Example 3. Broken Loop (Disk Drive Removed)
In Figure58 on page 407, disk drives 1 through 8 are connected to connectors A1 and
A2 of the SSAadapter 1, but the loop is broken because disk drive number 3 has
been removed. Disk drives 9 through 12 are connected to connectors B1 and B2 of the
same SSAadapter. Disk drives 13 through 16 are connected to connectors A1 and A2
of a different SSAadapter 2.
Although the missing disk drive is reported as an error,all the remaining disk drives can
still communicate with the using system. Disk drives 1 and 2 can communicate through
connectorA1 of the SSA adapter 1. Disk drives 4 through 8 can communicate
through connectorA2 of the SSA adapter. Disk drives 9 through 12 can communicate
through connectors B1 and B2 of the same SSAadapter (normal loop); disk drives 13
through 16 can communicate through connectorsA1 and A2 of the SSA adapter 2.
406 User’s Guide and Maintenance Information