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  • Sachin Thapa 23:24 on February 21, 2015 Permalink | Reply
    Tags: netapp   

    Network Appliance (NetApp) Introduction 

    Network Appliance (NetApp)

    This section is short introduction into Network Appliance (NetApp), the company creates storage systems and management software associated with companies data. They offer products that cater for small, medium and large companies and can provide support.

    Other storage main vendors are

    • EMC
    • Hitachi Data Systems
    • HP
    • IBM

    (More …)

  • Sachin Thapa 23:22 on February 21, 2015 Permalink | Reply
    Tags: ,   

    EMC Client installation and checking 

    This post is a quick guide on what to install and how to check that EMC SAN is attached and working


    Install Emulex driver/firmware, san packages (SANinfo, HBAinfo, lputil), EMC powerpath
    Use lputil to update firmware
    Use lputil to disable boot bios
    Update /kernel/drv/lpfc.conf
    Update /kernel/drv/sd.conf
    Install ECC agent
    (More …)

  • Sachin Thapa 23:20 on February 21, 2015 Permalink | Reply
    Tags: ,   

    SRDF splitting 


    1. logon to emc server
    2. search for the host in question and the device group (in this case host4 device group Adat3)
       # symdg list

    (More …)

  • Sachin Thapa 23:19 on February 21, 2015 Permalink | Reply
    Tags: ,   

    Allocating, Unallocating Storage on a EMC SAN 

    This post details on how to add/remove and zone additional storage from a EMC SAN

    Adding Storage

    1. List all the available devices (hypers) on the EMC San# symdev -noport list

    Backup the VCM database

    1. symmaskdb backup

    2. Create a Meta volume

    1. cat metafile.cmd

    form meta from dev 4A4 config=striped, stripe_size = 2 cyl;
    add dev 4A5:4A7 to meta 4A4;

    3. preview, prepare and commit the changes

    1. symconfigure -f metafile.cmd preview -nop
    2. symconfigure -f metafile.cmd prepare -nop
    3. symconfigure -f metafile.cmd commit -nop

    Check the configuration

    1. symdev show 4A4

    4. Map meta volume to front-end directors

    1. cat mapfile.cmd

    map dev 4A4 to dir 4b:1 target=0, lun=5;
    map dev 4A4 to dir 13a:1 target=0, lun=5;

    5. preview, prepare and commit the changes

    1. symconfigure -f mapfile.cmd preview -nop
    2. symconfigure -f mapfile.cmd prepare -nop
    3. symconfigure -f mapfile.cmd commit -nop

    Check the configuration

    1. symdev -sa 4b -p 1 -fibre list
    2. symdev -sa 13a -p 1 -fibre list

    6. Mask the meta volume

    1. symmask -wwn <WWPN> -dir 13a -p 1 add devs 4A4
    2. symmask -wwn <WWPN> -dir 4a -p 1 add devs 4A4

    Note: the wwn are the WWPN’s of the host HBA’s which you obtain from the server.

    update the VCM database

    1. symmask refresh -nop

    (More …)

  • Sachin Thapa 23:17 on February 21, 2015 Permalink | Reply

    Emulex Firmware Upgrade (solaris) 

    You will require the following files before you begin the upgrade:

    • solaris-2.1a18-6.02f-1a.tar
    • lpfc-6.02f-sparc.tar
    • EmlxApps300a39-Solaris.tar

    (More …)

  • Sachin Thapa 23:15 on February 21, 2015 Permalink | Reply
    Tags: , SAN Architecture   

    SAN Architecture 

    This document will be using the EMC symmetrix configuration. There are a number of EMC Symmetrix configurations but they all use the same architecture as detailed below.

    Front End Director Ports (SA-16b:1)
    Front End Director (SA-16b)
    Back End Director (DA-02b)
    Back End Director Ports (DA-02b:c)
    Disk Devices

    Front End Director
    A channel director (front end director) is a card that connects a host to the symmetrix, each card can have upto four ports.

    Symmetrix cache memory buffers I/O transfers between the director channels and the storage devices. The cache is divided up into regions to eliminate contension. (More …)

  • Sachin Thapa 23:09 on February 21, 2015 Permalink | Reply

    Zoning Architecture 

    Zoning is switch function that allows devices within the fabric to be logically segmented into groups that can communicate with each other. When a device (host) logins into a fabric it is registered by the Name Server, it goes through a discovery process with other devices registered as SCSI FCP in the Name Server.

    A zone conists of a single HBA port and one or more storage ports. A collection of zones is called a zoneset A zoneset can be active or inactive but only one zoneset can be active at any one time within a switch. Remember a SAN port can be in multiple zones as many hosts will be sharing this port. A common way to setup zoning is to use the WWN of the attached hosts and ports but there are many ways:

    • The host HBA or Symmetrix port WWPN (recommended way) (WWN zoning)
    • The physical fabric port number that an N_Port is connected to (Port zoning)
    • Nicknames for all WWPN

    (More …)

  • Sachin Thapa 23:08 on February 21, 2015 Permalink | Reply

    SAN Switch cheat sheet 


    M-Series (Mcdata) switches uses both web and CLI, the table below displays some but not all the CLI commands.

    commadelim Toggle comma-demlimited display mode
    config configure settings
    login login into CLI with different access rights
    maint maintenance settings
    perf Performance statistics
    reserved reserved for future development
    show display attributes
    features configure feature settings
    ip configure IP settings
    logout logout of the CLI
    port configure port data
    security configure security settings
    snmp configure snmp
    switch configure switch data
    system configure system data
    zoning confgiure zoning settings

    There are several commands that allow you to navigate through the switch “..”, “ctrl-U” and “root” . (More …)

  • Sachin Thapa 23:07 on February 21, 2015 Permalink | Reply
    Tags: hba,   

    Host HBA installation and configuration 

    This post describes how to install a particular HBA on diffferent O/S.


    To display what HBA’s are installed

    • lscfg
    • lscfg -v -l fcs*

    To set the configuration you must carry out the following:

    • List HBA WWN and entry on system
    • Determine code level of OS and HBA
    • Download and install EMC ODM support fileset
    • run /usr/lpp/Symmetrix/bin/emc_cfgmgr (symmetrix) or /usr/lpp/emc/CLARiiON/bin/emc_cfgmgr (clariion)

    To discover the SAN devices

    • /usr/lpp/EMC/Symmetrix/bin/emc_cfgmgr -v if the above does not work reboot server


    To display what HBA’s are installed.

    • /opt/fcms/bin/fcmsutil /dev/td# (A5158A HBA)
    • /opt/fc/bin/fcutil /dev/fcs# (A6685A HBA)

    On a HP system there is no additional software to install. (More …)

  • Sachin Thapa 23:05 on February 21, 2015 Permalink | Reply
    Tags: , Navisphere,   

    Navisphere CLI cheat sheet 

    It is probably easier to use the Navisphere GUI to configure the Clariion but below are some of the CLI commands that can be used to configure the SAN. There is also a procedure generator which is very usefull called clarproc.exe which can be found on the http://www.emc.com web site

    (More …)

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