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Secure erase cleanses all the data that is stored in the PMem unit, including encrypted data. This data
deletion method is recommended before returning or disposing a malfunctioning unit, or changing
PMem mode. To perform secure erase, go to Security ➙ Press to Secure Erase.
Alternatively, perform platform level secure erase with the following command in OneCLI:
onecli.exe config set IntelOptanePMEM.SecurityOperation "Secure Erase Without Passphrase"
--imm USERID:PASSW0RD@10.104.195.86
• PMem Configuration
PMem contains spared internal cells to stand in for the failed ones. When the spared cells are exhausted
to 0%, there will be an error message, and it is advised to back up data, collect service log, and contact
Lenovo support.
There will also be a warning message when the percentage reaches 1% and a selectable percentage
(10% by default). When this message appears, it is advised to back up data and run PMem diagnostics
(see the "Running diagnostics" section in the Lenovo XClarity Provisioning Manager documentation
version compatible with your server at
percentage that the warning message requires, go to Intel Optane PMems ➙ PMem Configuration, and
input the percentage.
Alternatively, change the selectable percentage with the following command in OneCLI:
onecli.exe config set IntelOptanePMEM.PercentageRemainingThresholds 20
--imm USERID:PASSW0RD@10.104.195.86
Where 20 is the selectable percentage.
RAID configuration
Using a Redundant Array of Independent Disks (RAID) to store data remains one of the most common and
cost-efficient methods to increase server's storage performance, availability, and capacity.
RAID increases performance by allowing multiple drives to process I/O requests simultaneously. RAID can
also prevent data loss in case of a drive failure by reconstructing (or rebuilding) the missing data from the
failed drive using the data from the remaining drives.
RAID array (also known as RAID drive group) is a group of multiple physical drives that uses a certain
common method to distribute data across the drives. A virtual drive (also known as virtual disk or logical
drive) is a partition in the drive group that is made up of contiguous data segments on the drives. Virtual drive
is presented up to the host operating system as a physical disk that can be partitioned to create OS logical
drives or volumes.
An introduction to RAID is available at the following Lenovo Press website:
https://lenovopress.com/lp0578-lenovo-raid-introduction
Detailed information about RAID management tools and resources is available at the following Lenovo Press
website:
https://lenovopress.com/lp0579-lenovo-raid-management-tools-and-resources
Deploy the operating system
Several options are available to deploy an operating system on the server.
ThinkSystem SR850 Setup Guide
126
https://pubs.lenovo.com/lxpm-overview/
). To adjust the selectable
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