[SOLVED] Raid 5 to no raid, dead PC

Jul 17, 2021
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So I have an issue I am hopeing I can get some help with. So I had a PC that someone gave me and the video out died. I just wanted the HDD (4x3tb WD red pro nas). But they set it up with raid 5. Not knowing the drives were RAID, I put them into another system. Now i cant get it to work.

When installed in the system
-The drives show in BIOS
-The drives DO NOT show in Disk Management
-The drive shows in Intel Optane
I can not get it to work.

When I put the drive in an external case
-The drive shows in Disk Management, can format it, but it only shows Approx 750Gb

I want to reuse these drives but out of ideas

Any Help
 
Connected internally, one by one...the drives do not show up in Disk Management?
Disregard what size or whatever....they do not appear at all?

What are the rest of the specs of your system?
Any M.2 drives?

Connected internally, The drives never show up in disk management.
The main SSD is an M.2
 
Its a CODEX R 10SC-004CA. The Motherboard model is MSI B460

I have used different cables and used the other 2 ports. No Change

Not sure how to find the SSD M.2 Drive type.

"SATA1 will be unavailable when installing M.2 SATA SSD in the M2_1 slot. "
https://www.msi.com/Motherboard/MAG-B460-TOMAHAWK/Specification


When the drive is in the external enclosure, can you do the diskpart - clean thing?
The 750GB may be due to different sector sizes between the original RAID 5 and what the enclosure can use.
 
"SATA1 will be unavailable when installing M.2 SATA SSD in the M2_1 slot. "
https://www.msi.com/Motherboard/MAG-B460-TOMAHAWK/Specification


When the drive is in the external enclosure, can you do the diskpart - clean thing?
The 750GB may be due to different sector sizes between the original RAID 5 and what the enclosure can use.

Its not the TOMAHAWK but the instruction is the same. The M.2 is installed in the M2_2 Slot

Yes, i can do a clean in the enclosure.
 
I see no mention of 4TB. The claim is wrong, anyway.

In any case I would avoid that bridge because it uses an old JMicron controller (JM20337) which was affected by an insidious data corruption bug (I know because I have one). The solution was to cut a particular resistor.

Furthermore, transferring 3TB over USB 2.0 at 20MB/s to 30MB/s would be very slow.
 
I see no mention of 4TB. The claim is wrong, anyway.

In any case I would avoid that bridge because it uses an old JMicron controller (JM20337) which was affected by an insidious data corruption bug (I know because I have one). The solution was to cut a particular resistor.

Furthermore, transferring 3TB over USB 2.0 at 20MB/s to 30MB/s would be very slow.

The issue is; internal to a PC Nothing works. It does not show in windows. It is NOT seen by disk management or disk part so I cant format, change MBR to GPT, create a volume, etc. But in the enclosure, I can do these things to it but it only shows 746GB.
I dont want to keep it as an external drive, I want it to be a 3 TB internal drive. I just dont seem to be able to get that to happen.

Looks like I will be tossing out 4x 3TB drives. Oh well, at least I will get some good Magnets.


Here is the spec from the website

PerformanceType and RateUSB 2.0 - 480 Mbit/s
UASP SupportNo
Max Drive CapacityCurrently tested with up to 4TB 5400 RPM 3.5" hard drives and 1TB 5400 RPM 2.5" hard drive
Insertion Rating15,000 Cycles
 
The web site is wrong. Your result proves this.

Also, 480Mbit/s is rubbish. That's the max spec for USB 2.0, not this device. Nobody gets more than 30MB/s at best from a USB-SATA/PATA bridge.

If the vendor understood anything about ATA, they would know that, if a bridge can really support a 4TB drive at its maximum capacity, then it could also support a much larger drive (up to 48-bit LBAs).

It sounds to me that you have some strange issue with Intel Optane, but I have no experience with this.