Dell PowerVault 221S Optimizing Dell SCSI Solutions - Page 36

A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 - Controller Families & Features: Part 1 SCSI Technology Host Bus Interface PERC 4e/Di Wide Ultra320 x4 PCI Express (Embedded) PERC 4e/DC Wide Ultra320 X8 PCI Express (HBA) PERC 4/Di (PE2600) Wide Ultra320 PCI 2.2 (Embedded) PERC 4/Di (PE1750) Wide Ultra320 32-bit / 33 MHz PCI (Embedded) # Channels 2 2 2 2 # internal connectors 2 x 68-pin HD # 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 1 x 68-pin UHD 0, 1, 5, 10, 50 no 256MB DDR2 off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours 40 32 LSI LSI 53C1030 2 x 68-pin HD 2 x 68-pin UHD 0, 1, 5, 10, 50 yes 128MB DDR off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours 40 32 LSI LSI 53C1030 2 x 68-pin HD 1 x 68-pin HD 0, 1, 5, 10, 50 no 128MB DIMM off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours 40 32 LSI LSI 53C1030 n/a (hardwired to backplane) 1 x 68-pin UHD 0, 1, 5, 10, 50 no 128MB DDR2 off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours 40 32 LSI LSI 53C1030 RAID Processor Intel GC80332 Intel GC80332 Intel GC80303 Intel i80321 PAGE 36 11/17/2005