VMware VM e1000 Detected Tx Unit Hang
VMware VM e1000 Detected Tx Unit Hang Fedora Server 41 virtualHW.version = "18" Symptoms e1000 0000:02:00.0 ens32: Detected Tx Unit Hang ~]$ sudo journalctl -kApr 05 11:31:17 fedora kernel: e1000 0000:02:00.0 ens32: Detected Tx Unit Hang Tx Queue <0> TDH <58> TDT <5d> next_to_use <5d> ...
Upgrading from RHEL 7.8 to RHEL 7.9
Upgrading from RHEL 7.8 to RHEL 7.9 Pacemaker Corosync Cluster Oracle Database 11g Planning an upgrade ~]# cat /etc/redhat-releaseRed Hat Enterprise Linux Server release 7.8 (Maipo)~]# uname -aLinux pacemaker01 3.10.0-1127.el7.x86_64 #1 SMP Tue Feb 18 16:39:12 EST 2020 x86_64 x86_64 x86_64 GNU/Linux~]# pcs statusCluster name: clusterStack: corosyncCurrent DC: pacemaker01-hb (version 1.1.21-4.el7-f14e36fd43) - partition with quorumLast updated: Thu Apr 2 22:06:55 2026Last change: Thu Apr ...
Upgrading from RHEL 7.9 to RHEL 8.10
Upgrading from RHEL 7.9 to RHEL 8.10 Planning an upgrade Verify that the current OS and kernel version. ~]# cat /etc/redhat-releaseRed Hat Enterprise Linux Server release 7.9 (Maipo)~]# uname -r3.10.0-1160.el7.x86_64 To determine whether the upgrade will be inhibited due to NIC naming. ~]# [ $(ip link | egrep '^[0-9]+: eth[0-9]+:' | wc -l) -ge 1 ] && [ $(readlink /sys/class/net/* | grep -v '/virtual/' | wc -l) -ge 2 ] && echo 'In-place upgrade will be inhibited!' Downlo...
High CPU Usage on RedHat 7.8
High CPU Usage on RedHat 7.8 Symptoms ksoftirqd/0 High CPU. Tasks: 254 total, 2 running, 252 sleeping, 0 stopped, 0 zombie%Cpu(s): 0.4 us, 6.2 sy, 0.0 ni, 0.8 id, 57.3 wa, 0.0 hi, 35.2 si, 0.0 stKiB Mem : 995712 total, 73416 free, 804532 used, 117764 buff/cacheKiB Swap: 2097148 total, 1847020 free, 250128 used. 25080 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 6 root 20 0 0 0 0 R 94.7 0.0 11:...
The Disk is RAW and Cannot be Formatted on WSFC
The Disk is RAW and Cannot be Formatted on WSFC Windows Server WSFS Symptoms 非正常删除 windows2012 R2 故障转移集群后，重新安装系统后，发现磁盘变成 RAW 并且联机后格式化无法顺利完成。 Cause 由于是非正常删除集群，导致这些磁盘依然被上一个集群的 PR Key（SCSI-3 Reservation）锁定着，导致这些磁盘被占用而不能访问和格式化。 Solution 对其中一台节点的异常磁盘分别执行如下清理保留磁盘命令。 Clear-ClusterDiskReservation -Disk <disk_number> SCSI 锁是多台主机用来操作 LUN 的基本机制。在 Windows 存储环境中，当多台 Windows 主机需要访问一个 LUN 的情况下，例如 Windows Cluster 环境，就会用到 SCSI 锁。
Windows Server MPIO
Windows Server MPIO Install. Install-WindowsFeature -Name Multipath-IO Configure. PS C:\> Set-MSDSMGlobalLoadBalancePolicy -Policy RRPS C:\> Get-MSDSMGlobalDefaultLoadBalancePolicyRRmpclaim -empclaim -v -dmpclaim -s -d Show the LUN wwn/uid. mpclaim -s -d <disk> Reference ・ Multipath I/O (MPIO) troubleshooting guidance
Lenovo System x3850 X6 Service Manual
Lenovo System x3850 X6 Service Manual Hardware Replacement ・ Removing the standard I/O book | ASU Save config. asu64 show --host 192.168.70.125 --user USERID --password PASSW0RDasu64 save <system_config>asu64 show SYSTEM_PROD_DATA > <system_vpd>asu64 fodcfg reportkeyasu64 fodcfg exportkeyasu64 show VPD > <component_vpd> Restore config. asu64 restore <system_config>asu64 fodcfg installkeyasu64 set SYSTEM_PROD_DATA.SysInfoProdName <machine_type_model>asu...
Install OpenClaw on Windows 11 WSL2
Install OpenClaw on Windows 11 WSL2 openclaw statusopenclaw healthopenclaw gateway status AI Model openclaw plugins enable qwen-portal-authopenclaw gateway restartopenclaw models auth login --provider qwen-portal --set-defaultopenclaw models set qwen-portal/coder-modelopenclaw models status
Installing NetBox on Rocky Linux 9.7
Installing NetBox on Rocky Linux 9.7 NetBox: v4.5.4 Operation System: Rocky Linux 9.7 System Settings ~]$ sudo dnf check-update~]$ sudo dnf -y upgrade~]$ sudo setenforce 0~]$ sudo sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config Installing PostgreSQL 18 # Install the repository RPM:~]$ sudo dnf install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-9-x86_64/pgdg-redhat-repo-latest.noarch.rpm# Install PostgreSQL:~]$ sudo dnf install -y postgresql18-server# Option...
