roles
  • Predefined roles
  • Supported capability types
  • Creating a new role and assigning capabilities to roles
  • Modifying an existing role or its capabilities
• Users, groups, and roles
  • Commands that list users, domainusers, groups, or roles
  • Commands that delete users, domainusers, groups, or roles
• Administrative user creation examples
  • Example creation of a user with custom capabilities
  • Example creation of a user with no administrative capabilities
• How to manage passwords for security
  • Changing the storage system password
  • Changing a local user account password
  • Options that manage password rules
• General System Maintenance
• Aggregate Snapshot copy management
  • How to create aggregate Snapshot copies
  • Aggregate Snapshot reserve
  • Automatic aggregate Snapshot copy deletion
  • Disabling automatic aggregate Snapshot copy creation
• Ways to manage licenses
  • Adding a license
  • Displaying current license codes
  • Disabling a license
• Setting the system date and time
• Synchronizing the system time
  • The timed options
• Displaying and setting the system time zone
• Core files
  • Core dump writing
  • Automatic technical support notification upon system reboots
• Message logging
  • The /etc/syslog.conf file
  • Sample /etc/syslog.conf file
  • Configuring message logging
• Audit logging
  • Configuring audit logging
  • Enabling or disabling read-only API auditing
• Startup configuration for the storage system
  • About the /etc/rc file
    • Sample /etc/rc file
  • Editing the /etc/rc file
  • Recovering from /etc/rc errors
• Storage system configuration backup and cloning
  • Backing up a storage system configuration
  • Cloning a storage system configuration
  • Restoring a storage system configuration
  • Comparing storage system configurations and backup configuration files
• About writing and reading files on the storage system
  • Writing a WAFL file
  • Reading a WAFL file
• UPS management
  • The UPS shutdown options
  • The UPS shutdown process
  • Factors that might influence UPS shutdown event timing for your environment
• The AutoSupport tool
• The AutoSupport feature
  • AutoSupport transport protocols
• AutoSupport options
• Configuring AutoSupport
• Testing AutoSupport
• AutoSupport troubleshooting tasks
  • Troubleshooting AutoSupport over HTTP or HTTPS
  • Troubleshooting AutoSupport over SMTP
  • Keeping the size of AutoSupport messages down
• AutoSupport messages
  • Getting AutoSupport message descriptions
  • Contents of AutoSupport event messages and weekly reports
  • Command output provided by the AutoSupport message
• SecureAdmin
• How the SSH protocol improves security
• Ways to manage SSH for SecureAdmin
  • Setting up and starting SSH
  • Reinitializing SSH
  • Disabling or enabling SSH service
  • Public-key-based authentication
    • Generating an RSA key pair for SSH 1.x
    • Generating key pairs for SSH 2.0
    • Editing public keys generated by SecureCRT and ssh.com clients
• How the SSL protocol improves security
• Ways to manage SSL for SecureAdmin
  • Setting up and starting SSL
  • Installing a certificate-authority-signed certificate
  • Testing certificates
  • Reinitializing SSL
  • Disabling or enabling SSL
• Enabling or disabling both protocols used by SecureAdmin
• Determining whether SecureAdmin is running
• How to use the RLM or the BMC to manage Data ONTAP remotely
• The Remote LAN Module
  • What the RLM does
  • Ways to configure the RLM
    • Prerequisites for configuring the RLM
    • Configuring the RLM at power-up or with the setup command
    • Configuring the RLM with the rlm setup command
  • How to manage the RLM with Data ONTAP
    • Data ONTAP commands for the RLM
    • RLM and AutoSupport options
    • RLM and SNMP options
      • Changing SNMP options for Data ONTAP and the RLM
      • Changing SNMP options for only the RLM
  • How to log in to the RLM
    • Prerequisite for logging in to the RLM
    • RLM access using "naroot"
    • Logging in to the RLM from a UNIX host
    • Logging in to the RLM from a Windows host
    • RLM CLI sessions
    • RLM CLI and system console sessions
    • Concurrent SSH sessions
  • How to manage the storage system with the RLM
    • Online help at the RLM CLI
    • What you can do in RLM admin mode
      • RLM admin mode command syntax summary
    • What you can display in RLM advanced mode
    • Connecting to the storage system console from the RLM
    • Controlling storage system power from the RLM
  • How to display information about the storage system and the RLM
    • RLM CLI commands that display real-time information
    • How to monitor the storage system during a power cycle
    • System Event Log and the RLM
    • Console log and the RLM
    • AutoSupport messages for systems with RLM
  • Comparison of Data ONTAP and RLM commands
  • How to troubleshoot the storage system with the RLM
  • How to update the RLM firmware
  • How to troubleshoot RLM problems
    • Troubleshooting RLM communication problems
    • Troubleshooting RLM configuration problems
    • Troubleshooting RLM connection problems
    • Troubleshooting RLM hardware failures
    • RLM firmware update problems
      • Troubleshooting RLM firmware update problems with the Data ONTAP CLI
      • Troubleshooting RLM firmware update problems with the RLM CLI
• The Baseboard Management Controller
  • What the BMC does
  • Ways to configure the BMC
    • Prerequisites for configuring the BMC
    • Configuring the BMC at power-up or with the setup command
    • Configuring the BMC with the bmc setup command
  • How to manage the BMC with Data ONTAP
