Resize a Linux LVM Disk Online: growpart, pvresize, and lvextend
Expand a Linux LVM disk online with growpart, pvresize, lvextend, and the correct XFS or ext4 filesystem growth command, including…
Real-world troubleshooting notes, runbooks, and tools for Linux, Kubernetes, Nginx/OpenResty, Elasticsearch, networking, and storage.
Infrastructure field guide
Start with the system or layer you are operating or troubleshooting.
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Routing, VPN, DNS, and connectivity
LVM, filesystems, disks, and RAID
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Commands and operational utilities
Expand a Linux LVM disk online with growpart, pvresize, lvextend, and the correct XFS or ext4 filesystem growth command, including…
Since a shared network disk is required internally for everyone to share, a samba service is needed.…
Diagnose Logstash 403 cluster_block_exception failures caused by writes to a read-only Elasticsearch index, then choose between cl…
Business systems are often subject to regular penetration testing and provide external Web services.…
A Kubernetes cluster deployed a few years ago needs to be gradually updated. Since I haven't recorde…
Preface Deploy a GPU computing server for private AI model training. This deployment uses the Ubuntu…
Background I encountered this problem because I had debugged the log before and created a topic and …
Preface Nowadays, the use of VPN is a very common way of working in enterprises. Some internal knowl…
Repair the NVIDIA kernel module with DKMS when nvidia-smi cannot communicate with the NVIDIA driver after a CUDA or driver change,…
Written in front In the past, the Linux system in the production environment used one disk to store …
Sometimes, for the convenience of the server environment, access to the Internet is prohibited regar…
Normalize the invisible ASCII group-separator character in Linux audit logs before Logstash Grok parsing, preventing repeated _gro…
Sometimes do projects, the party to the server security management is more stringent, the server env…
Configure Nginx WebSocket reverse proxy headers for ws and wss traffic, including Upgrade and Connection handling for persistent b…
Weekend rest at home, suddenly the alarm shows that the online service Down, after two minutes of no…