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vmule

macrumors newbie
Jun 18, 2019
13
0
I'd like to build a raid 5 storage with 4x NVME drives to be used with various mac and thunderbolt 2/3.
Which enclosure do you advise?
HighPoint’s RocketStor 6661A-NVMe (which has this card inside) or the node lite + this card?
 

handheldgames

macrumors 68000
Original poster
Apr 4, 2009
1,943
1,170
Pacific NW, USA
The Node Lite is a better enclosure than the one included with RocketStor 6661A-NVMe. In the end, you end up getting what you pay for. My preference would be for the Node Lite or Node Duo + the Highpoint.
 

vmule

macrumors newbie
Jun 18, 2019
13
0
The Node Lite is a better enclosure than the one included with RocketStor 6661A-NVMe. In the end, you end up getting what you pay for. My preference would be for the Node Lite or Node Duo + the Highpoint.

Also I guess if I do a raid 5, the raid will not work on multiple Macs since it will be a software raid made on a specific machine?
 

handheldgames

macrumors 68000
Original poster
Apr 4, 2009
1,943
1,170
Pacific NW, USA
Great!

What speed do you guys think a raid5, with 4x 1TB Samsung 970 pro, it will able to reach connected to thunderbolt 2?

For raid 0... YMMV with raid 5.

Thunderbolt 2 scales to around 1375 MB/s.
While thunderbolt 3 scales to around 2800 MB/s.
In a cMP x16 slot, the 7101a-1 the raid can reach around 6000 MB/s
In a PCIe 3.0 x16 slot, the 7101a-1 the tops out at 12,000 MB/s
 
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vmule

macrumors newbie
Jun 18, 2019
13
0
For raid 0... YMMV with raid 5.

Thunderbolt 2 scales to around 1375 MB/s.
While thunderbolt 3 scales to around 2800 MB/s.
In a cMP x16 slot, the 7101a-1 the raid can reach around 6000 MB/s
In a PCIe 3.0 x16 slot, the 7101a-1 the tops out at 12,000 MB/s

I would be using it only in Thunderbolt 2/3, maybe it's a bit an overkill then..
 

Mac_User 0101

macrumors regular
Oct 8, 2017
133
43
Ho Ho Ho!

The replacement fan was delivered this morning - BFB0512HA-C @ 32.5 dBA ordered directly from Digi-Key ... BFB0512MA-C @ 28 dBA is on backorder but is expected this week and I am getting that too.

After wiring the 2-pin power plug and replacing the small heatsink I had installed earlier with a 22mmx22mmx4mm pure copper heatsink for better heat dissipation, PCIe ambient and NVMe drive temps have dropped by 8 degrees celcius under heavy write load and at a higher room ambient temp!! Fan sound is acceptable and on par with the system fans in comparison to the card's noisy factory fan =)

Previous results without fan but with small heatsink

PCIe ambient @ 33~34C and NVMe drive @ 38C peaking at 46C under heavy writes with the PCIe fan spinning at 1000rpm and room ambient temp at 25C

Current results with new fan and heatsink

PCIe ambient @ 29C and NVMe drive @ 36~38C peaking at 41C under heavy write with the PCIe fan spinning at 800rpm and room ambient temp at 28C

and finally some photos

View attachment 812582


View attachment 812584 View attachment 812586

Happy Holidays!


Edit: corrected Digi-key link

Update: Shifted the NVMe drive from slot 1 to slot 2 so it's in the path of the airflow which resulted in a drop in drive temperatures to 33~34C under normal use and 38C under heavy writes. I recommend slots 2 and 3 for optimal drive cooling. Updated post to reflect new temperature ranges.
Question for you: With the Highpoint SSD7101A installed in your classic Mac Pro, what RPM speed do your PCI and PSU fans spin at without the use of Macs Fan Control?
 

ghostmac1969

macrumors newbie
Jul 18, 2019
9
0
Hi,
I'm new on this forum. I read this thread and I'm wondering which PCIe 3.0 x16 SSD card can I use on x299 motherboard with core I9-99XX processor to build a RAID 0 boot disk ...
Tx a lot in advance
 

ghostmac1969

macrumors newbie
Jul 18, 2019
9
0
This is a Mac Pro forum, not about PC hardware compatibility. Perhaps you should look on a PC forum or a Hackintosh forum.

Try tonymacx86

Tx for your answer. I tried, but no answer found. I'm a Mac user (MacBook Pro 15 l plus iMac 27). I'd update my desktop Mac but at this moment Apple doesn't offer the right configuration for my needs. For this reason I was exploring the possibility to build an Hackintosh.
I still have to solve the storage problem. Reading this thread I understood that you have reached the top knowledge of all RAID on the Mac related problems and so I allowed myself to ask for help ...
 

TheStork

macrumors 6502
Dec 28, 2008
296
190
I read all the thread you mentioned, but no answer at all ...
The thread is closed per the author's request. What did you mean "no answer at all"?

