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тАО01-21-2009 10:08 PM
тАО01-21-2009 10:08 PM
Solved! Go to Solution.
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тАО01-21-2009 10:21 PM
тАО01-21-2009 10:21 PM
Re: diff between dsk & rdsk
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тАО01-21-2009 10:24 PM
тАО01-21-2009 10:24 PM
Re: diff between dsk & rdsk
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тАО01-21-2009 10:36 PM
тАО01-21-2009 10:36 PM
Re: diff between dsk & rdsk
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тАО01-21-2009 11:36 PM
тАО01-21-2009 11:36 PM
Re: diff between dsk & rdsk
dsk are the block devices and rdsk are the correspondig raw device files.
IO through the block device files takes palce in blocks whereas that thru the character or raw device files takes place thru characters.
we use the raw device files while using the very basic operations on devices that include the charater based IO on the device
we use raw device files of the disks /dev/rdsk/cxtydz while doing pvcreate,mkboot,vgcfgrestore,diskinfo
we use block device files of the disks while with commands as vgcreate,vgextend,vgimport,vgexport.
we use raw dev files of the LVs like /dev/vg02/rlvol2 while doing newfs,extendfs on them.
we use block dev files for LVs thst is /dev/vg00/lvol1 etc we use lvextend,lvsplit,lvmerge,lvlnboot,lvrmboot,mount,umount etc.
regards
sujit
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тАО01-22-2009 02:34 AM
тАО01-22-2009 02:34 AM
Re: diff between dsk & rdsk
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тАО01-22-2009 02:42 AM
тАО01-22-2009 02:42 AM
Re: diff between dsk & rdsk
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тАО01-24-2009 04:51 AM
тАО01-24-2009 04:51 AM
Solution"dsk" is called block device file.when accessing device via block device file,system reads and write data through a BUFFER in memory,rather than transferring data directly to the physical disk.
advantage: improve input and output to physical disk
"rdsk" it is a character device file also called as raw device file.It transfer data to the device one character at a time.
Tape drives are typically accessed via character device file.
Hope this will help you.
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тАО02-12-2009 09:48 AM
тАО02-12-2009 09:48 AM
Re: diff between dsk & rdsk
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тАО02-06-2011 02:40 AM
тАО02-06-2011 02:40 AM