Displaying the Channel Paths for a CDS Type

In this example, the channel paths for the CFRM couple data sets are displayed.

Enter C before CFRM on the initial INGPLEX CDS command dialog panel and press Enter. The CFRM Channel Path Information panel is displayed.

  • The System column shows the name of the sysplex members.
  • The T column (for 'type') indicates whether the CDS is the primary (value 'P') or alternate (value 'A').
  • The DEVN displays the number of the device that the CDS resides on.
  • The CHPIDs column shows the status of the paths to the devices in the format chpid=status_code. The codes are those of the operating system. They have the following meaning:
    +
    The path is logically and physically available and I/O on the path was successful.
    *
    The path is physically, but not logically available. The subchannel's logical path indicator is off but I/O to the path is successful. You can use the command VARY PATH (ddd,nn),ONLINE to make channel path nn logically available to device ddd.
    –
    The path is neither logically nor physically available. The subchannel's logical and physical indicators are both off for this channel path. You can use the command CONFIG CHP(nn),ONLINE to make the channel path logically available to all devices connected to the channel.
    &
    The device is reserved to another path. This indicator applies to devices with the dynamic pathing selection feature.
    <
    The path is installed but not physically available. The start subchannel request received a condition code of 3.
    >
    The device microcode has detected an error and will not allow I/O to complete on the path.
    B
    The path is unable to communicate. The device indicates that a busy or reserve condition exists on the path.
    C
    A controller error occurred while accessing the device.
    D
    A device error occurred while accessing the device.
    I
    Intervention is required; the device is not ready.
    R
    The path is available and the device is reserved to this path/group. This only applies to devices with the dynamic pathing feature.
    T
    A time out has occurred; there is no response from the device. The cause of the time out is undetermined and this condition is transient.
    U
    A storage control unit or storage director error occurred while accessing the device.
    X
    Unable to determine the failing unit.
  • The SSID field displays the storage subsystem that the device belongs to.