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rattlehead05

LSI Megaraid Tri-Mode for Cache

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Hi all!

 

I got my hands on a LSI Megaraid 9460-16i card recently, and it supports 1xNVME/4xSAS/4xSATA on each of its 4x SFF-8643 connectors. I was thinking of using a pair of NVME disks for a mirror cache pool, and using the remaining 8x SAS/SATA connections for my storage pool, like what's shown in the picture but with SATA disks.

 

Is there any reason this would give me issues? I have never used NVME before, and know SSD's are not recommended for the storage pool disks.

 

Thanks!

Screenshot 2020-09-21 114440.png

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That's a RAID controller, better option would be the 9400-16i, doesn't mean it won't work, just that's it's not recommended.

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It's got a software switch to change it to "JBOD Mode". Plus I got it for free from a machine that was getting scrapped, so it's the card I have haha.

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15 minutes ago, rattlehead05 said:

It's got a software switch to change it to "JBOD Mode"

Still likely to use the mrsas drivers, instead of the HBA's mpt2sas driver, but like I said it might still work, and if you have one it's worth trying, just be aware of the limitations of using a RAID controller with Unraid.

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On 9/21/2020 at 11:58 AM, rattlehead05 said:

It's got a software switch to change it to "JBOD Mode". Plus I got it for free from a machine that was getting scrapped, so it's the card I have haha.

Curious how your experience has been with that card.

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On 10/17/2020 at 9:46 AM, debit lagos said:

Curious how your experience has been with that card.

The card itself is fine, unfortunately it doesn't support NVME with the cables, it requires a backplane with come circuitry. I have been using 2x SAS 12Gbps Seagate ssd's for cache drives, and it's been just fine.

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