Okay it seems like we don't really have a definitive answer on whether it's OK to use a RAID controller or not and in what capacity. Passthrough meaning: Are you saying that it's OK to use a raid controller where the disks are in non-RAID mode? Are you saying that it's OK to use a raid controller where each disk is in its own RAID-0 volume? I'm just trying to clarify a little bit. You can imagine that nobody wants to be that user that does this against the documentation's guidelines and then something goes terribly wrong. Thanks again, -Drew -----Original Message----- From: Anthony D'Atri <aad@xxxxxxxxxxxxxx> Sent: Thursday, July 11, 2024 7:24 PM To: Drew Weaver <drew.weaver@xxxxxxxxxx> Cc: John Jasen <jjasen@xxxxxxxxx>; ceph-users@xxxxxxx Subject: Re: Repurposing some Dell R750s for Ceph > > Isn’t the supported/recommended configuration to use an HBA if you have to but never use a RAID controller? That may be something I added to the docs. My contempt for RAID HBAs knows no bounds ;) Ceph doesn’t care. Passthrough should work fine, I’ve done that for tends of thousands of OSDs, albeit on different LSI HBA SKUs. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx