Lenovo ThinkServer RD330 MegaRAID SAS Software User Guide - Page 18
Valid Drive Mix Configurations, with HDDs and CacheCade - SSD, Caching software
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Chapter 1: Overview | Technical Support MegaRAID SAS Software User Guide 1.7.1 Valid Drive Mix Configurations with HDDs and CacheCade - SSD Caching software You can allow a virtual drive to consist of both CacheCade - SSD Caching software and HDDs. For virtual drives that have both CacheCade - SSD Caching software and HDDs, you can choose whether to mix SAS drives and SATA drives on the CacheCade - SSD Caching software devices. You can choose whether to allow a virtual drive to consist of both CacheCade - SSD Caching software devices and HDDs. For a virtual drive that consists of CacheCade - SSD Caching software only, you can choose whether to allow SAS CacheCade - SSD Caching software drives and SATA CacheCade - SSD Caching software drives in that virtual drive. For virtual drives that have both CacheCade - SSD Caching software and HDDs, you can choose whether to mix SAS and SATA HDD drives with SAS and SATA CacheCade - SSD Caching software devices in various combinations. Table 1 lists the valid drive mix configurations you can use when you create virtual drives and allow HDD and CacheCade - SSD Caching software mixing. The valid drive mix configurations are based on manufacturer settings. Table 1: Valid Drive Mix Configurations # Valid Drive Mix Configurations 1. SAS HDD with SAS SDD (SAS-only configuration) 2. SATA HDD with SATA CacheCade - SSD Caching software (SATA-only configuration) 3. SAS HDD with a mix of SAS and SATA CacheCade - SSD Caching software (a SATA HDD cannot be added) 4. SATA HDD with a mix of SAS and SATA CacheCade - SSD Caching software (a SAS HDD cannot be added) 5. SAS CacheCade - SSD Caching software with a mix of SAS and SATA HDD (a SATA CacheCade - SSD Caching software cannot be added) 6. SATA CacheCade - SSD Caching software with a mix of SAS and SATA HDD (a SAS CacheCade - SSD Caching software cannot be added) 7. A mix of SAS and SATA HDD with a mix of SAS and SATA CacheCade - SSD Caching software 8. A CacheCade - SSD Caching software cannot be added to a HDD, but a SAS/SATA mix is allowed. NOTE: Only one of the valid configurations listed in Table 1 is allowed based on your controller card manufacturing settings. NOTE: The valid drive mix also applies to hot spares. For hot spare information, see Section 2.4.12, Hot Spares, on page 28. Page 18