Dell PowerEdge R740 EMC NVDIMM-N Persistent Memory User Guide - Page 43

Installation, Verify Existing Filesystem, Read-Only Mode NVDIMM-N, Interleave, Interleave Setup

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Installation Dump the RHEL ISO onto the USB stick via dd command. # dd if=/home/dell/RHEL7.3.iso of=/dev/sdb bs=4M conv=noerror,sync BIOS boots the Linux kernel from USB. Follow the on-screen steps to finish installing RHEL. After the installation is completed, reboot the server. For detailed installation instructions, please refer to https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/ html/Installation_Guide/index.html Verify Existing Filesystem Press PowerOn button on the server When the OS is up running, $ su Verify contents stored on NVDIMM-Ns # cat /mnt/nvdimm0 # shutdown Read-Only Mode NVDIMM-N Press PowerON button on the server Follow the guidance in Section 4 to setup BIOS. Enable the Persistence Memory, disable "NVDIMM Interleave", enable "NVDIMM Read-Only". When OS is up and running, $ su To see whether it is writable # touch /mnt/nvdimm0/write.txt # shutdown Interleave For R740/R640, insert NVDIMM-Ns in memory slots of both CPU Sockets. For this example 6 NVDIMM-Ns are installed on CPU0, and 6 are installed on CPU1. Interleave Setup Press PowerOn button on the server Follow the guidance in Section 4 to setup BIOS. Enable the Persistence Memory, enable "NVDIMM Interleave", disable "NVDIMM Read-Only". Install RHEL or start OS if it is already installed Linux 43

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Installation
Dump the RHEL ISO onto the USB stick via
dd
command.
# dd if=/home/dell/RHEL7.3.iso of=/dev/sdb bs=4M conv=noerror,sync
BIOS boots the Linux kernel from USB.
Follow the on-screen steps to finish installing RHEL.
After the installation is completed, reboot the server.
For detailed installation instructions, please refer to
html/Installation_Guide/index.html
Verify Existing Filesystem
Press PowerOn button on the server
When the OS is up running,
$ su
Verify contents stored on NVDIMM-Ns
# cat /mnt/nvdimm0
# shutdown
Read-Only Mode NVDIMM-N
Press PowerON button on the server
Follow the guidance in Section 4 to setup BIOS.
Enable the Persistence Memory, disable “NVDIMM Interleave”, enable “NVDIMM Read-Only”.
When OS is up and running,
$ su
To see whether it is writable
# touch /mnt/nvdimm0/write.txt
# shutdown
Interleave
For R740/R640, insert NVDIMM-Ns in memory slots of both CPU Sockets. For this example 6 NVDIMM-Ns are installed on CPU0, and 6
are installed on CPU1.
Interleave Setup
Press PowerOn button on the server
Follow the guidance in Section 4 to setup BIOS.
Enable the Persistence Memory, enable “NVDIMM Interleave”, disable “NVDIMM Read-Only”.
Install RHEL or start OS if it is already installed
Linux
43