ùISO8859-1  -/] r~2œÏ é   + ;N_ÿtátXV±¯_ aÔ Áõ –<Œ ÊÉ 3” jÈ T3 Nˆk×SSA AdaptersList All SSA AdaptersChange/Show Characteristics of an SSA AdapterTrace an SSA AdapterSSA AdapterEnable the SSA Adapter DaemonChange/Show the SSA Cluster Number For This SystemScatter Gather Table SizeList All SSA Adapter DumpsCopy an SSA Adapter DumpSSA Dump DiskSSA Adapter UIDOutput Device/FileDump Area NumberIO Polling ThresholdSSA adapters are automatically configured into the system at boot time with default characteristics that typically do not require change. Selecting SSA Adapters here allows you to show or change characteristics, such as the size of the adapter's DMA area.For SSA adapters, the location code format is AA-BB. AA - This field refers to the location of the controlling adapter. A value of 00 indicates the controlling adapter card is located in the CPU drawer or system unit, depending on the type of system. BB - The BB field identifies the I/O board containing the adapter. The first digit is 0 for the standard I/O board or 1 for the optional I/O board. The second digit identifies the slot on the I/O board that contains the adapter.This shows the name of the file most recently used to download microcode to the adapter.This specifies whether the SSA adapter daemon will be started when the adapter is configured. If the value is true then the SSA adapter daemon will be started. The daemon simply holds the adapter device driver special file open. It sends no commands and initiates no I/O requests. The purpose is to allow the adapter state to be monitored and to allow errors to be logged into the system error log for the adapter even if it is not in use. This is useful if the adapter is connected to an SSA loop which contains other SSA adapters which may be accessing the devices on the SSA loop even though this adapter is not accessing them. The penalty for this is that holding the adapter open ties up some real memory which would otherwise be available for other uses. The attribute should be set to false if the system has little real memory, the adapter is not in use, and adapter is not connected to any SSA loops which contain other SSA adapters.This is a system wide unique identifier for the SSA adapter, which is used by the SSA software.This attribute sets the total bus address space which is available for DMA transfers for commands which are active or queued on SSA devices accessed via this adapter. The default value is sufficient for normal circumstances. The attribute should be changed if large numbers of devices supporting long queues need to be kept active with I/O. If the system attempts to initiate more concurrent I/O request than can be serviced with the available DMA space then some I/O requests will be queued in the adapter device driver. If this happens then the total system performance may be affected, depending upon the workload. Increasing the value may result in increased system performance if the current value is causing I/O to be queued in the adapter device driver. Increasing the value may result in some adapter cards not being configured if the total amount of bus memory space requested by all of the adapter cards on a particular bus is greater than that available on the bus.This attribute controls the size of the scatter-gather table used by the device driver. This table is used to control I/O operations sent to the adapter. If it is too small, you may experience degraded adapter I/O performance when under heavy load. If it is too large it will needlessly consume kernel memory, which will also affect system performance. The size of the table is specified in 4K pages. If you have many disks attached to the adapter, which are used intensively then consider setting the table size quite large. If the anticipated I/O load to the adapter is modest, then consider reducing the table size to conserve memory. Setting it too small will cause adapter I/O performance to degrade while setting it too large will just use up memory.This option will list all of the available SSA adapter dumpsThis option allows the user to copy a selected SSA adapter dump to a specified location. The file is copied into temporary storage space, compressed, then output to the specifed device/file using 'tar' Select one of these SSA Adapter Dumps, to be copiedThis is the device that the SSA adapter dumped to and therefore the device that the request will copy fromThis is the device or file that the output will be sent to, using the 'tar' command.The is the area number where the selected dump will be found on the dump disk.This attribute is the number of IOs required per clock tick (10ms) to switch the driver to IO polling mode.