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The Network Multimeter allows to attach a storage device which then can be used | The Network Multimeter allows to attach a storage device which then can be used for several storage-related functions: | ||
for several storage-related functions: | |||
* write traffic packet captures to the storage device instead of streaming the capture as a live download | * write traffic packet captures to the storage device instead of streaming the capture as a live download | ||
* use the Network Multimeter to analyze the contents of a packet capture file residing on the storage device | * use the Network Multimeter to analyze the contents of a packet capture file residing on the storage device | ||
* use the storage device for the packet ring buffer feature [[Generic_modules(Teil_1)#Capture_module|Capture module]] | * use the storage device for the packet ring buffer feature [[Generic_modules(Teil_1)#Capture_module|Capture module]] | ||
== ''' Managing storage devices ''' == | == ''' Managing storage devices ''' == | ||
The Network Multimeter supports disks formatted with an `ext4` filesystem and will | The Network Multimeter supports disks formatted with an `ext4` filesystem and will only use the first partition of a disk. If a compatible disk is attached it will be activated automatically and the Storage page willshow stats about the device as well as the contents. | ||
only use the first partition of a disk. If a compatible disk is attached it will be | |||
activated automatically and the Storage page | If an unformatted disk or a disk with an incompatible file system is attached it will show up on the Storage page where it can be formatted using the `Format`button displayed next to the device's type and size. After formatting the disk, it will be automatically activated for use as storage device. | ||
well as the contents. | |||
If an active storage device is to be disconnected from the Network Multimeter the Deactivate button on the Storage page can be used to deactivate the storage device. | |||
The page will show that no storage device is active anymore and now the device can be disconnected safely. | |||
For security reasons, the `Securely erase content` button allows for deleting the whole content of the disk. | |||
Everything on the disk is overwritten with randomly generated patterns that will make any attempts to recover the data very difficult. | |||
The erasing may take several hours depending on the size and the speed of the disk. | |||
If you want to use the disk after erasing, you have to format it afterwards. | |||
== ''' Working with storage contents''' == | == ''' Working with storage contents''' == | ||
The Network Multimeter will only show the top level directory of the storage device | The Network Multimeter will only show the top level directory of the storage device and interaction is only possible with files the reside in the top level directory. | ||
and interaction is only possible with files the reside in the top level directory. | |||
It is currently not supported to work with directories. | It is currently not supported to work with directories. | ||
Generic files which are not packet capture files will show with two buttons next to | Generic files which are not packet capture files will show with two buttons next to them. | ||
them. As the names suggest the Delete button will delete the file from the storage | |||
device and the `Download` button will start a browser download of this file. In | As the names suggest the Delete button will delete the file from the storage device and the `Download` button will start a browser download of this file. | ||
addition to these two buttons an Analyze PCAP button will show next to packet | |||
capture files. When this button is pressed the Network Multimeter will reset all | In addition to these two buttons an Analyze PCAP button will show next to packet capture files. | ||
statistics and start analyzing the packet capture file. Progress, statistics and | |||
the option to resume normal operation will appear at the top of the Storage page. | When this button is pressed the Network Multimeter will reset all statistics and start analyzing the packet capture file. | ||
Progress, statistics and the option to resume normal operation will appear at the top of the Storage page. | |||
== '''WebDAV''' == | == '''WebDAV''' == | ||
The Network Multimeter also provides access to the storage contents via WebDAV. For | The Network Multimeter also provides access to the storage contents via WebDAV. | ||
this, use the "Connect to server" or "Connect to a network drive" function on your | |||
computer and use the link https://<host name>/webdav. The credentials are the | For this, use the "Connect to server" or "Connect to a network drive" function on your computer and use the link https://<host name>/webdav. | ||
same as of the web interface. WebDAV is supported natively by all current operating | |||
systems. | The credentials are the same as of the web interface. | ||
If you have connection problems due to SSL certificate issues under Windows | |||
you may try 3rd party tools with WebDAV support. | WebDAV is supported natively by all current operating systems. | ||
If you have connection problems due to SSL certificate issues under Windows you may try 3rd party tools with WebDAV support. | |||
== '''iSCSI''' == | == '''iSCSI''' == | ||
A remote iSCSI target can be used as a storage device. The iSCSI target must be reachable | A remote iSCSI target can be used as a storage device. | ||
over the management network connection. | |||
To add an iSCSI target as storage device use the Configure iSCSI device button which | The iSCSI target must be reachable over the management network connection. | ||
is visible on the Storage page when no storage device is currently activated. In | |||
the displayed dialog you must enter the host which can be an IP address or host name | To add an iSCSI target as storage device use the Configure iSCSI device button which is visible on the Storage page when no storage device is currently activated. | ||
and may include a port number (e.g. 'storageServer:3260'). You must also enter the | |||
iSCSI Qualified Name (IQN)` of the iSCSI target on the iSCSI host. Using authentication | In the displayed dialog you must enter the host which can be an IP address or host name and may include a port number (e.g. 'storageServer:3260'). | ||
like CHAP is optional and if no authentication is to be used the User and Password` | |||
fields can be left empty. After confirming the dialog by pressing the Configure button | You must also enter the iSCSI Qualified Name (IQN)` of the iSCSI target on the iSCSI host. | ||
the iSCSI storage device will show up in the storage device list after a few seconds. | |||
The Allegro Network Multimeter will also try to activate a configured iSCSI target | Using authentication like CHAP is optional and if no authentication is to be used the User and Password` fields can be left empty. | ||
automatically after system startup. | |||
Once an iSCSI device has been configured the device can be modified or removed using the | After confirming the dialog by pressing the Configure button the iSCSI storage device will show up in the storage device list after a few seconds. | ||
Modify iSCSI device and Remove iSCSI device buttons on the Storage page. Only one | |||
iSCSI device can be used at a time. | The Allegro Network Multimeter will also try to activate a configured iSCSI target automatically after system startup. | ||
Once an iSCSI device has been configured the device can be modified or removed using the Modify iSCSI device and Remove iSCSI device buttons on the Storage page. | |||
Only one iSCSI device can be used at a time. | |||