PersistentMemAddressRangeScrub

[Swati_Shet2]

Hi all,

Could someone help me with PersistentMemAddressRangeScrub?

We have few servers and we have the same bios settings in those servers and Workload profile is set as Virtualization-Max Performance.

We used curl commands in order ro fetch the details from RBSU.

The PersistentMemAddressRangeScrub parameters doesnt list in few of the server's and in other few it does?

Is workload profile affecting it. Kindly help me with this.

[AmRa]

Verify if  Persistent Memory Address Range Scrub is enabled or disabled under Persistent Memory configuration.

Configuring Persistent Memory

System Utilities only displays this menu if you have installed Persistent Memory.

NOTE: This menu is not available from the F9 boot screen.

Procedure

From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Memory
Options > Persistent Memory Options.

Configure options.

Persistent Memory Backup Power Policy—Controls whether the system waits during system boot for batteries to
charge if sufficient battery backup power for the installed persistent memory is not available.

◦ Wait for Backup Power on Boot—The system waits during boot for batteries to charge.

◦ Continue Boot without Backup Power—The system boots even if sufficient battery backup power is not available.

If sufficient battery backup power is not available, the configured memory is not used by the operating system as

persistent storage or as system memory.

Persistent Memory Integrity Check
◦ Enabled—Persistent memory is checked during system boot to determine data integrity. Depending on the

Persistent Memory Address Range Scrub setting, discovered errors during the data integrity check are either

presented to the operating system for recovery, or cause the persistent memory to be mapped out and unavailable

to the operating system.

◦ Disabled—Disables data integrity checking. Any persistent memory unable to read data, or that has bad data might

cause uncorrectable errors that result a system crash.

Persistent Memory Address Range Scrub
◦ Enabled—Enables a supported OS to attempt recovery from an uncorrectable memory error detected in the

NVDIMM memory.

◦ Disabled—Disables the NVDIMM memory on the next boot after detecting an uncorrectable memory error in the

NVDIMM. If the NVDIMM memory Memory Interleaving option is enabled, a disabled NVDIMM includes all the

modules or regions within the set.

Save your setting.

For more information please refer UEFI System Utilities User Guide for HPE ProLiant Gen10, ProLiant Gen10 Plus Servers, and HPE Synergy

https://www.hpe.com/psnow/doc/a00016407en_us