|C H A P T E R 8|
Combining Sun StorEdge 3510 FC Arrays and Sun StorEdge 3511 SATA Expansion Units
You can connect both Sun StorEdge 3510 and 3511 expansion units to a Sun StorEdge 3510 RAID array. This makes it possible to combine fast, reliable online data processing with less expensive near-line storage and backup.
See the release notes and Installation, Operation, and Service Manual for your array for information about appropriate uses for these products and limitations on their use.
If you are using a Sun StorEdge 3510 FC array and wish to add Sun StorEdge 3511 SATA expansion units, as many as five expansion units can be added. These can include any combination of Sun StorEdge 3510 expansion units and Sun StorEdge 3511 expansion units. In contrast, if using only Sun StorEdge 3510 expansion units, a maximum of eight expansion units can be added to a Sun StorEdge 3510 array.
Some practices that involve combining Sun StorEdge 3511 SATA expansion units with Sun StorEdge 3510 FC arrays and expansion units are not supported. Observe the following restrictions.
Under certain conditions it may be appropriate to combine Sun StorEdge 3510 FC expansion units and Sun StorEdge 3511 SATA expansion units attached to a Sun StorEdge 3510 RAID array. For instance, in a transaction-processing environment a configuration such as the one shown in FIGURE 8-1 might be appropriate.
This sample configuration shows two Sun StorEdge 3510 FC expansion units (above the RAID array in the illustration) and Sun StorEdge 3510 FCSun StorEdge 3511 SATA expansion units (below the RAID array in the illustration). This high-capacity configuration requires the configuration of RAID channels 4 and 5 as drive channels. This restricts host connections to RAID channels 0 and 1.