No, nothing is to be installed in the base FreeNAS installation. You could create a jail, install mc or whatever in the jail, and mount your datasets as storage to that jail.
Joined Sep 16, Messages 2, I would organize it during the copy in Step 1 I assume that you are using some other workstation machine to do this - Windows, Mac, Linux. That way you already have your folder structure setup and then you can just move the folders to their proper location. Similar threads M. Permission problems when populating datasets as root cli. Replies 1 Views Sep 28, masl. Locked Moving Data Between Datasets. Replies 4 Views 2K. Aug 9, Knowltey. Feb 14, ProtoSD.
Can't move files between datasets via SMB. Replies 0 Views Nov 19, ciacnorris. Replies 8 Views 2K. When you are finished testing, either type killall iperf or close Shell to terminate the iperf server process. Netperf is a benchmarking utility that can be used to measure the performance of unidirectional throughput and end-to-end latency.
Before you can use the netperf command, you must start its server process using this command:. The following command will display the available options for performing tests with the netperf command. The Netperf Manual describes each option in more detail and explains how to perform many types of tests.
It is the best reference for understanding how each test works and how to interpret your results. When you are finished with your tests, type killall netserver to stop the server process.
For those options taking two parms, at least one must be specified; specifying one value without a comma will set both parms to that value, specifying a value with a leading comma will set just the second parm, a value with a trailing comma will set just the first.
To set each parm to unique values, specify both and separate them with a comma. For these options taking two parms, specifying one value with no comma will only set the first parms and will leave the second at the default value. To set the second value it must be preceded with a comma or be a comma-separated pair.
This is to retain previous netperf behaviour. IOzone is a disk and filesystem benchmarking tool. Before using IOzone, read through the IOzone documentation PDF as it describes the tests, the many command line switches, and how to interpret your results.
If you have never used this tool before, these resources provide good starting points on which tests to run, when to run them, and how to interpret the results:. You can receive a summary of the available switches by typing the following command. As you can see from the number of options, IOzone is comprehensive and it may take some time to learn how to use the tests effectively.
Starting with version 9. Since IOzone creates test data that is compressible, this can skew test results. Alternatively, consider temporarily disabling compression on the ZFS pool or dataset when running IOzone benchmarks. Originally it was a perl script created by Sun. Ideally, you want as many things fetching from cache as possible. Keep your load in mind as you review the stats. For random reads, expect a miss and having to go to disk to fetch the data.
For cached reads, expect it to pull out of the cache and have a hit. Like all cache systems, the ARC takes time to fill with data. This means that it will have a lot of misses until the pool has been in use for a while. It should be noted that performance tuning is more of an art than a science and that any changes you make will probably require several iterations of tune and test.
In particular, the value of pre-fetching depends upon the amount of memory and the type of workload, as seen in these two examples:. The advantage of these scripts is that they can be used to provide real time right now information, whereas the current GUI reporting mechanism is designed to only provide graphs charted over time.
This forum post demonstrates some examples of using these scripts with hints on how to interpret the results. To view ARC statistics in real time, specify an interval and a count. This command will display every 1 second for a count of five. Table When reading the tunable values, 0 means no, 1 typically means yes, and any other number represents a value. For example:. The ZFS tunables require a fair understanding of how ZFS works, meaning that you will be reading man pages and searching for the meaning of acronyms you are unfamiliar with.
If the tunable takes a numeric value rather than 0 for no or 1 for yes , do not make one up. Instead, research examples of beneficial values that match your workload. If you decide to change any of the ZFS tunables, continue to monitor the system to determine the effect of the change. Starting with version 9.
Since IOzone creates test data that is compressible, this can skew test results. Alternatively, consider temporarily disabling compression on the ZFS pool or dataset when running IOzone benchmarks. Originally it was a perl script created by Sun. Ideally, there will be as many things fetching from cache as possible. Keep the load in mind while reviewing the stats. For random reads, expect a miss and having to go to disk to fetch the data.
For cached reads, expect it to pull out of the cache and have a hit. Like all cache systems, the ARC takes time to fill with data. This means that it will have a lot of misses until the pool has been in use for a while.
It should be noted that performance tuning is more of an art than a science and that any changes made will probably require several iterations of tune and test.
Be aware that what needs to be tuned will vary depending upon the type of workload and that what works for one one network may not benefit another. In particular, the value of pre-fetching depends upon the amount of memory and the type of workload, as seen in Understanding ZFS: Prefetch.
The advantage of these scripts is that they provide real time information, whereas the current web interface reporting mechanism is designed to only provide graphs charted over time.
This forum post demonstrates some examples of using these scripts with hints on how to interpret the results. To view ARC statistics in real time, specify an interval and a count. This command will display every 1 second for a count of five. Table When reading the tunable values, 0 means no, 1 typically means yes, and any other number represents a value.
For example:. The ZFS tunables require a fair understanding of how ZFS works, meaning that reading man pages and searching for the meaning of unfamiliar acronyms is required. If the tunable takes a numeric value rather than 0 for no or 1 for yes , do not make one up. Instead, research examples of beneficial values that match the workload. If any of the ZFS tunables are changed, continue to monitor the system to determine the effect of the change.
It is recommended that the changes are tested first at the command line using sysctl. For example, to disable pre-fetch i. The output will indicate the old value followed by the new value. If the change is not beneficial, change it back to the original value.
If the change turns out to be beneficial, it can be made permanent by creating a sysctl using the instructions in Tunables. The supported models are listed in the man pages for the twe 4 and twa 4 drivers.
Before using this command, read its man page as it describes the terminology and provides some usage examples. Use the drives to create units and export them to the operating system. This forum post contains a handy wrapper script that will give error notifications. The MegaCli command is quite complex with several dozen options. The commands demonstrated in the Emergency Cheat Sheet can get you started. This command can be run manually from Shell to gather specific debugging information.
To see a usage explanation listing all options, run the command without any options:. Individual tests can be run alone. For example, when troubleshooting an Active Directory configuration, use:. To collect the output of every module, use -A :. See the zdb 8 manual page for more information.
Similar to screen, tmux can be detached from a screen and continue running in the background, then later reattached. Unlike Shell , tmux provides access to a command prompt while still giving access to the graphical administration screens.
To start a session, simply type tmux.
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