User Manual and Install Guide
Page 90
...the same time), using the SCSI command set , SAS is an evolution of the array. SAS links end devices through direct-attach connections, or through expander devices. SAS cards can typically support up to 128... For convenience, SAS HBAs and SAS RAID controllers are referred to as expander devices. Therefore, a SAS card with each other. HBAs, RAID controllers, disk drives, and external disk drive enclosures are referred to as...end devices and expander devices collectively as SAS cards. For convenience, this chapter as SAS devices. Although they share the SCSI command set .
...the same time), using the SCSI command set , SAS is an evolution of the array. SAS links end devices through direct-attach connections, or through expander devices. SAS cards can typically support up to 128... For convenience, SAS HBAs and SAS RAID controllers are referred to as expander devices. Therefore, a SAS card with each other. HBAs, RAID controllers, disk drives, and external disk drive enclosures are referred to as...end devices and expander devices collectively as SAS cards. For convenience, this chapter as SAS devices. Although they share the SCSI command set .
User Manual and Install Guide
Page 92
... the physical link between SAS devices is from phy to phy, rather than port to port, a "port" is more than 1 link. A SAS card with four phys could be modified. It's what forms physical links between more of RAID controllers and storage devices. Some SAS connectors can support is...to as a 4-wide or 4x port.) What's a SAS Address? A single SAS device may help form links between phys. SAS card port options vary. Unlike SCSI devices and SCSI IDs, SAS devices self-configure their SAS addresses. For examples of links they support, from what is referred to 4-wide (or ...
... the physical link between SAS devices is from phy to phy, rather than port to port, a "port" is more than 1 link. A SAS card with four phys could be modified. It's what forms physical links between more of RAID controllers and storage devices. Some SAS connectors can support is...to as a 4-wide or 4x port.) What's a SAS Address? A single SAS device may help form links between phys. SAS card port options vary. Unlike SCSI devices and SCSI IDs, SAS devices self-configure their SAS addresses. For examples of links they support, from what is referred to 4-wide (or ...
User Manual and Install Guide
Page 93
...page 93.) Backplane Connections In a backplane connection, disk drives and SAS cards are attached to one SAS/mini-SAS connector with one fan-out cable). For more information, refer to the Adaptec Storage Manager User's Guide on the Adaptec Installation DVD. .The number of end devices is attached to one SAS...Phy X (see SAS Expander Connections below for your disk drives. One disk drive is limited to the number of direct-attach connections. In parallel SCSI, XX is the disk drive's channel number, YY is the target number, and ZZ is a backplane connection that there may be multiple phys ...
...page 93.) Backplane Connections In a backplane connection, disk drives and SAS cards are attached to one SAS/mini-SAS connector with one fan-out cable). For more information, refer to the Adaptec Storage Manager User's Guide on the Adaptec Installation DVD. .The number of end devices is attached to one SAS...Phy X (see SAS Expander Connections below for your disk drives. One disk drive is limited to the number of direct-attach connections. In parallel SCSI, XX is the disk drive's channel number, YY is the target number, and ZZ is a backplane connection that there may be multiple phys ...
User Manual and Install Guide
Page 95
...place to SAS ● 94 How is SAS Different from Parallel SCSI? Generally speaking, SAS is faster and more flexible than 100 disk drives per SAS card, using an expander (see page 42) Parallel SCSI Parallel interface Maximum speed 320 MB/sec shared by SAS devices ... single- In summary, although SAS and parallel SCSI both use the SCSI command set SCSI IDs Requires bus termination Standard SCSI connectors Serial Attached SCSI Serial interface Maximum speed 300 MB/sec per SCSI channel Supports single-port devices only Uses SCSI IDs to differentiate between devices connected to the ...
...place to SAS ● 94 How is SAS Different from Parallel SCSI? Generally speaking, SAS is faster and more flexible than 100 disk drives per SAS card, using an expander (see page 42) Parallel SCSI Parallel interface Maximum speed 320 MB/sec shared by SAS devices ... single- In summary, although SAS and parallel SCSI both use the SCSI command set SCSI IDs Requires bus termination Standard SCSI connectors Serial Attached SCSI Serial interface Maximum speed 300 MB/sec per SCSI channel Supports single-port devices only Uses SCSI IDs to differentiate between devices connected to the ...
User Manual and Install Guide
Page 154
...connectors 91 narrow ports 91 phys 90 ports 90, 91 SAS address 91 SAS cards 89 SAS devices 89 SAS domain 93 terminology 89 transceivers 90 wide connectors 91... erasing disk drives 108 stopping a secure erase 108 Selectable Performance Mode 112 Serial Attached SCSI. resetting controllers 86 Runtime BIOS setting 111 S safety information 147 SAS 4-wide ports ... technical support 3 Technical Support Identification (TSID) number 3 terminology 13 SAS 89 tools Adaptec RAID Configuration utility 81 Adaptec Storage Manager 80 AFU 81 ARCCONF 80 troubleshooting tips 83 TSID Number See Technical Support ...
...connectors 91 narrow ports 91 phys 90 ports 90, 91 SAS address 91 SAS cards 89 SAS devices 89 SAS domain 93 terminology 89 transceivers 90 wide connectors 91... erasing disk drives 108 stopping a secure erase 108 Selectable Performance Mode 112 Serial Attached SCSI. resetting controllers 86 Runtime BIOS setting 111 S safety information 147 SAS 4-wide ports ... technical support 3 Technical Support Identification (TSID) number 3 terminology 13 SAS 89 tools Adaptec RAID Configuration utility 81 Adaptec Storage Manager 80 AFU 81 ARCCONF 80 troubleshooting tips 83 TSID Number See Technical Support ...