PowerScale OneFS Upgrade Planning and Process Guide

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Back up custom settings

Most settings are preserved during a OneFS upgrade. However, documenting and backing up custom settings enables you to reapply any settings that are not preserved during the upgrade process.

Document and back up the following custom settings:

Table 1. Custom Setting SpecificationsThe following table displays the specifications for each setting.
Setting	Description	Recommendation
SMB audit logging	If you have an audit log directory in /ifs, you might have custom SMB logging settings configured.	After upgrading, you must reconfigure SMB audit logging. See File System Auditing with the Common Event Enabler (CEE) for more information about SMB audit logging.
Passwords for local user accounts	After you upgrade, you might have to reset the passwords of the local user accounts that you configured on the cluster. Other users should be prepared to reset the passwords of their local accounts after the upgrade.	Make a list of the local accounts and their passwords before you upgrade.
sysctl parameters	If you changed the default value that is assigned to one or more sysctl parameters by editing the /etc/mcp/override/sysctl.conf file, the etc/mcp/templates directory, or the /etc/local/sysctl.conf file, you might need to reset the parameter after you upgrade. If you modified a sysctl parameter by editing another file—for example, the /etc/sysctl.conf file—the change will not be preserved during the upgrade.	PowerScale does not recommend modifying sysctl parameters unless you are instructed to do so by Dell Technologies Support. If you must modify a sysctl parameter, configure the parameter in the /etc/mcp/override/sysctl.conf file to ensure that the change is preserved when you upgrade a node or a cluster. Before you upgrade, document your custom sysctl parameters and back up the /etc/mcp/override/sysctl.conf, the etc/mcp/templates directory, and the /etc/local/sysctl.conf files. For more information about making sysctl changes persist through upgrades, see KB article 000102543 and KB article 000083411.
Cron jobs	Cron jobs settings that were not configured in the /etc/mcp/override/crontab.smbtime file are not preserved during an upgrade.	Document and back up custom cron job settings or configure them in the /etc/mcp/override/crontab.smbtime file before you upgrade. After you upgrade, you might have to modify a cron job to accommodate changes to OneFS commands.