CentOS

LINUX – Network Throughput Tuning

General Approach To check what setting your system is using, use 'sysctl name' (e.g.: 'sysctl net.ipv4.tcp_rmem'). To change a setting use 'sysctl -w'. To make the setting permanent add the setting to the file 'sysctl.conf'. [crayon-6990bc00bbec0318659379/] More…
CentOS

CentOS – How do I safely delete old kernel versions ?

package-cleanup: Using package-cleanup command which is a part of yum-utils package we can uninstall any number of old kernels automatically. As an example using --oldkernels --count=2 option with package-cleanup command the command…
ZFS ZOL

ZFS – CENTOS Downgrade

ZFS - Downgrade Commands for Centos: To do the downgrade/re-install dance: [crayon-6990bc00bc535770453704/] [crayon-6990bc00bc53d350316065/] [crayon-6990bc00bc540833912412/]
ZFS ZOL

ZFS – Tuning

ZFS tuning for SAS3 Storage Tank [crayon-6990bc00bc6e7036642559/] ZFS tuning for SAS3 ALL SSD + nVME Storage Tank [crayon-6990bc00bc6ee906024234/] Some more good advice: SvennD ZFS-Discuss
ZFS ZOL

ZFS – SNMP

ZFS - SNMP Extend Commands: [crayon-6990bc00bc8d4686001171/] LibreNMS: https://community.librenms.org/t/zfs-support/1839 https://docs.librenms.org/#Extensions/Applications/#zfs
ZFS ZOL

CentOS – NIC Teaming with LACP

A Comparison of Features in Bonding and Team Feature Bonding Team broadcast Tx policy Yes Yes round-robin Tx policy Yes Yes active-backup Tx policy Yes Yes LACP (802.3ad) support Yes (active only) Yes Hash-based…