28.2. Configuring Persistent Memory for Use as a Block Device (Legacy Mode)
28.2. Configuring Persistent Memory for Use as a Block Device (Legacy Mode) To use persistent memory as a fast block device, set the namespace to sector mode. In the example, namespace1.0 is reconfigured to sector mode. Note that the block device name changed from pmem1 to pmem1s . This device can be used in the same way as any other block device on the system. For example, the device can be partitioned, you can create a file system on the device, the device can be configured as part of a software RAID set, and the device can be the cache device for dm-cache .
ndctl create-namespace --force --reconfig= namespace1.0 --mode=sector { "dev":" namespace1.0 ", "mode":"sector", "size": 17162027008 , "uuid":" 029caa76-7be3-4439-8890-9c2e374bcc76 ", "sector_size":4096, "blockdev":" pmem1s " }