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Just a thought, have you tried the enclosure on a USB 2 socket?
So old that I did my first coding in octal via switches on a DEC PDP 8
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I can't say that I have.
But I will definitely try it. Ironic, if a USB2 port turned out to be faster with this RAID enclosure than over USB3 or eSATA (USB2 is faster than what I'm currently seeing, so yes, it would be an improvement...)
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Years ago, I lived in the land of RAID. In my case, I had the need for high throughput for industrial systems. In circa 2000 all we had were spinners, and the fastest were SCSI. So, RAID made sense for higher performance and redundancy. I forget the manufacturer but they were high end and we paid a lot of $$ for these units. Redundant power supplies, controllers, drives, etc. Then one day, one of the controllers failed, and we lost the entire RAID. Seems the controller boards were sort of redundant. As the manager for the data group, it was an interesting conversation with the tech, support and ultimately a VP. It started with "you have to be elephanting kidding me?" Where upon I replaced their product.
Why do I say this? First, RAID helped but tech has passed on. If you are doing this for a science experiment, fine. For day to day, it's just not worth the hassle. Go buy some 4 tb usb drives and move on.
But let's talk about specifications. It is true that USB 2.0 supports UP TO 480 Mbps. USB 3.0 supports UP TO 5.0 Gbps. Note the "UP TO." The interface may support it, but I have yet to find a device that even approaches this transfer rate. I admit I have not tried a RAM disk. I have a fairly high end laptop with USB 3.2 on it. I can plug in a USB 3.2 SSD and copy my VMs to it. The burst speed is actually quite good, but when the cache fills, the transfer rate drops to 10% of the spec rate (I'm ballparking here, it's been a while since I did the test).
So, if you are moving large files - like me - 150GB for a VM via cut/paste, the cache will fill up and you will see perf degrade. This is with modern hardware. Your old spinners? I'd expect worse.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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I had a similar experience decades ago with a RAID controller that failed. RAID sounds great in theory, but when it's the controller that dies...you're no better off, and you now have more data that's unrecoverable than you would had you been using a single, smaller drive...
I reluctantly gave up on the idea for the longest time, concluding that a good RAID just isn't available at consumer prices.
This enclosure was under $200, so I figured why not give it another shot - especially since I had four of these 8TB drives not doing anything anymore.
charlieg wrote: Go buy some 4 tb usb drives and move on.
Actually I have more than enough larger drives already. They're sitting here doing nothing, which is the whole reason I decided to try to put them to some use in a RAID setup.
charlieg wrote: So, if you are moving large files - like me - 150GB for a VM via cut/paste, the cache will fill up and you will see perf degrade
I've definitely seen this. Reading the first couple of GBs with robocopy is fast. Watching Task Manager's memory usage is rather interesting during that time period. Then it flattens out, and performance starts to crawl once it reaches a certain point.
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"concluding that a good RAID just isn't available at consumer prices."
we ended up removing the raid from the system overall, and this was a pure hi-end industrial unit.
Typing this reminds me I need to do backups
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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Just to confirm, the USB3 connection is USB-C? I have a NVME enclosure which had full USB3 speeds in one cable orientation, but if flipped 180 it would be USB2. I would hope it's not something as simple as that. Can't hurt to try. I know that's the whole point of USB-C, however, that doesn't mean everyone handles things correctly
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The docs say the enclosure is USB 3.0 - not 3.1, not USB-C (which, as I understand it, can be faster still).
The cable that came with it is the plain ol', standard USB-A (rectangular) at one end, and USB-B (commonly used for printers) at the other, so I can't get them wrong. The connectors are blue, which suggests USB 3 (and not 2).
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Wordle 1,032 3/6
⬛⬛🟩🟩⬛
🟩⬛🟩🟩⬛
🟩🟩🟩🟩🟩
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Wordle 1,032 5/6
⬜🟨⬜🟨⬜
🟩⬜🟩🟩⬜
🟩⬜🟩🟩🟩
🟩⬜🟩🟩🟩
🟩🟩🟩🟩🟩
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Wordle 1,032 3/6
🟨⬛⬛🟩⬛
⬛🟩🟩🟩🟩
🟩🟩🟩🟩🟩
Ok, I have had my coffee, so you can all come out now!
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Wordle 1,032 3/6*
🟨⬜⬜🟨⬜
🟩⬜🟩🟩⬜
🟩🟩🟩🟩🟩
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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⬜⬜🟩🟩⬜
⬜⬜🟩🟩⬜
🟩🟩🟩🟩🟩
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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Wordle 1,032 4/6
🟨⬜⬜⬜⬜
⬜🟨🟨⬜🟨
🟩⬜🟩🟩⬜
🟩🟩🟩🟩🟩
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(16. April 2024) 4/6
⬛⬛⬛⬛🟩
⬛⬛⬛⬛🟩
⬛🟩⬛🟩🟩
🟩🟩🟩🟩🟩
Rules for the FOSW ![ ^]
MessageBox.Show(!string.IsNullOrWhiteSpace(_signature)
? $"This is my signature:{Environment.NewLine}{_signature}": "404-Signature not found");
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Wordle 1,032 4/6*
🟩⬜🟩⬜⬜
🟩⬜🟩⬜⬜
🟩⬜🟩⬜⬜
🟩🟩🟩🟩🟩
Happiness will never come to those who fail to appreciate what they already have. -Anon
And those who were seen dancing were thought to be insane by those who could not hear the music. -Frederick Nietzsche
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Wordle 1,032 5/6
⬜⬜⬜🟩🟨
🟩⬜⬜🟩⬜
🟩⬜🟩🟩🟩
🟩⬜🟩🟩🟩
🟩🟩🟩🟩🟩
I must confess my mind was in quite another place with those earlier two guesses
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Wordle 1,032 3/6
🟩⬜🟩⬜⬜
🟩🟩🟩⬜⬜
🟩🟩🟩🟩🟩
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Wordle 1,032 3/6
⬛⬛🟩🟩⬛
🟩⬛🟩🟩🟩
🟩🟩🟩🟩🟩
Skill 82/99
Luck 74/99
If you can't explain something to a six year old, you really don't understand it yourself. (Albert Einstein)
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Wordle 1,032 3/6*
🟨⬛⬛🟩⬛
⬛🟨⬛🟩⬛
🟩🟩🟩🟩🟩
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Wordle 1,032 2/6
🟨⬛🟩⬛⬛
🟩🟩🟩🟩🟩
Jeremy Falcon
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jschell wrote: self driving car
How many humans do you know who always drive safely, and according to the traffic regulations? If the cars learn from us...
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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In 30 years it will be deliberately obscuring its expired tabs and driving without insurance.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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Why bother, in St. Louis, Missouri, it is a game to have [overly] expired tags. I recently went to a park and viewed 8 expired tags while walking the parking lot in one aisle. Many tags are over a year expired. But that is another discussion.
Hogan
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Do I know how fast I was goi...
You know what, I think you are a robot.
I'm going to need you to point to at least three deciduous coniferous trees in the vicinity.
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