IBM TotalStorage DS300 Best Practices Manual page 148

by at least one spare drive. Two logical drives will not be accessible because
no initiator was assigned. See Figure 4-84.
Figure 4-84 Configuration summary
31.Confirm the warning message to apply the configuration by clicking Yes.
Figure 4-85 Confirm configuration
It will take some time to apply the configuration. The more complex the setup
is, the more time is required to apply the configuration. See Figure 4-85.
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IBM TotalStorage DS300 and DS400 Best Practices Guide