sscargal
commented
5 years ago You can delete the current namespaces and 'goal' which determines the region configuration at boot time. Then install the new DCPMM and create a new goal. Finally, you can then create the namespaces.
*) Check for namespaces
ndctl list -iN
Ignore any namespaces with "size:0" and "uuid":"00000000-0000-0000-0000-000000000000"
*) Delete all valid namespaces on all regions
ndctl destroy-namespace namespace0.0
or
ndctl destroy-namespace -f all
*) Delete the region goal
ipmctl delete -goal
*) Reboot the host
systemctl reboot
*) Power off the host and install the new DCPMM (If the new DCPMM is already installed, you can skip this step)
systemctl poweroff
*) Create the new 'goal'
ipmctl create -goal PersistentMemoryType=AppDirect
*) Create the namespaces
ndctl list -R
ndctl create-namespace [options]
ccrhx4
kellycouch
Hello,
I am adding two new AEP DIMMs to the server. To avoid any surprise, I am trying to delete all the namespaces, regions previously configured. But I failed to delete regions. I can still see regions by ipmctl after disabling region by ndctl. So how can I erase all the configurations and safely reconfigure the hardware?
cmd> ndctl list -Ri [ { "dev":"region0", "size":270582939648, "available_size":270582939648, "max_available_extent":270582939648, "type":"pmem", "iset_id":-5782359445199707068, "state":"disabled", "persistence_domain":"memory_controller" } ]
cmd> ipmctl show -a -region
---ISetID=0xafc0eeb8893f2444--- SocketID=0x0000 PersistentMemoryType=AppDirect Capacity=252.0 GiB FreeCapacity=252.0 GiB HealthState=Healthy DimmID=0x0020, 0x0120