Section 1: user commands and tools
NAME ngetlite – retrieve files from NNTP hosts SYNOPSIS ngetlite <listfiles…> DESCRIPTION ngetlite retrieves messages as described in each listfile. Listfiles are generated with: nget -w <listfile> <retrieval args> In almost all circumstances, you will want to download and decode directly with nget. However, in some cases ngetlite can be useful on computers with low…
NAME nget – retrieve files from NNTP (usenet news) hosts SYNOPSIS nget […] DESCRIPTION nget retrieves messages matching a regular expression, and decodes any files contained within. Multipart messages are automatically pieced together. Parts from multiple servers will be combined if needed. OPTIONS The order options are specified is significant. In general, an option will…
NAME ng4ex – NCAR Graphics High Level Utilities Example Programs SYNOPSIS ng4ex [-A] [-C] [-Fortran] [-NCL] [-cdf] [-csagrid] [-cssgrid] [-gui] [-anno] [-gsun] [-W workstation_type] [-app] [-basic] [-contourplot] [-fitgrid] [-labelbar] [-legend] [-primitives] [-mapplot] [-natgrid] [-ngmath] [-streamplot] [-shgrid] [-textitem] [-tickmark] [-title] [-vectorplot] [-xyplot] [-list] [-clean] [-n] name … DESCRIPTION ng4ex provides the user with access to several…
NAME nfstest_xid – Verify packets are matched correctly by their XID SYNOPSIS nfstest_xid <trace1> [<trace2> …] DESCRIPTION Search all the packet traces given for XID inconsistencies. Verify all operations in the NFSv4.x COMPOUND reply are the same as the operations given in the call. OPTIONS –version show program’s version number and exit -h, –help show…
NAME nfstest_sparse – Sparse file tests SYNOPSIS nfstest_sparse –server <server> [options] DESCRIPTION Verify correct functionality of sparse files. These are files which have unallocated or uninitialized data blocks as holes. The new NFSv4.2 operation SEEK is used to search for the next hole or data segment in a file. Basic tests verify the SEEK operation…
NAME nfstest_posix – POSIX file system level access tests SYNOPSIS nfstest_posix –server <server> [options] DESCRIPTION Verify POSIX file system level access over the specified path using positive and negative testing. Valid for any version of NFS. OPTIONS –version show program’s version number and exit -h, –help show this help message and exit -f FILE, –file=FILE…
NAME nfstest_pnfs – Basic pNFS functional tests SYNOPSIS nfstest_pnfs –server <server> [options] DESCRIPTION Verify basic pNFS functionality for file (both READ and WRITE), including opening a second file within the same mount and having a lock on the file. Also, verify basic pNFS functionality for a file opened for both READ and WRITE while reading…
NAME nfstest_pkt – Packet trace decoder SYNOPSIS nfstest_pkt [options] <trace1.cap> [<trace2.cap> …] DESCRIPTION Decode and display all packets in the packet trace file(s) given. The match option gives the ability to search for specific packets within the packet trace file. Other options allow displaying of their corresponding call or reply when only one or the…
NAME nfstest_lock – Locking tests SYNOPSIS nfstest_lock –server <server> [–client <client>] [options] DESCRIPTION Basic locking tests verify that a lock is granted using various arguments to fcntl. These include blocking and non-blocking locks, read or write locks, where the file is opened either for reading, writing or both. It also checks different ranges including limit…
NAME nfstest_io – I/O tool SYNOPSIS nfstest_io -d <datadir> [options] DESCRIPTION This I/O tool is used to create and manipulate files of different types. The arguments allow running for a specified period of time as well as running multiple processes. Each process modifies a single file at a time and the file name space is…
NAME nfstest_interop – NFS interoperability tests SYNOPSIS nfstest_interop –server <server> [options] DESCRIPTION Basic interoperability tests verify that a file written with different versions of NFS is written correctly. The contents of the file are verified by reading the file back using one of the NFS versions. The tests append different data from different versions of…
NAME nfstest_file – Find all packets for a specific file SYNOPSIS nfstest_file [options] -p <filepath> <trace1.cap> [<trace2.cap> …] DESCRIPTION Display all NFS packets for the specified path. It takes a relative path, where it searches for each of the directory entries given in the path until it gets the file handle for the directory where…
NAME nfstest_dio – Direct I/O tests SYNOPSIS nfstest_dio –server <server> [options] DESCRIPTION Functional direct I/O tests verify that every READ/WRITE is sent to the server instead of the client caching the requests. Client bypasses read ahead by sending the READ with only the requested bytes. Verify the client correctly handles eof marker when reading the…
NAME nfstest_delegation – Delegation tests SYNOPSIS nfstest_delegation –server <server> [–client <client>] [options] DESCRIPTION Basic delegation tests verify that a correct delegation is granted when opening a file for reading or writing. Also, another OPEN should not be sent for the same file when the client is holding a delegation. Verify that the stateid of all…
NAME nfstest_cache – NFS client side caching tests SYNOPSIS nfstest_cache –server <server> –client <client> [options] DESCRIPTION Verify consistency of attribute caching by varying acregmin, acregmax, acdirmin, acdirmax and actimo. Verify consistency of data caching by varying acregmin, acregmax, acdirmin, acdirmax and actimo. Valid for any version of NFS. OPTIONS –version show program’s version number and…
NAME nfstest_alloc – Space reservation tests SYNOPSIS nfstest_alloc –server <server> [options] DESCRIPTION Verify correct functionality of space reservations so applications are able to reserve or unreserve space for a file. The system call fallocate is used to manipulate the allocated disk space for a file, either to preallocate or deallocate it. For filesystems which support…
NAME NFStest – NFS Test Suite DESCRIPTION Provides a set of tools for testing either the NFS client or the NFS server, included tests focused mainly on testing the client. These tools include the following:.SS Test utilities package (nfstest) Provides a set of tools for testing either the NFS client or the NFS server, most…
NAME nfsometer – NFS performance measurement tool SYNOPSIS nfsometer [options] [mode] [[<server:path>] [workloads…]] DESCRIPTION nfsometer is a performance measurement framework for running workloads and reporting results across NFS protocol versions, NFS options and Linux NFS client implementations MODES Basic usage (no mode specified): nfsometer <server:path> [workloads…] This will fetch needed files, run traces, and generate reports, same…
NAME nfsiostat – Report input/output statistics for network filesystems (NFS). SYNOPSIS nfsiostat [ -h ] [ -k | -m ] [ -t ] [ -V ] [ interval [ count ] ] DESCRIPTION The nfsiostat command displays statistics about read and write operations on NFS filesystems. The interval parameter specifies the amount of time in…
NAME nfsiostat-sysstat (the nfsiostat command from the sysstat package) – Report input/output statistics for network filesystems (NFS). SYNOPSIS nfsiostat-sysstat [ -h ] [ -k | -m ] [ -t ] [ -V ] [ interval [ count ] ] DESCRIPTION The nfsiostat-sysstat command displays statistics about read and write operations on NFS filesystems. The interval…