SSA RSM The Physical View Logical View Enclosure List Contents

The Physical View displays the physical network of SSA disks connected to this adapter. Any other SSA adapters connected within the same SSA network(s) are also shown. Cluster Mode Only

The resources are presented in the same order as they are viewed by this adapter. Each disk has a value known as a hop count. This value is used by the SSA adapters to communicate with each disk in the SSA network.

IBM SSA Adapters have two networks, or loops A and B. Each network has two ports. The four ports, A1, A2, B1 and B2 and the hop count from one of these ports dictates the position of a disk on the SSA loop. The ports that are connected are shown on the adapter image. Some SRN numbers contain the PAA address of a disk, where P is the port number, and AA is the hop count, or address. See the notes above the SRN table for more information.

The Physical view depicts the network connections from port A1 to A2 and from B1 to B2. Each entry either describes an adapter, or a disk.

Note:

If there is a break in the SSA network, the Physical View will show a red table row containing the word break. You should resolve this as soon as possible. If you are using a PC server, go to the Event Logger and Analyse the log to find the problem.

Note:

In building the Physical View, RSM has to gather a large amount of information from the adapter, disks, and any SES aware enclosures found in the SSA network(s). If the using system is under heavy load, or the SSA network is busy, it make take some time to load.


Disk Resource Attributes:


Adapter Resource Attributes:


Service Mode

You can Set Service Mode on a disk by selecting the disk serial number from the Physical View. On the Disk View select the action Set Service Mode. This effectively removes the disk from the SSA network, the network is now running as two strings, one from each port. The open loop events which are normally logged when this happens are not logged while a disk is in Service Mode.

Set Service Mode can be used when you need to remove a disk from the network. This may need to be done when a problem has been found, as a result of Event Log Analysis 2. Service Mode must be set when disks have to be moved. The action physically stops the disk motor.

Service Mode can be reset by selecting the Reset Service Mode button in the actions area of the Physical View.

Notes:

1.

You can only Set Service Mode when you have reached the relevant Disk View through the Physical View. Select the disk serial number to view the required Disk View.

That is, you cannot Set Service Mode when you have reached the relevant Disk View through the Logical or Enclosure Views.

2.

Only 'System (AIX)' (On a PC Server), 'System (PC)' (On AIX Systems), 'Free', or 'Rejected' disk resources can be put in Service Mode.

3.

Fast Write resources cannot be put in Service Mode no matter what their current usage.

4.

When a disk is set to Service Mode, the Physical View will show a red table row containing with a message telling you the disk is in Service Mode.


Actions:

Serial Number

Select any of the disk serial numbers to display the relevant Disk View

Resource Icons

All Resource Icons display concise details relating to the resource when selected. JavaScript Popup.

Refresh

This action updates the current page.

Reset Service Mode

This action will reset any Service Mode settings.


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