The drive was also had a bootcamp setup on it. I used bootcamp to remove it, so maybe the program screwed up somewhere. I also dont fully understand Trim, is that just a windows feature or a mac feature?
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SATA Express meets the '09 Mac Pro - Bootable NGFF PCIE SSD
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The drive was also had a bootcamp setup on it. I used bootcamp to remove it, so maybe the program screwed up somewhere. I also dont fully understand Trim, is that just a windows feature or a mac feature?
Hey guys. Super helpful info here. Sorta makes me want to have my MacPro with 4 pcie slots back.
So what are the options for us Mac guys on the Trash Can Macs with 4 Thunderbolt-2 slots? Is there some enclosure I can get that plugs into 2 of the TB slots in which I put two crazy fast SSD drives in a RAID0? Give me some options please for "the fastest" read/write external possible with a TrashCan Mac Pro (e5).
So what are the options for us Mac guys on the Trash Can Macs with 4 Thunderbolt-2 slots? Is there some enclosure I can get that plugs into 2 of the TB slots in which I put two crazy fast SSD drives in a RAID0? Give me some options please for "the fastest" read/write external possible with a TrashCan Mac Pro (e5).
Your only option is something like this, but I'm not sure if anyone has tried it or how well it works with these fast ssds.
https://www.amazon.com/Akitio-AMZ-T...id=1469934357&sr=8-7&keywords=Thunderbolt+pci
As an Amazon Associate, MacRumors earns a commission from qualifying purchases made through links in this post.
Here's a good place to do some research:
http://barefeats.com/hard200.html
http://barefeats.com/hard204.html
http://barefeats.com/hard216.html
You're going to be limited to about 1350MB/s on any single TB2 bus. But you could RAID a couple of your 3 buses together for more.
Isn't a TB2 bus as fast or faster than any of the pciE solutions you're talking about? They make TB2 SSD enclosures already.. Isn't TB-2's top speed 10GB/sec? Or 20 bi-directionally?
No, that's 20Gbps...small 'b', meaning GigaBITS per second, not GigaBYTES per second. With overhead, TB2 buses appear to be limited to around 1350MB/s (MegaBYTES/sec), or 1.35GB/s. PCIe 2.0 slots in the Mac Pros from 2008–2012 go up to x16 (16-lane) and have a theoretical max bandwidth of 8GB/s, so can be much faster. The x4 (4-lane) slots are 20Gbps (theoretically 2GB/s after encoding loss), so a TB2 bus is roughly equivalent to a 4-lane PCIe 2.0 slot, but overhead means the PCIe slot is a bit faster.
Have a look at Rob's Insights section on this test:
http://barefeats.com/hard186.html
Fred
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Yep. I have a 1TB SSUBX in a nice little Sonnet TB enclosure (with PCI-E adapter) that I use with my iMac 5K (Sold the CMP) and it benches at ~1.3GB/s pretty solidly.
Can you share the brand names for both the drive and the enclosure, Sam?
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Damn! I hate that the spec industry still uses BITS in ANY of its specs.. Maybe in the wireless phone or Broadband world, I'd get it.. but why the hinky would they still quote ANYTHING in 'bits' in the computer communication speed world?? WHY?!?! Lol... Little frustrated to hear this. But thanks for re-education..
Sure, the SSD is an Apple one - the SSUBX is from more recent models. It's effectively a Samsung SM951 with Apple firmware. They're often on eBay but fetch a lot of cash:
http://www.ebay.com/sch/i.html?_fro...10.TRC2.A0.H0.Xssubx.TRS2&_nkw=ssubx&_sacat=0
If you could settle for 512GB then you can just use a Samsung SM951 without the Apple tax.
The enclosure is this one:
http://www.bhphotovideo.com/c/product/1060027-REG/sonnet_echo_exp_sel_soechoexpsel.html
I got an open box deal from them and got it for $200.
Ordered my sm951 AHCI and Lycom DT-120. Just double checking which slot is best for this combo on my 4,1?
Theoretically it might be possible through a boot redirect like so:
https://forums.macrumors.com/threads/boot-osx-on-a-nvme-card.1967790/
But AFAIK, nobody has actually tried it.
The NVME driver causing KPs has also been a big turnoff, but that seems to have been fixed?
https://forums.macrumors.com/threads/nvme-for-mac-pro-5-1.1919972/page-9#post-23110174
Yep, I had it in slot 3. According to USPS Tracking, the card is in Montreal
Lou
Indeed! Should get it tomorrow..
If you are installing Windows to a drive connected to one of the built-in SATA 2 ports, having OS X on a PCI-e drive shouldn't matter.
Yes I am using one of the drive bays for Windows. If the pcie drive is installed, Windows will hang on startup with black screen/blinking cursor. Removing the pcie allows Windows to boot fine. It's either because I'm using a squid card with dual m.2 in raid 0, or it's because the drive is seen as external, or both. I know owc cards had this issue but they fixed their accelsior and other pcie adapters with a "bootcamp fix driver".
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It also doesn't allow me to select an internal blank drive and create a single Windows partition. It wants to make the drive 2 separate partitions, one for OS X and one for Windows. I had no problems installing Windows on a separate drive as a single partition with OS X installed on a normal drive installed into one of the drive bays.
Using the squid, when I installed OS X on it, it did give the warning that "some features are not supported, such as FileVault and recovery partition". From what I understand this is because it is an unsupported raid setup, which probably has an effect on bootcamp as well. Anyone know how to trick OS X into thinking its a different setup? A Kext or terminal command perhaps?
Thanks
Sorry if this has been covered. From what I understand there has been a firmware update to the xp941, limiting its performance in slot 2 in the same way as the sm951 which essentially makes it a bit of a gamble if you intend to use it for that purpose? Does this hold true for the SSUAX as well?
The SQUID should not face performance impacts, the PLX chip used is solid in that regard and in cMP (or rather chipset) compatibility.
I have something new shortly tested either way - expanding 2 NGFF on a squid board to PCIe x4 for USB 3.0 and a 10G network card + using the other 2 slots for SSDs.
Album:
https://imgur.com/a/q1MVa
Will report back, i guess.
I have something new shortly tested either way - expanding 2 NGFF on a squid board to PCIe x4 for USB 3.0 and a 10G network card + using the other 2 slots for SSDs.
Album:
https://imgur.com/a/q1MVa
Will report back, i guess.