However, we're off topic. The above thread is continued by kgp's followers here, which you should post additional questions.
 

tsialex

Contributor
Jun 13, 2016
13,454
13,601
Tx for your answer. I tried, but no answer found. I'm a Mac user (MacBook Pro 15 l plus iMac 27). I'd update my desktop Mac but at this moment Apple doesn't offer the right configuration for my needs. For this reason I was exploring the possibility to build an Hackintosh.
I still have to solve the storage problem. Reading this thread I understood that you have reached the top knowledge of all RAID on the Mac related problems and so I allowed myself to ask for help ...
The problem is that a Mac Pro is not a PC and some Mac Pro limitations don't apply to current PCs but at the same time, PCs don't have the firmware support that a Mac Pro has, like booting from PCIe M.2/U.2/SAS RAID arrays without the need of any card firmware.

For example, Highpoint SSD7101-A is not bootable when installed in a PC, but is bootable in a Mac Pro without needing any drivers or configuration whatsoever, because Apple implemented everything needed, like NVMe boot support/PCIe switch support/etc, in the BootROM.

Most info you can gather here is not applicable to a hackintosh.
[doublepost=1563468430][/doublepost]BTW, a X299 motherboard probably supports bifurcation, while you won't have the same throughput of a switched card, you have cheaper options.
 

ghostmac1969

macrumors newbie
Jul 18, 2019
9
0
The thread is closed per the author's request. What did you mean "no answer at all"?

However, we're off topic. The above thread is continued by kgp's followers here, which you should post additional questions.

No answer in the sense that neither in all the threads you mention there is an answer, nor on the entire forum was anyone able to clearly answer my question. The few references to RAID solutions lead to your thread (meaning this) and so I thought I'd ask here ...
 

joevt

macrumors 604
Jun 21, 2012
6,964
4,259
BTW, a X299 motherboard probably supports bifurcation, while you won't have the same throughput of a switched card, you have cheaper options.
You're saying a bifurcated PCIe 3.0 x4 link in an x16 slot has lower throughput than a PCIe 3.0 x4 link of a downstream port of a bridge with x16 upstream port? I don't understand this. I would expect that not having a bridge between the slot and the link would give slightly better results, unless enabling bifurcation adds some intermediary device? It would be interesting to see the difference using something like pciutils.

Do bifurcated slots work in a Hackintosh? I think they should, if macOS doesn't undo what the BIOS settings do.
 

tsialex

Contributor
Jun 13, 2016
13,454
13,601
You're saying a bifurcated PCIe 3.0 x4 link in an x16 slot has lower throughput than a PCIe 3.0 x4 link of a downstream port of a bridge with x16 upstream port? I don't understand this. I would expect that not having a bridge between the slot and the link would give slightly better results, unless enabling bifurcation adds some intermediary device? It would be interesting to see the difference using something like pciutils.

Do bifurcated slots work in a Hackintosh? I think they should, if macOS doesn't undo what the BIOS settings do.
If I remember correctly, depends on the processor used, but usually with a X299 platform you have 30 PCIe 3.0 lanes and 6 of these are permanently allocated to USB3.x ports, so at best you have 16 lanes for the GPU and 8 lanes for the second PCIe x16 slot, but most times you can't have all those lanes available since x299 motherboards usually have other peripherals already using the lanes, like Ethernet 10G using 4 lanes or Thunderbolt.

So, with four blades, at best, you can have just two lanes for each blade wired at boot up, that's why I warned about being slower. Some motherboards have switches and muxes on-board, plus you can install a high end Skylake-X with 44 lanes, but for the medium range, there are not enough lanes.
 

axxxxe

macrumors newbie
Apr 16, 2011
17
1
On a single ssd basis. Carrier boards with PCIe 3.0 x4 @ 8gts, is about twice as fast as Gen PCIe 2.0 x4 @ 5.0 gts. Taking the bandwidth of an x8 PCIe 2.0 connection and assigning it to a x4 PCIe 3.0 SSD.

The latest mac pro firmware fixes issues with the Highpoint initialization at x16 pcie 2.0. Full speed is possible without the need for setpci.

3) Highpoint M.2. 4xPCIe 3.0/8gts @ x16 - max throughput with 1 ssd at a time is 3200 MB/Sec , 6200+MB/Sec with 4 SSD, although 2 will take up the bandwidth.

Is the 6200+ achieved with a RAID? If so, can you share how you configured the RAID? I have a cMP5,1 with Mojave, boot ROM is 144.0.0.0.0, and a 7101A in slot 1. One Samsung 970 Pro 512GB runs at 3200 (read) but two 970s in HFS+ RAID 0 (created with diskutil) run at 3000 (read).

I created the RAID with `diskutil appleRAID create stripe RAID HFS+ disk0s2 disk1s2`

Here's my System Info:

qZUFe7q.png
 
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