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Storage: Difference between revisions
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Drop outdated firmware versions and reword
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The Allegro Network Multimeter supports disks formatted with an '''ext4 filesystem ''' and will only use '''the first partition''' of each disk. | The Allegro Network Multimeter supports disks formatted with an '''ext4 filesystem ''' and will only use '''the first partition''' of each disk. | ||
If a compatible disk is attached, a dialog will show up and offer to activate the disk as a storage device. | If a compatible disk is attached, a dialog will show up and offer to activate the disk as a storage device. Multiple storage devices can be active at the same time. The active storage device for which the properties and contents are shown can be selected at the top of the 'Storage' page. Next to the drop-down menu there is a little pen icon which allows to set an alternative name for the storage device (which is displayed e.g. in the capture dialog). | ||
The 'Storage' page will show stats about the selected device as well as the contents. | The 'Storage' page will show stats about the selected device as well as the contents. | ||
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[[File:Disk formatting and encryption.png|700x700px]] | [[File:Disk formatting and encryption.png|700x700px]] | ||
====Random, device specific passwords==== | ====Random, device specific passwords==== | ||
It is possible to use a randomly generated password for the encrypted storage device. When used, the storage can be activated and deactivated without entering the password. Also, the storage device is automatically activated on system start/restart. The password is stored encrypted on the device and cannot be moved a different device. The password is also deleted on a configuration reset of the Allegro Network Multimeter. Since the password is stored on the Allegro Network Multimeter, the storage device cannot be used on a different Allegro Network Multimeter without reformatting. When the key is removed (on configuration reset or reformat), it cannot be restored! | |||
=== Deactivation === | === Deactivation === | ||
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Everything on the disk is overwritten with randomly generated patterns, making attempts to recover data (near to) impossible. | Everything on the disk is overwritten with randomly generated patterns, making attempts to recover data (near to) impossible. | ||
Allegro Packets utilizes the | Allegro Packets utilizes the SATA (extended) secure erase instruction set, for SATA disks that support it. | ||
For NVME type | For NVME type SSDs, Allegro Packets utilizes the "Cryptographic Erase" instruction set. | ||
NOTE: The erasing may take several hours, depending on the size and the speed of the disk. After the secure erase process, a disk needs to be formatted before use. | NOTE: The erasing may take several hours, depending on the size and the speed of the disk. After the secure erase process, a disk needs to be formatted before use. | ||
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== SFTP == | == SFTP == | ||
The storage can be accessed via SFTP. | |||
The server is | The server is off by default and has to be turned on in 'Settings' > 'Remote access and Statistics Export' > 'SFTP Server'. | ||
Authentication is possible via a | Authentication is possible via a SSH key or the same credentials as of the web interface. | ||
Only the user with the role 'admin' are allowed to access the storage via | Only the user with the role 'admin' are allowed to access the storage via SFTP. | ||
The | The SSH key is configurable on a user basis in the user settings. | ||