Optimizing Dell SCSI Solutions
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...load, PERC family, For more details on the array, create a new array with RAID' guide (see Appendix A - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 In contrast, Adaptec controllers will only use space on all 'child' arrays equal to the available space on the smallest... operation on an array including: Size of SCSI RAID controllers. Write-back caching is supported on PERC controllers that do not have a battery PAGE 31 11/17/2005 References), the recommended method of changing an array configuration is supported within the family of the same controller, ...
...load, PERC family, For more details on the array, create a new array with RAID' guide (see Appendix A - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 In contrast, Adaptec controllers will only use space on all 'child' arrays equal to the available space on the smallest... operation on an array including: Size of SCSI RAID controllers. Write-back caching is supported on PERC controllers that do not have a battery PAGE 31 11/17/2005 References), the recommended method of changing an array configuration is supported within the family of the same controller, ...
Optimizing Dell SCSI Solutions
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...power source (e.g. PAGE 32 11/17/2005 UPS etc), the controller's cache retains data during system power loss. Data Protection Strategy • Battery back up: see "Write Cache policy considerations" section above. • Global hot spare o A global hot spare can be in the same... later or to Table 5-2. o A global hot spare is completed when the disk subsystem receives all of data during a power loss. o Dell recommends using dedicated hot spares for critical data. • Consistency checks o Consistency checks verify the correctness of consistency check and resume it is ...
...power source (e.g. PAGE 32 11/17/2005 UPS etc), the controller's cache retains data during system power loss. Data Protection Strategy • Battery back up: see "Write Cache policy considerations" section above. • Global hot spare o A global hot spare can be in the same... later or to Table 5-2. o A global hot spare is completed when the disk subsystem receives all of data during a power loss. o Dell recommends using dedicated hot spares for critical data. • Consistency checks o Consistency checks verify the correctness of consistency check and resume it is ...
Optimizing Dell SCSI Solutions
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... MHz PCI 2.2 (HBA) # Channels 1 # internal connectors # External Connectors RAID Levels Supported Cluster Support? A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 - 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...
... MHz PCI 2.2 (HBA) # Channels 1 # internal connectors # External Connectors RAID Levels Supported Cluster Support? A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 - 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...
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...: 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...-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 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 -
...: 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...-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 A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02 Table 5-2 -
Optimizing Dell SCSI Solutions
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Battery Backup Unit BIOS - Collection of device without the need to form a single logical volume BBU - Multi-initiator Environment with all the I /Os PERC - Redundant Array of Inexpensive Disks or Redundant Array of device with MSCS operating environment HBA - Small Computer System Interface U160 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER...
Battery Backup Unit BIOS - Collection of device without the need to form a single logical volume BBU - Multi-initiator Environment with all the I /Os PERC - Redundant Array of Inexpensive Disks or Redundant Array of device with MSCS operating environment HBA - Small Computer System Interface U160 - A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER...