HP MDS600 HP BladeSystem Deployment Guide for Solutions with 6Gb SAS BL Switch - Page 72
The following standards are maintained in the sample configurations, Dual domain, Single domain
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The following standards are maintained in the sample configurations: Device / Component Single domain Dual domain SAS BL switches: Depending on the type of server blade Depending on the type of server blade used, one or two switches are installed in used, two or four switches are installed in the c-Class enclosure, providing a single the c-Class enclosure, providing dual paths path between the server blades and the between the server blades and the switches. When using full-height or switches. When using full-height or half-height server blades, one switch is half-height server blades, two switches are required. required, installed in adjacent interconnect bays, for example, in interconnect bays 5 and 6. MSA 2040 SAS or P2000 G3 One controller is installed in MSA 2040 SAS MSA controller modules: SAS or P2000 G3 SAS MSA controller enclosures, providing a single path between the switch and the MSA 2040 SAS or P2000 G3 SAS MSA System. Two controllers are installed in MSA 2040 SAS or P2000 G3 SAS MSA controller enclosures, providing an alternate path between the switches and the MSA 2040 SAS or P2000 G3 SAS MSA System. MDS600 or D6000 SAS I/O modules: One I/O module is installed in each Two I/O modules are installed in each MDS600 or D6000 storage enclosure MDS600 or D6000 storage enclosure drawer, providing a single path between drawer, providing alternate paths between the switch and the drives in the MDS600 the switches and the dual-port SAS drives or D6000. Unlike dual-port SAS drives, in each MDS600 or D6000 enclosure single-port SATA drives are always single drawer. domain, regardless of the number of I/O modules in the storage enclosure drawer.SATA drives are not supported for use in D6000 enclosures, but are supported for some MDS600 configurations. Support restrictions exist. For more information see "External SAS device, controller, drive, and cabling support matrices" (page 77) D2600/D2700 SAS I/O modules: One I/O module is installed in the D2600/D2700 storage enclosure, providing a single path between the switch and the single-port SATA disk drives in the D2600/D2700 disk enclosure. Two I/O modules are installed in the D2600/D2700 storage enclosure, providing alternate paths between the switches and the dual-port SAS disk drives in the D2600/D2700 disk enclosure. Cabling: A single cable is connected between the Two cables are connected between the switch and the storage enclosure. If ports switch and the storage enclosure: one from on the switch and the storage enclosure the primary controller or I/O module and are available, connect an additional cable one from the secondary controller or I/O between the devices, for improved module. If ports on the switch and the performance. storage enclosure are available, connect an additional cable between the devices, for improved performance. 72 Deployment examples
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