Multiple enclosures may be connected together using SAS Y-cables, up to a maximum of 192 SFF/96 LFF
drives or 8 enclosures. An example configuration is shown as below.
Figure 47. Multiple 12G Enclosures with Y-cable
One of the basic configurations is multiple enclosures connected to single or dual host adapters shown as
below.
Notes: The SAS zoning profile in Storage D3284 firmware (version 5.0.0.17) is not supported and the
following rules need to be considered:
• One host can access the drives in the JBOD ESMs at any time. See Figure 48 “Single host with single host
adapter- Multiple 5U Enclosures” on page 45 and Figure 49 “Single host with dual host adapters- Multiple
5U Enclosures” on page 45.
• One or more RAID adapters in the host can access the drives in the JBOD ESMs. Clustering is not
supported in this condition.
• One or more non-RAID adapter (HBA) in the host can access the drives in the JBOD ESMs. Clustering is
supported in this condition. See Figure 49 “Single host with dual host adapters- Multiple 5U Enclosures”
on page 45 and Figure 50 “Dual Host – Multiple 12G 5U Enclosures” on page 46.
44
Lenovo Storage D1212/D1224/D3284Hardware Installation and Maintenance Guide
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