PM8056 ChipPMC’s SAS (Serial Attached SCSI)ExpanderDevanshu ShrivastavaPhysical Design Staff Engr.(PMC Sierra)
SAS OverviewDevanshu Shrivastava
SAS Overview• Serial Attached SCSI (SAS), brings more flexible storage solutions to endusers and storage/systems integrato...
SAS Overview• Serialization of the SCSI interface overcomes the physical and functionallimitations of parallel interface t...
SAS Expander OverviewSAS Expander performs a data switching function between multiple hosts and target devicesDevanshu Shr...
SXP SAS Expander Chip FamilyDevanshu Shrivastava
SXP SAS Expander Chip Family• SXP 12G expandersThe SXP 12G expanders leverage PMCs advancedsilicon integration techniques ...
PM8056 Device• Product Overview• The PM8056 SXP 68x12G device is a 68-port SAS expander that featuresT10 zoning, self-conf...
PM8056 Application• Typical Applications include:• Server Storage JBODs and RBODs SAS SwitchesHigh Density HBAs and RAID C...
End of PresentationDevanshu Shrivastava
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PM8056 Chip SAS Expander from PMC Sierra

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PM8056 Chip SAS Expander from PMC Sierra

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PM8056 Chip SAS Expander from PMC Sierra

  1. 1. PM8056 ChipPMC’s SAS (Serial Attached SCSI)ExpanderDevanshu ShrivastavaPhysical Design Staff Engr.(PMC Sierra)
  2. 2. SAS OverviewDevanshu Shrivastava
  3. 3. SAS Overview• Serial Attached SCSI (SAS), brings more flexible storage solutions to endusers and storage/systems integrators in a variety of ways. SAS meets bothenterprise and midrange/nearline storage requirements at relatively lowcosts, providing users and integrators with flexible storage architectures.• Unlike its parallel SCSI predecessors, the SAS protocol provides a tunnelingmechanism for delivering SATA frames through SAS connectioninfrastructures, including physical cabling connections. Theseinterchangeable drive and cable connectors ensure “plug and play”between both SAS and SATA targets (hard disk drives, DVD drives, tape,etc.). Similarly, protocol and connection compatibility allows OEMs toeasily configure storage systems for multiple markets by simply alteringdisk drive options and characteristics. A single SAS enclosure or server canbe configured to support enterprise and/or midrange/nearlineapplications. In addition, end users can easily configure or update systemsby swapping high-performance SAS drives and low-cost SATA drives asappropriate.Devanshu Shrivastava
  4. 4. SAS Overview• Serialization of the SCSI interface overcomes the physical and functionallimitations of parallel interface technology. Increased bandwidthrequirements, as well as challenges presented by clock skew and powerconsumption, prevented SCSI from moving beyond the Ultra320specification. Serialization addresses the parallel interface limitationswhile significantly reducing power consumption. SAS leveragestechnologies prevalent in other serial interfaces, including SATA, GigabitEthernet, and Fibre Channel.Devanshu Shrivastava
  5. 5. SAS Expander OverviewSAS Expander performs a data switching function between multiple hosts and target devicesDevanshu Shrivastava
  6. 6. SXP SAS Expander Chip FamilyDevanshu Shrivastava
  7. 7. SXP SAS Expander Chip Family• SXP 12G expandersThe SXP 12G expanders leverage PMCs advancedsilicon integration techniques and leading-edgemixed signal design to deliver the industrys highestport density and best-in-class signal integrity.– PM8053: SXP 12G 24-port SAS/SATA expander– PM8054: SXP 12G 36-port SAS/SATA expander– PM8055: SXP 12G 48-port SAS/SATA expander– PM8056: SXP 12G 68-port SAS/SATA expanderDevanshu Shrivastava
  8. 8. PM8056 Device• Product Overview• The PM8056 SXP 68x12G device is a 68-port SAS expander that featuresT10 zoning, self-configuration, table-to-table routing, an Ethernet port,and an integrated MIPS processor for SES and enclosure managementsupport. Applications for the SXP 68x12G include SAS/SATA JBODs andRBODs, high-density SAS HBAs and RAID controllers, SAS switches, serverbackplanes, and HDD/SSD expansion for enterprise servers.• Benefits• Implements SAS 3.0 T10 zoning for secure storage and guaranteedinteroperability• Ultra low switching latency for improved system performance• Table-to-table routing removes need for keyed connectors• Integrated Ethernet port for seamless interface to management entity• Integrated MIPS processor for enclosure management• Firmware compatible with PMCs 6Gbps and 3Gbps expander productsDevanshu Shrivastava
  9. 9. PM8056 Application• Typical Applications include:• Server Storage JBODs and RBODs SAS SwitchesHigh Density HBAs and RAID ControllersDevanshu Shrivastava
  10. 10. End of PresentationDevanshu Shrivastava

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