Dell PowerVault 221S Optimizing Dell SCSI Solutions - Page 37

A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 - Controller Families and Features: Part 2 PERC 4/SC SCSI Technology Host Bus Interface Wide Ultra320 64-bit / 66 MHz PCI 2.2 (HBA) # Channels 1 # internal connectors # External Connectors RAID Levels Supported Cluster Support? Cache Size (DIMM) Write Cache Options Read Cache Options BBU Battery Life Max # Logical Drives/Controller Max # Physical Drives/Logical Drive Vendor SCSI Chip 2 x 68-pin HD 1 x 68-pin UHD 0, 1, 5, 10, 50 no 64 MB off, writethrough, write-back read-ahead (default), off (selectable) no BBU 40 32 LSI LSI 53C1020 RAID Processor Intel GC80302 PERC 4/DC Wide Ultra320 64-bit / 66 MHz PCI 2.2 (HBA) 2 2 x 68-pin HD 2 x 68-pin UHD 0, 1, 5, 10, 50 yes 128MB off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours 40 32 LSI LSI 53C1030 Intel GC80303 PERC 3/SC Wide Ultra3 / U160 64-bit / 66 MHz PCI 2.2 (HBA) 1 1 x 68-pin HD 1 x 68-pin UHD 0, 1, 5, 10, 50 no 64 or 128MB off, writethrough, write-back read-ahead (default), off (selectable) no BBU 40 32 LSI (AMI) Qlogic 12160 Intel i960 PERC 3/DCL Wide Ultra3 / U160 64-bit / 66 MHz PCI 2.2 (HBA) 2 2 x 68-pin HD 2 x 68-pin UHD 0, 1, 5, 10, 50 No 64 or 128MB off, writethrough, write-back read-ahead (default), off (selectable) no BBU 40 32 LSI (AMI) Qlogic 12160 Intel i960 PAGE 37 11/17/2005