HDDScan is a freeware utility for storage devices diagnostics (HDD, RAID, Flash). The program can scan storage device for Bad-blocks, show S.M.A.R.T. attributes and change some HDD parameters such as AAM, APM, etc.

Capabilities and requirements:
Supported storage devises:

* ATA/SATA HDD.
* SCSI HDD.
* USB HDD (see Appendix A).
* FireWire or IEEE 1394 HDD (see Appendix A).
* RAID volumes made of ATA/SATA/SCSI HDDs (surface tests only).
* USB Flash (surface tests only).

Storage device tests:

* Verification in linear mode.
* Reading in linear mode.
* Erasing in linear mode.
* Reading in Butterfly mode (synthetic random read).

S.M.A.R.T.:

* Reading and analyzing S.M.A.R.T. parameters from ATA/SATA/USB/FireWire HDD.
* Reading and analyzing Log Pages from SCSI HDD.
* S.M.A.R.T. tests running on ATA/SATA/USB/FireWire HDD.
* Temperature monitor on ATA/SATA/USB/FireWire/SCSI HDD.

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