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v The client (PC) also allows multiple local console connections but allows only one local console directly
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attached to the server configuration (or local console directly attached to the server with remote access
allowed) for a single PC.
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v There is a maximum of 26 emulator sessions available per PC.
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v IBM recommends that you not put your console on the same IOP as storage devices.
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– There may be configurations when this cannot be avoided.
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– During very heavy usage of storage devices the console may appear to stop working temporarily
but should resume operation shortly. If the console is placed on the same IOP as storage devices it is
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highly recommended that you enable the new console option, Allow console to be taken over by
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another console.
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The following information pertains to console takeover and recovery:
New for V5R3 is a special set of functions that allows a LAN-connected Operations Console to take
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control from another console device. Use the following information to help determine what console
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devices are best for your work environment and how to deploy these devices to take advantage of the
new functions.
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v Takeover is the process used for a LAN-connected console device to take control from the current
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console device. The user signed on to the PC that wishes to take control requires special authority and
is initiating the takeover from a new menu. This takeover function is not used for directly attached
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consoles.
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v Recovery is the process of regaining control of the job running on the console after a problem with the
console was encountered. The recovery process may be to the same console device or a different
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console device and may be facilitated by additional work to enable a device using a different
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connectivity, except twinax.
When the takeover option is enabled and the device is properly connected, each console capable device
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running 5250 emulation, regardless of connectivity, will be presented a screen of data regardless of
whether or not it is the active console. Starting with V5R3, more than one device will have data on the
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screen after the console has been established. There will be no more blank console screens showing
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Disconnected when initially connecting a device. The new function now allows the job at the console to
be transferred to another device without causing loss of data.
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This function is accomplished by suspending the data stream to a console that loses a connection or is
being taken over, save further data and then send that data to the next device to become the console,
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even if the device is the same former console. Recoverability is essentially taking over the console from
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the same or different qualified device regardless of what the former console was doing.
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For more detailed information, see Take over or recover an Operations Console connection.
The following information pertains to independent and primary partitions:
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v Console supporting hardware may be required to be located in specific slot locations, based on model.
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v Multiple IOPs capable of supporting a console workstation can interfere with the selection of the
desired LAN adapter. Consider the following:
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– Having a second IOP on the bus before your intended console adapter card, when the first IOP
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contains a twinaxial adapter card, may fail to provide a LAN-connected console. For example, a
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model 890 uses eligible card locations C04, and C06 through C10 and if an IOP were placed in C08
and a twinaxial adapter preceded this IOP on the bus then the LAN adapter card located at C09 or
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C10 will fail to provide a LAN-connected console. The LAN adapter card must be in a location
preceding the second IOP, such as C06 or C07.
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– Typically, the card location used for Operations Console directly attached configurations, commonly
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referred to as the Electronic Customer Support (ECS) slot, is located close to the beginning of the
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bus. When the card location is a low number such as C02, then C03 is farther from the beginning of
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iSeries: iSeries Access for Windows Operations Console
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