Dot Hill Systems II 200 FC service manual Configuration Overview

■Do not combine SANnet II 200 FC drives and SANnet II 200 SATA drives on the same Fibre Channel loop. Use them only on separate loops.

■Do not connect SANnet II 200 SATA expansion units to SANnet II 200 FC arrays in single-controller configurations.

■Make sure at least one additional logical drive is available before adding a SANnet II 200 SATA expansion unit. It is preferable to make sure a minimum of one available logical drive per SANnet II 200 SATA expansion unit is available.

■Consider managing and monitoring SATA arrays and expansion units out-of-band, balancing performance requirements against security issues. Because of the slower performance of SATA drives, managing and monitoring SANnet II 200 SATA arrays and expansion units using in-band connections might result in contention between I/O operations and monitoring operations.

See “Comparison of FC, SATA, and SATA SE Arrays” on page 1-2for information about appropriate uses of these products to make sure the solutions you choose suit your applications and requirements.

For more detailed information, and for suggestions about the most appropriate configurations for your applications and environment, refer to the SANnet II 200 FC and SATA Array Best Practices Manual.

Chapter 5 Configuration Overview 5-15