1 Conduant Mark5C VLBI Recording System 7 th US VLBI Technical Coordination Meeting Manufacturers of StreamStor ® real-time recording products

2 Mark5C Status Second manufacturing run in progress. Board HW Verified CRC Implemented PSN Offset implemented Payload offset implemented Fill packet implemented

3 XAUI Core Packet detect / filter 8k x 64b RAM Packet Reorder 8k x 64b FIFO Amazon 156MHz105MHz Data Flow Block Diagram

4 Requirements Upgrade compatible with PATA Amazon used in Mark5B+ systems 4Gbps performance 10 Gb Ethernet Layer 2 Transport Filter on source MAC address (up to 16) Record all data in packet after software defined offsets Support Jumbo packets up to 9000 bytes Support PSN (packet serial number) validation No playback support Use CX4 connector (10GigE Copper)

5 Development Leverage existing SerialFPDP Mezzanine Board –4 port x 2.5Gbps optical Altera Stratix 2 FPGA Utilize Altera 10GigE XAUI Mega Core to bond 4 independent 3.125Gbps pipes Phased implementation plan 1.Detect packet boundary, record all packet data 2.CRC Check 3.Programmable skip over MAC and OSI layers, Record only VLBI data payload. 4.Filter on MAC source addresses (16 max) ( and destination?) 5.PSN Support

6 Thank you!

7 StreamStor ® Amazon Express 5 th Generation StreamStor Technology Data rate of over 600 MB/s sustained PCI Express 8 Lane interface Supports up to 16 SATA Drives Xilinx Virtex 5 FPGA Technology Onboard PowerPC and Real-Time OS –Stand Alone or Integrated Operation 2 GB Memory Buffer High Speed Mezzanine Board Interface (800 MB/Sec) –FPDP2, Serial FPDP, LVDS, 10 GigE Interfaces available

8 Beyond Mark5C Goals –Preserve investment in SATA drives –Provide single module 4Gb performance –Provide dual module 8Gb performance –Preserve investment in Amazon PATA (Mark5B+/C) –Provide growth path for next generation SATA native disk controller

9 Beyond Mark5C Proposal Use new backplane design with 8 independent SATA buses to each module providing >4Gbps performance to single module. –Replace chassis backplane –Retire PATA modules and drives –Replace drive module board –Implement switched SATA fabric –New GHz backplane connector

10 SATA Switch Matrix Chassis Backplane PATA x8 MASTERSLAVE Module BModule A SATA x8 SATA x16 SATA x8 Control

11 PATA to SATA Chassis Backplane PATA to SATA Module B Module A New Controller SATA x16 8 SATA to Module A 8 SATA to Module B Legacy Controller PATA x8