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Shell Programming and Scripting
awk : Need Help in Understanding a command
Post 302955166 by rahul2662 on Tuesday 15th of September 2015 04:54:03 AM
09-15-2015
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LEARN ABOUT CENTOS
diskscan
diskscan(1M) System Administration Commands diskscan(1M) NAME
diskscan - perform surface analysis SYNOPSIS
diskscan [-W] [-n] [-y] raw_device DESCRIPTION
diskscan is used by the system administrator to perform surface analysis on a portion of a hard disk. The disk portion may be a raw parti- tion or slice; it is identified using its raw device name. By default, the specified portion of the disk is read (non-destructive) and errors reported on standard error. In addition, a progress report is printed on standard out. The list of bad blocks should be saved in a file and later fed into addbadsec(1M), which will remap them. OPTIONS
The following options are supported: -n Causes diskscan to suppress linefeeds when printing progress information on standard out. -W Causes diskscan to perform write and read surface analysis. This type of surface analysis is destructive and should be invoked with caution. -y Causes diskscan to suppress the warning regarding destruction of existing data that is issued when -W is used. OPERANDS
The following operands are supported: raw_device The address of the disk drive (see FILES). FILES
The raw device should be /dev/rdsk/c?[t?]d?[ps]?. See disks(1M) for an explanation of SCSI and IDE device naming conventions. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |x86 | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
addbadsec(1M), disks(1M), fdisk(1M), fmthard(1M), format(1M), attributes(5) NOTES
The format(1M) utility is available to format, label, analyze, and repair SCSI disks. This utility is included with the diskscan, addbad- sec(1M), fdisk(1M), and fmthard(1M) commands available for x86. To format an IDE disk, use the DOS format utility; however, to label, ana- lyze, or repair IDE disks on x86 systems, use the Solaris format(1M) utility. SunOS 5.10 24 Feb 1998 diskscan(1M)