Search results

OK The manual IS NOT CORRECT!! I've been using a 82885T card [hosted to a LSI(/Imgur) 9300-8i HBA] for the last two years. During my initial (Do I need to return this? ) testing, I found the manual incorrect, in that ALL of the internal (SFF-8643) ports, including Port G, functioned perfectly...

[ It's my data ... so I'll elaborate ... ] CPU: Xeon 3rd Gen ES (IHS marked QWAN) ; reports as Stepping 6, w/microcode 0xD00037B, 32 cores Motherboard: AsrockRack SPC621D8 (8 DIMM slots) w/BIOS P1.40 DIMM slots (at time of test) contained 4x16GB (3200) RDIMMS + 4x128GB Optane PMEM...

I suggest you experiment with fio to discover an exact, simple, and easilly reproducable command (using a single/raw /dev/nvmeXn1 drive) to submit with your support request.

Amazon [Link] Well-regarded 4U CPU cooler for Sockets LGA-4677 and LGA-4189 (Xeon processors), SP3 and SP6 (EPYC processors), and sTR5, TR4, sWRX8, and sTRX4 (Threadripper processors). Spec Sheet: Attached (below) Review (Phoronix) [Link]

Very nicely done. Love the name ... "Service 24/7 -- and always a table available."

Two caveats: 1) Unless you get a significantly more expensive x16g3 or x8g4 HBA, your effective throughput ceiling, Best-Case (all-SAS3 drive usage [see below]), will be ~7GB/s (real-world#) 2) (regardless of HBA spec) Depending on the 12g:6g (ie, SAS3:SATA3/SAS2) drive mix, your effective...

That is a gross generalization. Analogy: "When buying a used car, the lower the mileage, the longer it will last you." (cf: Downtown stop-and-go usage vs. Highway commuter) The endurance #, provided by the drive's Log Page[0x11], factors in all of the NAND-related dynamics.

(implying[?]) that laptop has been powered ON 24/7 for ~9 years!! Is that true? Because the (Crucial) MX300 and the (Micron) 5200 both use a Marvell 88SS1074 controller.

Be careful! Those 8 (vertical) connectors are LP_8i. It could be difficult and/or expensive to source 8i-to-LP_8i cables; or adapter x16 slot cards with LP_8i connectors. SLIM_1, 2, 6, and 7 are "regular" (non-LP), 2x 8i each -- easy connectivity. Good value cards and cables (especially...

I figured it out. tnx anyway

Only PCIe Gen3, but GREAT price (while/if it lasts). PCIe x16 host to 8 x4 targets (via 4x SFF-8654_8i ports). Search aliexpress.com for >>CNS44PE16<< Sold by Ceacent_Store (the manufacturer). Price: US$50 (+10ship) I've been using one for 4+ years; excellent results. Just bought another! (At...

Warning! Real-time data acquisition is unforgiving of any shortfall in throughput at the ingest point. The Startech card does have a dedicated controller for each of the "5Gbps ports", BUT it does NOT (and can not) provide the full 5Gbps of throughput on any of those ports. As per the Startech...

Fallacy ... since the PCIe g3 x8 max is 7 GB/s (which is < 12 GB/s) (With all your storage) If YOU actually put 18-24 SATA3 SSDs, each capable of 400+ MB/s, on a SAS3 expander, which is dual-linked/"wide" to a PCIe g3 x8 SAS3 HBA, then YOU will experience a max throughput limit of <6 GB/s. The...

That is the premise I was addressing. But ... - If you connect non-12G devices (i.e. no SAS3) however many [e.g., 24x SATA3 SSDs], the total bandwidth will NOT exceed 6 GB/s (typical max is 4-5 GB/s). - You are definitely bottlenecked, but it is NOT by PCIe bandwidth. Try it ... :)

[EDIT: This post replaces #16] Only true for SAS3 drives. For SAS2 drives and, especially SATA drives, bottleneck of throughput is, typically, 4-5 GB/s. (And, yes, this is with the (tested) drives on a (dual-channel connected) SAS3 expander!) [Hint/clue: this limitation is circumvented...

NOTE: In response to @i386 post #17 (below), this post (#16) is "disowned" (though still visible) and replaced by #18. Note that #16 & #18 differ only in the quoted content; my reply remains the same. Only true for SAS3 drives. For SAS2 drives and, especially SATA drives, bottleneck of...

Just noticed a couple of items on AliExpress that I bought a while ago (for a fair price), currently on sale at large discount. [Note: Links and prices might vary for non-US user] 1. Ceacent CNS41CX16I SFF8654 8i to PCIe x8 (x16 phys) Riser Card $6.5 (+$9 ship) [Link] 2. Ceacent CNS42PE16...

Yes, that cable is correct. [ @TheSilentTroubadour the SFF-8482 connector works for both SAS & SATA] Better to buy it from its manufacturer [Ceacent] and save $20+ [Link] .

Also, Wrong! (see Post #1).

Wrong!! LSI 9500-8i has a single SFF-8654 **8i** connector.