    • Data ONTAP commands for the BMC
    • BMC and AutoSupport options
  • How to log in to the BMC
    • Prerequisite for logging in to the BMC
    • Accessing the BMC from a console
    • Logging in to the BMC from a UNIX host
    • Logging in to the BMC from a Windows host
    • BMC CLI sessions
    • BMC CLI and system console sessions
  • How to manage the storage system with the BMC
    • Online help at the BMC CLI
    • What you can do in BMC admin mode
      • BMC admin mode command syntax summary
    • What you can display in BMC advanced mode
    • Connecting to the storage system console from the BMC
    • Managing the controller module power of the storage system from the BMC
  • How to display information about the storage system and the BMC
    • BMC CLI commands that display real-time information
    • System Event Log and the BMC
    • System console log and the BMC
    • AutoSupport messages for systems with BMC
  • Comparison of Data ONTAP and BMC commands
  • How to troubleshoot the storage system with the BMC
  • How to update the BMC firmware
  • How to troubleshoot BMC problems
    • Troubleshooting BMC communication problems
    • Troubleshooting BMC configuration problems
    • Troubleshooting BMC connection problems
    • Troubleshooting BMC hardware failures
    • Troubleshooting BMC firmware update problems
• System Information
• Getting storage system configuration information
• Getting storage information
• Getting aggregate information
• Getting volume information
• Getting a file statistics summary
  • Example of the filestats command with no options specified
  • Examples of the filestats command with ages option specified
  • Example of the filestats command with sizes option specified
  • Example of using the filestats command to determine volume capacity
• Storage system environment information
  • Getting environmental status information
  • Specifying a UPS device to be monitored
  • Enabling or disabling monitoring of UPS devices
• Getting Fibre Channel information
• Getting SAS adapter and expander information
• Storage system information and the stats command
  • Viewing the list of available counters
  • Getting detailed information about a counter
  • Using the stats command interactively in singleton mode
  • Using the stats command interactively in repeat mode
  • Collecting system information by using the stats command in background mode
  • Changing the output of a stats command
  • About the stats preset files
    • Viewing the list of available presets
• How to get system information using perfmon
• How to get system information using perfstat
• System performance and resources
• How to manage storage system resources by using FlexShare
  • When to use FlexShare
    • FlexShare and priority levels
    • About using FlexShare in active/active storage systems
    • How the default queue works
    • FlexShare and the global io_concurrency option
  • How to use FlexShare
    • Assigning priority to a volume relative to other volumes
    • Assigning priority to system operations relative to user operations
    • FlexShare and the buffer cache policy values
    • Setting the volume buffer cache policy
    • Removing FlexShare priority from a volume
    • Modifying the default priority
• How to increase WAFL cache memory by using FlexScale
  • FlexScale limits
  • Enabling and disabling FlexScale
  • Caching normal user data blocks
  • Caching low-priority user data blocks
  • Caching only system metadata
  • Integrating FlexShare buffer cache policies with FlexScale cache options
  • Displaying FlexScale configuration
  • Displaying FlexScale usage and access information
• Ways to improve storage system performance
  • About balancing NFS traffic on network interfaces
  • How to ensure reliable NFS traffic by using TCP
  • Avoiding access time update for inodes
  • Improving read-ahead performance
  • Adding disks to a disk-bound aggregate
  • About sizing aggregates appropriately
  • About putting cards into the correct slots
  • Maintaining adequate free blocks and free inodes
  • About optimizing LUN, file, and volume layout
  • Using oplocks for CIFS storage systems
  • Increasing the TCP window size for CIFS
  • About backing up by using qtrees
• How to optimize LUN, file, volume, and aggregate layout
  • What a reallocation scan is
  • Reasons to use LUN, file, or volume reallocation scans
  • Reasons to use aggregate reallocation scans
  • Reasons to use physical reallocation scans
  • How a reallocation scan works
  • How you manage reallocation scans
    • Enabling reallocation scans
    • Defining a LUN, file, or volume reallocation scan
    • Defining an aggregate reallocation scan
    • Creating a reallocation scan schedule
    • Deleting a reallocation scan schedule
    • Starting a one-time reallocation scan
    • Performing a full reallocation scan of a LUN, file, or volume
    • Performing a measure-only reallocation scan of a LUN or volume
    • Quiescing a reallocation scan
    • Restarting a reallocation scan
    • Displaying the status of a scan
    • Deleting a reallocation scan
    • Disabling reallocation scans
  • How to use reallocation scans most efficiently
• How to improve Microsoft Exchange read performance
  • When to enable logical extents
  • Enabling and disabling logical extents
• Troubleshooting tools
• Storage system panics
  • Reacting to storage system panics
• Error messages
  • Using the Syslog Translator to get more information about error messages
  • Accessing the Syslog Translator using FilerView
• How to use the NOW site for help with errors
• How to use RLM or BMC to troubleshoot
• Glossary