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Full Discussion: Sysinfo output for lvm commands
Top Forums Shell Programming and Scripting Sysinfo output for lvm commands Post 303026380 by gsiva on Monday 26th of November 2018 11:13:49 PM
Old 11-27-2018
Sysinfo output for lvm commands
Hi folks,


I have created a sysinfo script to capture the system information on daily basis which run in cron jobs.

Whereas, the output saved in the file are getting disapperared after some times..

Mainly for eg: the lvm commands like pvs,lvs, vgs, lvdisplay, pvdisplay..



Code:
#!/bin/bash
#get date in dd-mm-yyyy format
NOW=$(date +"%d-%m-%Y-%H:%M:%S")
 
# Create the directory if does not exist
mkdir -p /root/SYSINFO/`hostname`/


# create output file name
OUTPUT="/root/SYSINFO/`hostname`/sysinfo.`hostname`.$NOW.log"
 
# Assign the fd 3 to $OUTPUT file
exec 3> $OUTPUT


echo "***********[ LVDISPLAY ] *************" >&3
lvdisplay >&3
echo >&3
echo "***********[ PVDISPLAY  ]************" >&3
pvdisplay >&3
echo >&3
echo "*********** VGDISPLAY ***************" >&3
vgdisplay  >&3
echo >&3
echo "***********[ PVSCAN ] ****************" >&3
pvscan  >&3
echo >&3
echo "***********[ VGSCAN ] ***************" >&3
vgscan  >&3
echo >&3
echo "***********[ LVSCAN ] ***************" >&3
lvscan  >&3
echo >&3
echo "***********[ PVS  ]******************" >&3
pvs >&3
echo >&3


When i run the script, i got the message while executing it:
# sh sysinfo.sh


Code:
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on lvdisplay invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on pvdisplay invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on vgdisplay invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on pvscan invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on vgscan invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on lvscan invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on pvs invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on vgs invocation. Parent PID 118041: sh
File descriptor 3 (/root/SYSINFO/APDSMPPD01/sysinfo.APDSMPPD01.27-11-2018-11:28:18.log) leaked on lvs invocation. Parent PID 118041: sh


Not sure what is the causing the saved outputs gets disappeared.



-Siva
 

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LEARN ABOUT OSF1

uudemon.cleanu

uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME

       uudemon.admin,  uudemon.cleanu,	uudemon.hour,  uudemon.poll  -	Administrative shell scripts for polling remote systems, cleaning up spool
       directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons

SYNOPSIS

       These shell scripts reside in the following directory:
	  /usr/lib/uucp

DESCRIPTION

       All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the  scripts,  remove
       the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.

       This  script  reports  status  to  the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
       results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID  (uucpa)	or
       root.  This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
       mand is run with the following parameters: -C7, -D7, X2, -o2, -W1.  This script runs the uusched and uuxqt daemons in the background.  This
       script  polls  the  systems  listed  in	the  /usr/lib/uucp/Poll file.  The uudemon.poll script should be scheduled before the uudemon.hour
       script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.

FILES

       Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files.  Contains the uucp file.

RELATED INFORMATION

       Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)

       Files: /usr/lib/uucp delim off

																	uudemon(4)
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