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jtejada.ralco

2 Intern

 • 

132 Posts

276

November 18th, 2024 16:16

R740xd NVMe not appearing on OS

Hi all,

I have a R740xd with 2 SSD drives and 4 NVMe connected with a PCIe extender card. All is ok on iDRAC, I see all drives ok, NVMe drives are on "ready" state. 

I have installed Windows server 2022 and I can see virtual drive configured on H740P controller but I can't see the NVMe drives even with diskpart.

S140 is set in AHCI mode. If I set RAID mode the NVMe drives disappear from iDRAC management. 

BIOS and iDRAC are updated to last version.

Someone knows how to solve it. 

Regards,

DELL-Chris H

Moderator

 • 

9.6K Posts

November 18th, 2024 21:14

jtejada.ralco,
 
Would you confirm a couple of things?
 
When you state the drives aren't displayed on the Disk Mgmt page, are they showing up on the Device Mgr list? I ask as it may just be that they need initialized through System Settings > Storage > Advanced Storage > Disks & Volumes.
 
Are you in BIOS or UEFI boot mode?
 
Have the Nvmes been configured to a Virtual Disk yet?
 
On a side note, you were mentioning the H740 and the S140, were you intending on using both?
 
Let me know and we can go from there. 
 
 
 

jtejada.ralco

2 Intern

 • 

132 Posts

November 19th, 2024 08:18

Hi @DELL-Chris H ,

- Through Disks & Volumes are also not appearing so I am unable to initialize them.

- UEFI Boot mode​.

- Not set Virtual disk. If I set RAID mode in BIOS SATA setting drives disappear from S140 configuration so AHCI mode is set now.

- Yes I would use H740P for 2 SAS SSD drives for system and 4 NVMe for storage. I have other servers with same configuration working

DELL-Joey C

Moderator

 • 

4K Posts

November 19th, 2024 09:56

Hi,

 

The 4 NVMe drives are installed into which slot numbers? Also, the PCIe extender card, which PCIe slot is it installed in? Can you provide us the PCIe extender card DPN#. How many CPU are installed? 

 

You mentioned you have other servers with same configuration, H740P installed? H740P do not support NVMe. 

 

Based on the user guide, what are you riser configuration? https://dell.to/3CJhPzi

 

Also, based on the cabling guide, which best fit your server's configuration: https://dell.to/3YTLRrM

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