154IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
Registered State Change Notification (RSCN), which does not cross zone boundaries, but will
effect every device or host adapter in the same zone.
If a host adapter should go bad and start logging in and out of the switched fabric, or a server
must be rebooted several times, you do not want it to disturb I/O to other hosts. Figure5-7 on
page 156 shows zones that only include a single host adapter and multiple DS6000 ports.
This is the recommended way to create zones to prevent interaction between server host
adapters.
By establishing zones, you reduce the possibility of interactions ...
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