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What is causing the problem?

You receive a ticket from a database group which is complaining about slow access to storage on
only one particular server, as compared to other servers in an active-active cluster. You verify
zoning and LUN masking which are fine. On the FC switch, you verify link speed, errors, and
throughput for the FC switch ports used by this server. There are no errors on the ports and the
link speed is the same as on the switch ports used by other servers in the cluster. You notice that
on one port on the FC switch used by this server, that there is no throughput at all.
What is causing the problem?

What is the cause of the errors?

You are trying to upgrade an existing 1Gb/s FC SAN that is using 62.5 micron multi-mode cable from
a tape library to a server that is 175 meters away to 2Gb/s Fibre Channel. After switching to the
2Gb/s Fibre Channel equipment, a connection to the server cannot be maintained. When a
connection is made, numerous errors are reported. What is the cause of the errors?

How must the volume be started?

A Database Administrator (DBA) has created a logical volume using disks from three different
arrays. The data from each array is synchronously replicated over a fibre channel link to one of
three arrays in a remote location. There is a rolling disaster which caused the remote links
between the arrays to fail at different times. The DBA is trying to start the volume at the remote
site. How must the volume be started?


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