PERC H345

[sj4318]

Hi All

I'm about to start installing PVE on 3 x Dell PE R7525 servers, they were previously running a vSphere cluster. These servers were pre-configured by Dell specifically for use with vSAN. The issue I have just discovered is the PERC H345 that are currently installed will not run in HBA mode, it is locked to RAID and according to the manuals it cannot be switched to HBA so the only option I have is to set all the disks to non-raid as they have been since conception.

I have done some hunting around for any specifics on this controller with PVE and Ceph but I have been unable to find anything. My assumption is that I am probably best off replacing the cards with a different PERC that has HBA mode?

What do you guys think?

 

[LnxBil]

My assumption is that I am probably best off replacing the cards with a different PERC that has HBA mode?

That is always the recommended way to go. Disks for CEPH or ZFS need to be accessed directly and HBA-mode on a RAID controller is not identical to a "real" HBA.

 

[sj4318]

That is always the recommended way to go. Disks for CEPH or ZFS need to be accessed directly and HBA-mode on a RAID controller is not identical to a "real" HBA.

Thanks for your reply

I'm going to reach out to Dell to find out what the options are that are available to these servers. I suspect they may tell me that they don't have a simple HBA adapter for use with the backplane and that I have to use something in HBA mode.

After I have contact with them I'll post a follow up for anyone else in my situation looking for answers.