SAS3508 tri-mode roc product brief applications ? direct attached sas/sata/pcie roc solutions for server and storage applications ? sas raid host bus adapter ? cost efective, single chip solution for entry-level raid storage systems supporting up to 8 direct-attach drives ? storage processor option for external storage applications ? utilize pcie attached ssds with confdence of industry leading device management and error recovery key features ? high performance iop ? dual core arm a15 C 32 kb l1 i/d caches C 1 mb shared l2 cache C 6 mb on chip memory extending raid and sas technology leadership, broadcom introduces 8-port tri-mode sas/sata/ pcie raid-on-chip (rocs) broadcom storage broadcom products serve four primary target markets: wireless communications, wired infrastructure, enterprise storage, and industrial. broadcom storage ofers the industrys broadest portfolio of storage solutions, backed by decades of experience and trusted by the worlds leading server and storage suppliers. broadcom provides the building blocks for storage solutions that help customers understand, prioritize, store and protect critical data. the 12 gb/s sas portfolio includes megaraid? controller cards, host bus adapters (hbas), advanced software options, syncro? shared das solutions and sas storage ics, including raid-on-chip (rocs), i/o controllers and expanders. overview the SAS3508 is the ffth generation of serial attached scsi (sas) raid- on-chip (rocs) based on the industry-leading fusion-mpt (message passing technology) architecture. the SAS3508 host interface supports 8 pci express (pcie) lanes and complies with the pcie 3.1 specifcation that extends the pcie data rates up to 8.0 gt/s per lane, and is backwards compatible to 5.0/2.5 gt/s. it also incorporates single root i/o virtualization (sr-iov) with 16 virtual functions, end-to-end crc (ecrc) with advanced error reporting (aer) lane and polarity reversal, power management, hot plug support, and msi/ msi-x and legacy interrupt generation. tri-mode serdes technology enables seamless operation of pcie, sas, or sata storage devices in a single drive bay. the introduction of pcie devices executing nvme command sets to the existing sas/sata infrastructure makes industry standard hot-pluggable drive bays even more versatile. the eight-port tri-mode roc device interface provides sas data transfer rates of 12, 6, and 3 gb/s per lane, or sata at 6 and 3 gb/s data transfer rates per lane, or pcie data transfer rates of 8, 5, and 2.5 gb/s. the device automatically negotiates between the speeds and protocols. t-10 data protection model t-10 end to end data protection (eedp) for early detection of and recovery from data corruption, and spread spectrum clocking (ssc) for emi reduction are supported. additional features include sas 2.1 power management and databolt technology allowing users to take advantage of 12 gb/s speeds while utilizing existing 6 gb/s drives and backplanes. pcie to 8-port sas/sata/pcie roc featuring tri-mode serdes technology SAS3508 tri-mode roc
SAS3508 tri-mode roc the SAS3508 roc integrates a 72-bit, ddr4-2133 dram interface which also supports non-volatile mram for cache-ofoad. mram enables energy- less cache data protection (no battery backup or supercap). the roc also supports hardware acceleration engines for raid 5 and raid 6 parity calculations and two high performance dual core arm a15 processors that achieve 4200 dhrystone mips (dmips) resulting in a cost-efective roc ideal for entry and mid-range servers. broadcom ofers a full featured raid implementation, megaraid hardware raid (0, 1, 5, 6, 10, 50, 60) is ideal for high performance and high availability applications. the roc can support up to 2,000 sas or sata devices and 10,000 outstanding ios and can achieve over 1 million ios per second. it supports up to 4 direct attached pcie devices and complies with pcie 3.1 specifcations, pcie dynamic power allocation (dpa), ecrc, and aer with compatible devices. the roc also supports nvme and ahci over pcie to attached pcie devices. broadcom provides a complete suite of industry standard operating system drivers. broadcom also supports virtual operating systems with device emulation and para-virtualization. key features (cont.) ? exclusive-or hardware engine for raid 5 ? raid 6 hardware acceleration ? raid features C megaraid support with activation key C raid levels 0, 1, 5, 6, 10, 50 and 60 ? dram back-up at power fail using onfi (open nand flash interface) C supports bad block management ? tri-mode (sas/sata/pcie) device ports C 8 port sas+sata controller C supports 12, 6, and 3 gb/s sas and 6, 3 gb/s sata data transfer rates C spread spectrum clocking C supports ssp, smp, stp and sata protocols C sas/sata device support C supports narrow and wide ports C t-10 end to end data protection (eedp) C t-10 optical support C sas 2.1 power management C supports up to 2,000 sas/sata devices C supports databolt bandwidth aggregation technology C up to 4 pcie links. each link supporting x4, x2 link widths, supporting 8.0 gt/s (pcie gen3) per lane C separate refclk independent ssc (sris) C pcie application layer supports nvme C up to 16 pcie devices behind a switch supported nvme ssd sata/sas ssd sata/sas hdd 8 bay mid-plane pcie slot sas 3508 8680 connectors sff-8680 tri-mode universal bay topology product brief
visit the broadcom server storage website at: avagotech.com/server-storage broadcom, the pulse logo, connecting everything, avago technologies , syncro and megaraid are among the trademarks of broadcom. copyright ? 2016 broadcom. all rights reserved. the term broadcom refers to broadcom limited and/or its subsidiaries. for more information, please visit www.broadcom.com. bc00-0463en 09.13.16 fusion-mpt architecture overview fusion-mpt architecture marks the next generation of i/o architecture designed to deliver the highest performance available today while reducing time to market, integration, and certifcation time. fusion-mpt devices are high performance, cost-efective protocol controllers that represent the newest system-level integration technology in intelligent i/o processors from broadcom. figure 3: sas 3516 block diagram mix pcie / sas / sata hdd or ssd in any combination utilizing 8 phys x4 x4 server sas 3508 8639 or m.2 ssd 8639 or m.2 ssd figure 1: direct attach with pcie, sas and sata raid volumes behind a single controller in servers with multiple drive bays figure 2: direct attach with pcie ssds for application acceleration in servers server sas 3508 mix pcie / sas / sata hdd or ssd in any combination utilizing 8 phys 8680 ssd 8680 ssd hdd hdd hdd hdd x2 x2 x1 x1 x1 x1 key features (cont.) ? pcie 3.1 host interface C supports x8, x4, x2, x1 pcie lanes at a transfer rate up to 8.0 gt/s per lane, full duplex C lane and polarity reversal ? sr-iov (16 virtual functions) C supports end-to-end crc (ecrc) and C advanced error reporting (aer) C pcie hot plug support C variable pcie bandwidth negotiation ? advanced power management support C slumber and partial power mode C support for sas and sata devices C programmable sas link power down C variable pcie bandwidth negotiation ? external memory interface support C spi based flash rom ? communication interfaces C interfaces for enclosure management services C uart and ethernet interface for debug ? sff-8485 compliant, sgpio ? jtag support ? package (estimated) 27 mm 8.0 gb/s 17 gb/s x8 pcie 3.1 host arm a15 1.2 ghz 32 kb i 32 kb d arm a15 1.2 ghz 32 kb i 32 kb d sio/gpio, uart, i 2 c, gbe, spi dma engines and fusion-mpt peripherals 9.6 gb/s sas, 8 gb/s pcie sas-3, pcie-3 device core x8 tri-mode phy i/o accelerators 6 mb on chip memory 1 mb l2 cache raid / xor ddr3/4 memory controller with automated o?oad 72 bit ddr3/4 x2 onfi 3.0 product brief
|
