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# Table of Contents
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- [Command Description](#command-description)
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- [Command usage](#command-usage)
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- [Example](#example)
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- [Operating system support](#operating-system-support)
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## Command Description
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2021-08-19 11:08:54 -07:00
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This operation will read the media inserted in the physical device and measure how fast it can be read sequentially.
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It's not intended as a benchmark, but as a detector of damaged sectors, sectors that are losing readability, etc. When
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finished it will check how fast can the device seek and report speed statistics.
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## Command usage
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```bash
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Aaru -d [true/false] -v [true/false] media scan -h [true/false] -b [ibglog] -m [mhddlog] <device-path/aaru-remote-host>
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```
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`-d, --debug [true/false]` shows debug output *(default false)*
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`-v, --verbose [true/false]` shows verbose output *(default false)*
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`-h, --help [true/false]` shows help screen for the command instead of running it, ignores all other switches *(default
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false)*
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`-b, --ibg-log [ibglog]` writes a log in the format used by ImgBurn
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`-m, --mhdd-log [mhddlog]` writes a log in the format used by MHDD
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`<aaru-remote-host>` connects to an Aaru Remote Host with aaru:///
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## Example
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FreeBSD: `Aaru media scan /dev/cd0`
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Linux: `Aaru media scan /dev/sdb`
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Windows: `Aaru media scan \\.\PhysicalDrive3`
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## Operating system support
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| Device Type | FreeBSD | MacOS | Linux | Windows |
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|--------------|----------|--------|--------|----------|
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| SCSI Block device | Yes | No¹ | Yes | Yes |
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| SCSI MultiMedia device | Yes | Not yet² | Yes | Yes |
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| SCSI Streaming device | Yes | No¹ | Yes | Yes |
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| Parallel ATA | No³ | No¹ | Yes | Yes |
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| Serial ATA | Yes | No¹ | Yes | Yes |
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| USB | Partial⁴ | Partial⁵ | Yes | Yes |
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| FireWire | Partial⁶ | Partial⁵ | Yes | Partial⁶ |
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| PCMCIA | Partial⁷ | Partial⁵ | Yes | Partial⁷ |
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| SecureDigital / MultiMediaCard | Not yet⁸ | No¹ | Yes | Untested⁹ |
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1. macOS only allows talking with MultiMedia devices.
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2. Support for MultiMedia devices in macOS will be added if users require it
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3. Not supported due to upstream bug
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4. USB descriptors are not retrieved
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5. Only MultiMedia devices can be supported and descriptors will not be retrieved
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6. FireWire descriptors are not retrieved
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7. PCMCIA CIS is not retrieved
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8. Support will come with FreeBSD 12-RELEASE
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9. Should work, untested due to no available hardware
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