Eliot Moss wrote:
> Dear NVDimm folk:
>
> I write concerning ndctl verion 72.1+ running on Ubuntu 22.04 (Linux
> 5.15.0-41-generic x86_64).
>
> The system is a brand new two socket Dell server with cpu model Xeon GOld 6346
> and 4 Tb of Optane DC P200 memory.
>
> I am able to ue ndctl to configure the two regions with one namespace each in
> fsdax mode. Here is what ndctl list --namespaces -R prints:
>
> {
> "regions":[
> {
> "dev":"region1",
> "size":2177548419072,
> "align":16777216,
> "available_size":0,
> "max_available_extent":0,
> "type":"pmem",
> "iset_id":-953140445588584312,
> "persistence_domain":"memory_controller",
> "namespaces":[
> {
> "dev":"namespace1.0",
> "mode":"fsdax",
> "map":"dev",
> "size":2143522127872,
> "uuid":"ed74879e-4eb6-4f88-bb7f-ae018d659720",
> "sector_size":512,
> "align":2097152,
> "blockdev":"pmem1",
> "name":"namespace1"
> }
> ]
> },
> {
> "dev":"region0",
> "size":2177548419072,
> "align":16777216,
> "available_size":0,
> "max_available_extent":0,
> "type":"pmem",
> "iset_id":-3109801715871676280,
> "persistence_domain":"memory_controller",
> "namespaces":[
> {
> "dev":"namespace0.0",
> "mode":"fsdax",
> "map":"dev",
> "size":2143522127872,
> "uuid":"64c75dc0-3d7a-4ac0-8698-8914e67b18db",
> "sector_size":512,
> "align":2097152,
> "blockdev":"pmem0",
> "name":"namespace0"
> }
> ]
> }
> ]
> }
>
> What concerns me is that it shows "persistence_domain":"memory_controller"
> when I think it should show the persistence domain as "cpu_cache", since this
> system is supposed to support eADR.
FYI, I notice this topic was discussed on the 'pmem' list:
https://groups.google.com/g/pmem/c/K35X70fzAMw/m/5qEhhzb8AAAJ
