|From:||Douglas Gilbert <firstname.lastname@example.org>|
|To:||SCSI development list <email@example.com>|
|Subject:||[ANNOUNCE] ddpt, yet another dd variant|
|Date:||Wed, 22 Sep 2010 15:46:02 -0400|
|Cc:||linux-kernel <firstname.lastname@example.org>, Mark Knibbs <email@example.com>|
ddpt is yet another variant of the venerable Unix dd command line utility. Some features found in ddpt which are not found in the current (GNU) dd implementation: - sparse writing (i.e. don't write buffer if all zeros) - write sparing (i.e. don't write buffer if already same as destination) - resume (after the copy has been interrupted) - trim on output of copy, self trim (pt interface only) - send output to a second file (see 'of2=' option) - access devices directly via pass-through interface, bypassing file system - accept numeric command line arguments in hexadecimal - explicit controls over how much data is read into the copy buffer and then written to output (separate from the logical block sizes of any device involved) For those familiar with the sg3_utils package, ddpt is a rewrite of the sg_dd utility. ddpt removes the special support for the SCSI generic (sg) driver features found in sg_dd. This allows ddpt to use other SCSI pass-throughs such as bsg in Linux plus the SCSI pass-throughs found in FreeBSD, Solaris and Windows. ddpt has been almost 2 years in the making. Every time I prepared to release it, the most frequent contributor to this project, Mark Knibbs, would have another feature request or correction in my Inbox. Time to get it out the door. Note that ddpt is not meant to be an exact replacement for dd. ddpt changes some dd defaults. For example, if the output file (i.e "of=") is not given, ddpt does not output anything; dd will send the output to stdout which is not much fun if the input is a terabyte of binary data. The initial release version number is 0.91 . For more information and downloads see: http://sg.danny.cz/sg/ddpt.html A release announcement has been sent to freshmeat.net . Doug Gilbert -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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