Newegg: Intel 750 400GB AIC NVMe drive $299.99

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T_Minus

T_Minus

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These prices should become more normal -- I wouldn't worry if you don't bite on either of these deals.
 
K

Kal G

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This deal is still up.

Of note, the 400GB and 1.2 TB versions are limited to two per customer. The 2.5" 800GB has no limit on quantity.
 
Patrick

Patrick

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And the 512GB Samsung 950 Pro is $0.684/GB

There are really nice things about using m.2 SSDs. On the other hand, the 512GB SSD is not going to have any OP. I do wonder how write endurance is impacted on the 750 with a bit more OP. For example, if that 800GB was run at 700GB capacity.
 
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EluRex

EluRex

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hi all

i need your valuable input. I have a Supermicro | Products | Motherboards | Xeon® Boards | X9SRH-7TF zfs storage server in production, right now I need to upgrade its zfs cache and zil and I am caught btw samsung 950pro and also intel 750.

The server currently using intel 535 as cache and intel 313 slc ssd as zil, so I have 2 pci-e 3.0 x16 slot available (one slot only has x8 lane).

I only need 400GB~ 500GB size ssd only due to the server RAM is already upgrade to max 256 gb. My goal is to increase write performance.

My dilemma
  1. how durable is samsung 950pro?
  2. if I use samsung 950pro, then I need to get m2 -> pci-e adaptor like AOC-SLG3-2E4 or Dell 4x m2 NVMe Drive PCIe Card ( save myself a pci-e 3 x8 slot) but it adds cost quite a bit and question about compatible issue, also availability issue.
  3. if I use intel 750, its cheaper and I know it is compatible, but it will use up two slot and its write performance is only 1/2 of samsung pro.
 
MiniKnight

MiniKnight

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If you're going to upgrade the ZIL, I'd Intel 750 800GB and over provision it. You'll need to OP to get more write endurance.

The Intel 750 is the same design with lower endurance than the P3700, P3600, P3500 cards. Power loss protection.

The Samsung 950 Pro is a consumer laptop drive.

Intel 750 write endurance is like 127TB
Samsung 950 Pro write endurance is 400TB

I'd bet if you OP'd the 750 by 50GB you'd have equal or better write endurance.
 
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markpower28

markpower28

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EluRex said:
hi all

i need your valuable input. I have a Supermicro | Products | Motherboards | Xeon® Boards | X9SRH-7TF zfs storage server in production, right now I need to upgrade its zfs cache and zil and I am caught btw samsung 950pro and also intel 750.

The server currently using intel 535 as cache and intel 313 slc ssd as zil, so I have 2 pci-e 3.0 x16 slot available (one slot only has x8 lane).

I only need 400GB~ 500GB size ssd only due to the server RAM is already upgrade to max 256 gb. My goal is to increase write performance.

My dilemma
  1. how durable is samsung 950pro?
  2. if I use samsung 950pro, then I need to get m2 -> pci-e adaptor like AOC-SLG3-2E4 or Dell 4x m2 NVMe Drive PCIe Card ( save myself a pci-e 3 x8 slot) but it adds cost quite a bit and question about compatible issue, also availability issue.
  3. if I use intel 750, its cheaper and I know it is compatible, but it will use up two slot and its write performance is only 1/2 of samsung pro.
Click to expand...
What kind of write performance are you looking for?
 
EluRex

EluRex

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Apr 28, 2015
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markpower28 said:
What kind of write performance are you looking for?
Click to expand...
either sm950pro or intel750 will be huge performance improve over intel 313.

I need this zfs storage server to handle over 128 vm (just storage) over infiniband rdma including db server, erp, crm, mail server and more.

i dont have example number but hoping over 1200 mb/s write throughput
 
T_Minus

T_Minus

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With your usage I would totally avoid the samsung, and if I got the 400gb 750 intel you'd obviously OP it a ton for SLOG device. You'd need to figure out the proper transaction size for your network, and SLOG performance and then set the SLOG drive size, and transaction size in ZFS.

It sounds to me like you'd benefit from 2x Intel 750 one for SLOG device and one for L2ARC device.

That would drastically improve performance over SATA, old drives :)
 
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markpower28

markpower28

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For L2ARC, you can benefit from large SSD as read cache. Gea and many has emphasised you maybe better off build a SSD array instead of using them as L2ARC. For SLOG/write cache, you can benefit from fast SSD to increase write performance but remember it's a buffer so you may not need a very large size. Because of that reason ZeusRAM still the best option for SLOG. It's very fast and unlimited endurance since it's memory based, but the size is only 8GB.

With that said, I recently tested with a SLC FusionIO based SSD. https://forums.servethehome.com/index.php?threads/log-performance.7557/
It can easily push up to 1 GB/s for write acceleration but is your mechanical drives fast enough to handle that? :)

One of the biggest benefit for NVMe based SSD is high performance and low latency. You maybe better off use NVMe based large SSD as a single volume for VMs that demand high performance/low latency. (A single 1.2 TB 750 = 6 x SSD in RAID 0)
 
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P

PnoT

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I was looking at this as well for a ZFS implementation but have recently bought a 640GB ioDuo that could be split between L2ARC and SLOG. These drives are impressive
 
T_Minus

T_Minus

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Feb 15, 2015
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I realized amazon price match + amazon gift card + 5% off amazon card = cheap NVME.... too bad when I clicked the Amazon link it's not $299 anymore :( DOH!!

I plan to fully test the 750 vs ZuesRAM here within the next couple weeks after my damn parts arrive, kid at christmas... lol
 
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