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PowerEdge R550 only detecting one SSD
I have 2x 8TB HDD en 2x 250GB SSD. The HDD's get recognized by the BIOS (RAID), but the SSDs will only have one of them show up. If I remove any one of the two, the other one shows up after a reboot. I'd like to use them in a RAID1 to install the OS on my server but I cannot get them to show up both.
I've tried a lot of options in the RAID menu of my R550 but cannot get it working, I hope someone can help me out. The drives in particular are both Samsung 850 series SSDs.
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Posted December 7th, 2022 22:00
I'll attach some shots I made. The SSDs are in bay 2 and 3 and both light up when booting the system. In the RAID controller only 3 physical disks are detected.
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Posted December 8th, 2022 02:00
Thanks for the pics and please perform the below steps.
- Please swap the drives in slots 2&3 to check if the issue persists.
- Remove the 8TB drives from the system and check if the SSDs are being detected.
- If the boot mode is set to BIOS, can you change it to UEFI and vice versa.
- Please update the BIOS and try to configure.
Also, we cannot guarantee that a non-dell drive would work as expected as they do not have dell firmware and the PERC controller might not recognize the drive.
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Posted December 8th, 2022 03:00
I should have mentioned that in my first post. I have tried swapping the disks, removing the 8TB disks etc. It's weird to me that both SSDs work but it won't allow me to have both. The boot mode is set to UEFI already.
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Posted December 8th, 2022 12:00
I forgot to mention, I'm on the latest BIOS and I've gone as far as trying every single slot out of the 8 available. It will only detect one and never both. The status indicator light is lid up for both SSDs however. This is clearly a compatibility issue and I hate it. Why would it be so hard to just support mainstream SSDs/HDDs when it is possible on just about any non server motherboard...
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Posted December 8th, 2022 17:00
Hello, as you have suspected the compatibility issue- Once you try removing the HDD and plug in the SSD in the HDD slot and still seeing the same issue-
My final say in this case has to be:
Dell cannot guarantee that a non-dell drive would work as expected as they do not have dell firmware and the PERC controller might not recognize the drive.
Sorry i can't be of much help this time. Wish you a good one.Social Media and Communities Professional
Dell Technologies | Enterprise Support Services
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Posted December 10th, 2022 02:00
Which drives would be supported/certified? I cannot find a good answer online as to what drives I should go for.
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Posted December 11th, 2022 16:00
Hi you can get in touch with our sales team. Please specify whether you want SSD or HDD and what size you'd like to have. I believe we are still producing what you want.
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DELL-Young E
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Posted December 7th, 2022 19:00
Hello what RAID controller do you use? Is it possible for you to attach a screenshot or two where that one SSD is recognized only?
Social Media and Communities Professional
Dell Technologies | Enterprise Support Services
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