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Cambex Bus Adapter Installation And User Manual

Manual is about: Cambex User Guide Bus Adapter

Summary of Bus Adapter

  • Page 1

    Dynamic path failover driver for aix fibrequik host bus adapter installation and user guide cambex corporation 115 flanders road westborough, ma 01581 customer support support@cambex.Com document: 081-468-025 date: 04/21/10 rev.: k.

  • Page 3: Table of Contents

    Table of contents dynamic path failover for aix ................................................ 3 introduction............................................................................................ 3 san management...................................................................................

  • Page 4

    Declaration of conformity .................................................... 33 warning................................................................................................ 33 safety notices ................................................................................... 34 fcc warni...

  • Page 5: Introduction

    Dynamic path failover for aix introduction the cambex fibrequik ™ fibre channel host bus adapters provide attachment of fibre channel devices to pci or micro channel based servers. They support the scsi-fcp protocol. When used with the cambex dpf (dynamic path failover) software, two adapters in a s...

  • Page 6: San Management

    San management san management is the top layer. It is responsible for assigning the required access for each server to each storage device. The unit of storage is the lun (logical unit number) which acts the same as a single disk directly attached to the server. In reality, a lun is made up of porti...

  • Page 7: Scsi and Fcp Drivers

    Communicating via a network connection to each managed device. The cambex dynamic path failover driver is a path management component that allows multiple paths to a storage device and provides automatic failover between available paths. Cambex dynamic path failover software provides both a command ...

  • Page 8: How Preferred Paths Work

    How preferred paths work the basic idea of multipathing is fairly simple. Access a disk on one of two paths. If the path fails, move i/o activity to the other path. We build on that basis by adding more factors into the configuration and seeing what effect they have. A path is defined as an end-to-e...

  • Page 9: Multiple Hosts

    And set up preferences so that the remaining paths to the same controller are preferred over paths to the alternate controller. Example 1) suppose we have two hbas, a switch, and two raid controllers. A total of four cables, and four paths to each lun (2 hbas x 2 raid controllers). We use the raid c...

  • Page 10

    Are accessed by different hosts, we could have the problem of "thrashing". One host tries to move the lun group to preferred controller a while the other host tries to move the group to preferred controller b. Anti-thrashing code prevents this problem in the multipathing software. 8.

  • Page 11: Adapter Specifications

    Adapter specifications pc2000lc-hpsp pc2000lc-a pc4000 (single port) pc4002 (dual port) bus pci pci-x 2.0 data rate (each dir.) 100/200 100/200/400 mb/s pc4000e (single port) pc4002e (dual port) bus pci-e x4 data rate (each dir.) 100/200/400 mb/s cable length - copper 30 - multimode optical 500 70 m...

  • Page 12

    Software and hardware installation driver installation (command line) it is recommended that the drivers be installed prior to installing the hbas. The examples assume that the driver cd is mounted at /mnt and that you are installing on aix 5.1. The name and revision level of the uninstalled driver ...

  • Page 13

    The new driver may be installed on the system with the command: installp -acd all where is as described above. Example: installp -acd /mnt/aix6.1 all after installing the driver, see the readme file for additional information and release notes. /usr/lpp/cbxfc/read_me /usr/lpp/pc4000/read_me /usr/lpp...

  • Page 14: Driver Installation (Smit)

    Driver installation (smit) the smit path is software installation and maintenance install and update software install and update software by package name for item " input device / directory" use /mnt/aix6.1 or the directory where the image files are located. A list should pop up with the name of the...

  • Page 15: Hardware Installation

    Hardware installation power down the system and install the adapter in a free slot. The pci cards may be installed in either 32 or 64-bit pci card slots, however the 32-bit slots may limit performance at high data rates. Make sure that any cables do not block airflow to the card. Observe proper stat...

  • Page 16: Autorecover

    Autorecover cbxdpfar, the autorecover daemon, is automatically installed and enabled when the dpf driver is installed. Control of the daemon is done using src. Stopsrc -s cbxdpfar stops autorecover startsrc -s cbxdpfar starts autorecover autorecover works by periodically polling the standby paths to...

  • Page 17: Aix Configuration

    Aix configuration during power-up initialization, aix will find and configure the new adapter(s) and any supported devices using the driver's configuration method. Devices are assigned a scsi id as they are discovered starting with 0. Scsi id is not related to loop id, port id or to scsi id assignme...

  • Page 18: Persistent Bindings

    Persistent bindings persistent bindings is the term used to indicate the mapping of scsi id to fc worldwide name (wwn). By keeping a persistent binding, the loop id or port id of a device may change and the device will still be properly addressed. In the cambex aix driver, persistent binding is auto...

