HP Serviceguard NFS Toolkit LTU
- HPE Multi-Computer/ServiceGuard NFS Toolkit - box pack - 1 server
- Box pack
- Networking applications - monitoring & performance management, system & remote management
- 1 server
Wanting to figure out what a Network File System can do for you? The HP Multi-Computer/ServiceGuard (MC/ServiceGuard) is a specialized facility for protecting mission-critical applications from a wide variety of hardware and software failures. With MC/ServiceGuard, multiple - up to 16 - nodes (systems) are organized into an enterprise cluster that delivers highly available application services to LAN-attached clients. Feel free to scroll down below for more details. For information about various other hardware and software technologies, be sure to search on Rack Simply!
- NFS, AutoFS, Cable FS
- NFS consists of the following set of daemons:
- nfsd is an NFS server-side daemon, responsible for handling the majority of all NFS server requests, except mount requests and locking requests.
- biod is a client side daemon (asynchronous block I/O daemon), whose purpose is to increase the performance of remote file access.
- mountd is a daemon, which processes the file system mount requests.
- Network Lock Manager (NLM) protocol which manages the file locking is implemented.
- Network Status Monitor (NSM) protocol was created to work in conjunction with NLM and manage the task of recovering file locks after a system failure. HP-UX implements the NSM protocol.
- AutoFS works with NFS to automatically mount and unmount file systems as needed.
- CacheFS is a client side caching mechanism that stores data retrieved from NFS servers to the local file system of the client to
reduce the redundant network traffic.
- Both NFSv2 and NFSv3 are supported over TCP and UDP
- Major differences between NFSv2 and NFSv3:
- NFSv2 clients can access files as large as 2GB. NFSv3 clients can access files as large as 2TB.
- NFSv3 supports safe asynchronous writing.
- NFSv3 supports better file attribute retrieval and caching as compared to NFSv2.
- A new procedure READIRPLUS is supported in NFSv3. In case of NFSv2, the list of files and the attributes of the files in a
directory are handled as two different requests (READDIR and LOOKUP request). In case of NFSv3, it is handled by
READDIRPLUS as a single request, which is a combination of READDIR and LOOKUP procedures.