Dell PowerVault MD1120 User Manual

Page 17

About Your System

controlled by the

secondary (right) EMM. You must select either mode using

the enclosure mode switch on the front panel of the enclosure before
powering on (see Figure 1-2).

NOTE:

Clustering is not supported in the MD1120 host-based RAID solution.

Figure 1-6 illustrates the division of control, depending on whether you select
the enclosure to run in either unified or split mode.

Figure 1-6.

Physical Disk Slot Distribution in Split Mode vs. Unified Mode

NOTE:

To change the enclosure mode, you must change the position of the

enclosure mode switch

before you power on the enclosure. Changing the position

of the switch while the enclosure is on will not affect enclosure operation until the
enclosure is rebooted.

For a complete description of the roles of the primary and secondary EMMs,
see "Operating Your Storage Enclosure" on page 21.

EMM Control in Split Mode

EMM Control in Unified Mode