  • Page 19: Smit Commands

    Smit commands commands the adapter management commands available in smit are in the devices menu under cambex fibre channel adapter: list all cambex fc adapters this provides the name and location of each adapter. Change / show characteristics of a cambex fc adapter allows the user to display and mo...

  • Page 20: Generate Error Report

    Sw_fc_class (3) fibre channel class. Devtype_exclude ( ) list of scsi device types to ignore during configuration. For example, specifying "1,5" would exclude both tape and cd devices. Attributes only used in loop mode include: id (0) default l_id for adapter. See table of l_id to alpa. Login_on_lip...

  • Page 21: Trace Cambex Dynamic Paths

    The autorecover daemon will automatically move operation to preferred paths. The preferred path is the combination of path preference values for hba, device and path. For some arrays, target device preference is read automatically from the array at configuration time. Consult the array user manuals ...

  • Page 22: How to Set Path Preferences

    For use until the purchased license is received. Issue the commands: cd /usr/lpp/cbxdpf mv license.30day license cfgmgr licenses for oem versions of the driver are obtained from the storage vendor who provided the software. The generic version of dpf purchased from cambex is licensed for use only on...

  • Page 23

    • failed or offline status is considered first. A path will not be used if failed or offline. • anti-thrashing prevents paths to the wrong controller from causing thrashing. • hba preference - normally all hbas have equal preference to paths. To block an hba from using a path, do: command line: dpfu...

  • Page 24: Troubleshooting

    Troubleshooting use the errpt command to identify the cause of failure. The lsdev command will provide the location of the component. For example, if errpt identifies a loose cable on device hdisk1, lsdev will give an address similar to: hdisk1 available 00-02-01 cambex scsi... And lsattr -el hdisk1...

  • Page 25

    Checklist for driver and hba installation the following commands may be used to isolate problems during installation of the fibre channel driver and card. Type the command shown in bold and verify the output. Lslpp -l pc1000.Driver.Obj must give: fileset path: /usr/lib/objrepos pc1000.Driver.Obj lev...

  • Page 26

    Cfgmgr -v >/tmp/cfg.Log 2>&1 should identify the card and configure it. If cfg.Log contains the id 7710002x and no driver is found, then the adapter driver is not installed. During boot, the number displayed when configuring the adapter is hex 0x911 (fc adapter). /usr/lpp/cbxfc/mbtest fscsi1 this te...

  • Page 27

    The message no failover devices available indicates that the attached storage is not yet recognized by the dpf driver. This could mean that a platform kit needs to be installed for your storage or that the storage is not yet configured. /usr/lpp/cbxfc/runtrace this should be run to start a trace if ...

  • Page 28: Error Messages

    Error messages various errors and notifications will be placed in the aix error log. These can be read using the errpt command, or automatic notification may be set up. Dpf_failover this indicates that the active path to a device has failed, and that dpf successfully transferred i/o to an alternate ...

  • Page 29: Upgrading The Driver

    Upgrading the driver when upgrading to a newer version of the driver there are two methods: 1) use rmdev to remove all dependent devices, remove the existing driver(s), then install the new driver(s) and run cfgmgr to recreate the devices. This method allows a new driver to be installed without rebo...

  • Page 30: Appendix A

    Appendix a identifying fibre channel components copper de9 gbic copper de9 cable 28.

  • Page 31

    Copper hssdc cable duplex sc optical gbic 29.

  • Page 32

    Small form factor (sff) optical lc cable 30

  • Page 33: Pc2000 Led Meanings

    Pc2000 led meanings top led – transceiver hardware is detecting a signal. Middle led – firmware is being synchronized. Bottom led – flashing amber when not synchronized. Led norm bad cable no conn top green green off middle green off off bottom off flashing flashing 31.

  • Page 34: Pc4000 Led Meanings

    Pc4000 led meanings y g a y g a off off off no power on on on power applied flash flash flash initializing * off off on/flash 1g (flash indicates active) off on/flash off 2g (flash indicates active) on/flash off off 4g (flash indicates active) ∗ flashing in unison indicates initialized, while altern...

  • Page 35: Declaration of Conformity

    Declaration of conformity we cambex corporation of westborough, massachusetts, usa, declare under our sole responsibility, that the products pc2000lc-hpsp, pc2000lc-a, and pc4000 are in conformity with the following standards: en 55022:1994/a1:1995/a2:1997 class a ite emissions requirements en 50082...

  • Page 36: Safety Notices

    Safety notices fcc warning this equipment has been tested and found to comply with the limits for a class a computing device pursuant to part 15 of fcc rules which are designed to provide reasonable protection against interference when operating in a commercial environment. This equipment generates,...

  • Page 37

    Dynamic path failover license agreement cambex dynamic path failover (the software) is a licensed product. The user must consent to the provisions of this license agreement in order to use the software. Use of the software beyond the number of purchased licenses is prohibited. The user may not cause...