Dell EMC VxFlex Ready Node User Manual page 213
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Remove the storage devices from VxFlex OS
"size": 16909336576,
"uuid": "38cbd555-3f5b-4f4f-8d83-bf77db75553d",
"daxregion": {
"id": 0,
"size": 16909336576,
"align": 4096,
"devices": [
{
"chardev": "dax0.0",
"size": 16909336576
}
]
},
"numa_node": 0
}
]
}
The order of the list in the output reflects the order for correlating between an
NMEM DIMM and a namespace/DAX device. For example, in the above output:
The first block of devices is the DIMMs. Under each DIMM, there is an
l
NMEM device grouping. (In the example output, the device groupings are
nmem1 and nmem0. Each bracket contains a device.
The order of the NMEM devices correlates to the namespace grouping that
l
follows, in which nmem1 correlates to namespace1.0 and nmem0 correlates
to namespace0.0.
The output displaying the namespace also includes the DAX device name
l
(chardev), which is displayed as daxX.X.
15. In the output from the previous step, locate the namespace and subsequent
DAX device name (chardev) that correlates with the NMEM and DIMM serial
number displayed in the output in Step 11.
In the above example, where nmem0's namespace is namespace0.0, the DAX
device name is dax0.0.
16. Record the device's namespace and DAX device name in the NVDIMM
information table.
Results
You have discovered the namespace and DAX device name for the storage devices
that interact with the failed NVDIMM (or, in the case of a failed NVDIMM battery, all
NVDIMMs mounted on the server). You can now remove these storage devices from
the NVDIMM Acceleration Pool and FG Storage Pool.
Remove the storage devices that interact with the failed NVDIMM from the relevant
VxFlex OS FG Storage Pool and Acceleration Pool.
Before you begin
Ensure that you have admin rights for accessing the VxFlex OS GUI. If necessary, the
customer can give you the credentials.
About this task
Note:
In the following task, the term "failed NVDIMM" also refers to all NVDIMMs
mounted on the server in cases of a failed NVDIMM battery or failed system
board.
Configuring the System using the VxFlex OS GUI
Dell EMC VxFlex Ready Node AMS User Guide
213
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