Dell PowerVault 221S Optimizing Dell SCSI Solutions - Page 38

A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 - Controller Families and Features: Part 3 SCSI Technology Host Bus Interface # Channels # internal connectors # External Connectors RAID Levels Supported Cluster Support? Cache Size Write Cache Options Read Cache Options BBU Battery Life Max # Logical Drives/Controller Max # Physical Drives/Logical Drive Vendor SCSI Chip RAID Processor PERC 3/DC PERC 3/QC PERC 3/Di PERC 2/QC Wide Ultra3 / Wide Ultra3 / Wide Ultra3 / U160 U160 U160 64-bit / 66 64-bit / 66 64-bit / 66 MHz PCI 2.2 MHz PCI 2.2 MHz PCI 2.2 (HBA) (HBA) (Embedded) 2 4 2 Wide Ultra 2 64-bit / 33 MHz PCI 2.1 (HBA) 4 2 x 68-pin HD 2 x 68-pin UHD 2 x 68-pin HD 4 x 68-pin UHD 2 x 68-pin HD (except 1650 & 2650 N/A) 2 x 68-pin HD 0, 1 or 2 x 68pin HD (server platform dependant) 4 x 68-pin UHD 0, 1, 5, 10, 50 0, 1, 5, 10, 50 0, 1, 5, 10 0, 1, 5, 10 yes 64 or 128MB DIMM off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours no 64 or 128MB DIMM off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours no 128MB DIMM off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours no 16 - 128 MB DIMM off, writethrough, write-back read-ahead (default), off (selectable) 48-72 hours 40 40 64 64 32 32 LSI (AMI) LSI (AMI) Qlogic 12160 2 X Qlogic 12160 Intel i960 Intel i960 64 64 Adaptec Adaptec 7899 Intel i960 OR GC80303 (server platform dependant) Adaptec 2 x Adaptec 7897N StrongARM SA110S Adaptec 39160 Wide Ultra3 / U160 64-bit / 66 MHz PCI 2.2 (HBA) 2 2 x 68-pin HD (LVD); 1x 50-pin Ultra 2 x 68-pin UHD (LVD) n/a no n/a n/a n/a n/a n/a n/a Adaptec Adaptec 7899 n/a (nonRAID) PAGE 38 11/17/2005