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HP-UX Disk crash?

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Special Forums Hardware Filesystems, Disks and Memory HP-UX Disk crash?
# 8  
Old 09-07-2007
Quote:
Originally Posted by Perderabo
This command:
dd if=/dev/rdsk/c5t6d0 bs=4096 of=/dev/null
tries to read the entire disk and copy it to /dev/null. It may do nothing for the broken disk. But if it works, it usually causes some activity indication such as the green light flashing. You should draw a little picture of your JBOD cabinet and run the command for each disk to map them out. If you ID all of the good disks, the one that is left must be the bad disk. Once you ID a disk, use your interrupt character, usually cntl-c to kill the dd.
Thx for your help. This probably was the best solution.

Regards,
Christian
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LEARN ABOUT HPUX

vgcfgbackup

vgcfgbackup(1M) 														   vgcfgbackup(1M)

NAME

       vgcfgbackup - create or update LVM volume group configuration backup file

SYNOPSIS

       vg_conf_path] vg_name

DESCRIPTION

       The command saves the LVM configuration for a volume group in a default or alternate configuration backup file (see the option).

       By default, runs automatically each time an LVM command changes the LVM configuration.  In this case, it always uses the default configura-
       tion backup file.  An existing default configuration backup file is renamed with an extension of

   Options and Arguments
       recognizes the following options and arguments:

	      vg_name		  The path name of a volume group.

	      Save the configuration using an alternate file name specified by
				  vg_conf_path.

				  If is omitted, the default file name is in the form:

				  base_vg_name is the base name of vg_name.  For example, if vg_name is specified as base_vg_name is

	      Update the configuration backup file with the latest LVM configuration.
				  Only those physical volumes added since the configuration backup file was last modified need to be online.

				  If is omitted, all physical volumes for vg_name must be online.

RETURN VALUE

       exits with one of the following values:

	      Successful completion.
	      Failure.
		     Errors occurred when information from the volume group was being accessed.

EXTERNAL INFLUENCES

   Environment Variables
       determines the language in which messages are displayed.

       If is not specified or is null, it defaults to "C" (see lang(5)).

       If any internationalization variable contains an invalid setting, all internationalization variables default to "C" (see environ(5)).

EXAMPLES

       Back up LVM configuration information for volume group in the default backup file

       Update LVM configuration information corresponding to volume group in the default backup file

       Back up LVM configuration information for volume group in the alternate configuration backup file

WARNINGS

       It is recommended that any alternate configuration backup file be created in the root file system (as is the case  with	the  default  path
       name).  This facilitates easy volume group recovery during maintenance mode, such as after a system crash.

AUTHOR

       was developed by HP.

SEE ALSO

       vgcfgrestore(1M).

																   vgcfgbackup(1M)