> Op 19 september 2017 om 13:34 schreef Kees Meijs <kees@xxxxxxxx>: > > > Hi list, > > It's probably something to discuss over coffee in Ede tomorrow but I'll > ask anyway: what HBA is best suitable for Ceph nowadays? > I still prefer LSI (Avago) in most systems. A 8-port or 16-port controller and a bunch of disks connected to them. > In an earlier thread I read some comments about some "dumb" HBAs running > in IT mode but still being able to use cache on the HBA. Does it make > sense? Or, is this dangerous similar to RAID solutions* without BBU? > I wouldn't trust a HBA with any of my data in cache, black boxes without me knowing what happens there. My preference is to put them in IT mode and that's it. Wido > (On a side note, we're planning on not using SAS expanders any-more but > to "wire" each individual disk e.g. using SFF8087 per four disks > minimising risk of bus congestion and/or lock-ups.) > > Anyway, in short I'm curious about opinions on brand, type and > configuration of HBA to choose. > > Cheers, > Kees > > *: apologies for cursing. > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
 |