Enterprise SSD "small deals"

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nexox

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May 3, 2023
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luckylinux said:
Damn in the Middle of the Night o_O . How come was it so cheap though ???

EDIT 1: I feel like it's a Typo. 30 USD instead of 300 USD looking at similar Offers ...
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Indeed, the pair I managed to grab were just cancelled due to a listing error. Dang
 
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ca3y6

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Apr 3, 2021
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At least they are not pretending that you requested to cancel the order which happened to me a few times when a seller mis priced an item. Errors happen, it’s ok for a seller to cancel an order, but no need to lie to the users or bullshit them.
 
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nexox

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May 3, 2023
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ca3y6 said:
At least they are not pretending that you requested to cancel the order which happened to me a few times when a seller mis priced an item. Errors happen, it’s ok for a seller to cancel an order, but no need to lie to the users or bullshit them.
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I mean, they claimed the error was that the drives are not in stock, they didn't suggest the price was a mistake, but at least they didn't mess around.
 
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miraculix

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Mar 6, 2015
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I gotta admit, 3.4TB (or hopefully larger) SAS SSDs have been tempting and I have spare MATX and FATX boards laying around just needing a SAS controller and a cheap QSFP NIC.
 
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ca3y6

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nexox said:
I mean, they claimed the error was that the drives are not in stock, they didn't suggest the price was a mistake, but at least they didn't mess around.
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Actually by asking google, here is the explanation I was given:

A seller might falsely claim a buyer requested cancellation to avoid a transaction defect on their eBay seller account. If a seller cancels an order, it can negatively impact their seller performance, potentially leading to a defect. By claiming the buyer requested the cancellation, the seller can avoid this defect.

Here's why sellers do this:
Avoiding Transaction Defects:
eBay penalizes sellers with defects on their accounts for cancellations, especially for reasons like "out of stock" or "damaged".

Preserving Seller Reputation:
A high number of defects can negatively affect a seller's standing, potentially impacting their visibility in search results and overall sales.

Avoiding Refunds:
In some cases, sellers might cancel because they've made a mistake in pricing or listing and don't want to sell at the agreed-upon price. By falsely claiming buyer cancellation, they avoid the hassle of a refund.

How buyers can respond:

Contact eBay Customer Service:
If a buyer suspects a seller is falsely claiming cancellation, they can contact eBay and explain the situation.

Document Everything:
Keep records of messages, order details, and any other relevant information.

Consider the Impact:
If the seller's actions are a clear violation of eBay's policies, buyers can report them.
Click to expand...
 
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ca3y6

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MSameer said:
They are but they consume a LOT of power.
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Agree. To me they only make sense if either you need the higher performance but don't have the PCIe lanes to go U.2; or you need drives larger than 7.64TB (max size of SATA enterprise SSDs).
 
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miraculix

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Mar 6, 2015
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MSameer said:
They are but they consume a LOT of power.
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Just to be clear... a lot more power compared to SATA SSDs of similar capacity, or compared to NVMe drives of similar capacity?

It doesn't show power consumption by capacity, but the old Samsung data sheet reports 11W active / 4.5W idle. I can only speak to my own limited experience, but that's not far off from my Intel/Solidigm D7-5600s and P4610s.

Having said that... still tempting but I'd rather hold out for higher capacity NVMe drives and make better use of the PCIe lanes on the extra motherboards I have in mind.
 
jhartbarger

jhartbarger

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Jan 5, 2022
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miraculix said:
Just to be clear... a lot more power compared to SATA SSDs of similar capacity, or compared to NVMe drives of similar capacity?

It doesn't show power consumption by capacity, but the old Samsung data sheet reports 11W active / 4.5W idle. I can only speak to my own limited experience, but that's not far off from my Intel/Solidigm D7-5600s and P4610s.

Having said that... still tempting but I'd rather hold out for higher capacity NVMe drives and make better use of the PCIe lanes on the extra motherboards I have in mind.
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Yes when compared to SATA, you are also correct that power usage between SAS and NVME is similar. The advantage to SAS is that its twice as fast as SATA but draws twice the power, other advantages are density compared to nvme (unless your platform has tons of PCIe lanes) and cost when compared to sata when you get past 3.84TB drive sizes.

Go compare 1DWPD SATA, SAS, and NVME 7.68TB drive prices and the picture becomes clear as to "why" one would choose SAS drives.
 
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ca3y6

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You are taking a bit of an extreme. A typical samsung SAS SSD will idle at 5w and consume 12w full, 18w for SAS4. Samsung U.2 will idle at 7w and full power are 20-25w. So consumes a bit more than SAS, but in the same order of magnitude vs SATA. SATA typically idles around 1w and full load 3-4w. And that's for enterprise SSD. Retail SATA is way less.
 
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ericloewe

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Apr 24, 2017
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The P4608 is far from representative, because it's actually two SSDs and a PCIe switch in a trench coat. The latter alone probably probably needs 5-7W just to keep the links going at full speed.
The bad old days when all the relevant platforms did support bifurcation but vendors had not yet flipped the bit in the setup menu to show the bifurcation options to end-users...
 
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