oh wait, 2.6 yes? then forget my bugreport (running 2.4.26-NANO) On Mon, Apr 18, 2005 at 11:26:03PM +1000, Douglas Gilbert wrote: > sdparm is a new command line utility designed to get and set > SCSI disk parameters (cf hdparm for ATA disks). More generally > it gets and sets mode page information on SCSI devices or devices > that use a SCSI command set (e.g. CD/DVD drives (any transport) > and SCSI tape drives). > > The elements within mode pages are addressed via acronyms > (e.g. "WCE" for "write cache enable" in the caching mode > page). There is also numeric addressing of the form: > <start_byte>:<start_bit>:<num_bits> > This symbolic or numeric addressing should be more > convenient for changing parameters than the techniques used > by scsiinfo, sginfo and sg_wr_mode. > > A GUI wrapping sdparm would be a useful extension. > It could show the mode page as found in the standard or > the vendor's product manual with attributes such as > "changeable" represented by colour or shading. > > I hope to add VPD pages in the future. sdparm shares some > code with sg3_utils but is currently independent; they may > share a library (libsgutils) in the future. > > A tarball, rpms and a "deb" can be found on > http://www.torque.net/sg . > Currently, the most complete documentation is in the > man page. > > > Examples (taken from the man page): > To list the common (mode) parameters of a disk: > > sdparm /dev/sda > > To see all parameters for the caching control mode page: > > sdparm --page=ca /dev/sda > > To get the WCE values (current changeable default and > saved) in hex: > > sdparm -g WCE -H /dev/sda > 0x01 0x00 0x01 0x01 > > To get the WCE current value in hex: > > sdparm -g WCE=1 -H /dev/sda > 0x01 > > To set the "write cache enable" bit in the current page: > > sdparm --set=WCE /dev/sda > > To set the "write cache enable" bit in the current and > saved page: > > sdparm --set=WCE --save /dev/sda > > To set the "write cache enable" and clear "read cache > disable": > > sdparm --set=WCE --clear=RCD --save /dev/sda > > The previous example can also by written as: > > sdparm -s WCE=1,RCD=0 -S /dev/sda > > To re-establish the manufacturer?s defaults in the > current and saved caching control mode page: > > sdparm --page=ca --defaults -save /dev/sda > > If an ATAPI cd/dvd player is at /dev/hdc then its common > (mode) parameters could be listed with: > > sdparm /dev/hdc > > > Comments, suggestions and patches welcome. > > > Doug Gilbert > - > : send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html Folkert van Heusden Auto te koop, zie: http://www.vanheusden.com/daihatsu.php Op zoek naar een IT of Finance baan? Mail me voor de mogelijkheden. -------------------------------------------------------------------- UNIX admin? Then give MultiTail (http://vanheusden.com/multitail/) a try, it brings monitoring logfiles to a different level! See http://vanheusden.com/multitail/features.html for a feature-list. -------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE Get your PGP/GPG key signed at www.biglumber.com!
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