Need Help Running Fsck On Mounted Logical Volume

Hi All,

umounted all logical volume of tomcatvg successfully.But when tried to deactive Volume group using vgchange command show logical volume are in active state .Need help how to force de-active Volume group .


Actioned perfomed
================
vgchange -an tomcatvg


[root@porsche ~]# vgs
VG #PV #LV #SN Attr VSize VFree
tomcatvg 1 10 0 wz--n- 95.38g 8.88g


[root@porsche ~]# cat /etc/fstab | grep -i fs_opt_tomcat
/dev/tomcatvg/fs_opt_tomcat /opt/tomcat ext4 defaults 1 2
[root@porsche ~]#

fuser -km /opt/tomcat
umount /opt/tomcat

Still I could find logical volume in active state

[root@porsche ~]# lvs | grep -i appvg
fs_opt_tomcat tomcatvg -wi-ao---- 5.00g

Regards
Arun

Hi All,
I have drive /u01 mounted on /.
Earlier, the output of df -H did show /u01 entry. Now this command does not show any entry for "/u01". However, I can access all the data in it.
Can someone tell me what this issue is and how to resolve it?
Thank you in advance !!!

[root@D-8114 ~]# df -H
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
479G 213G 242G 47% /
/dev/sda1 104M 13M 86M 13% /boot
tmpfs 2.1G 0 2.1G 0% /dev/shm

[root@D-8114 ~]# cd /u01/

[root@D-8114 u01]# df -H /u01/
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
479G 213G 242G 47% /

Actual #

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg00-rootvol
25G 6.8G 17G 30% /
/dev/mapper/vg00-tmpvol
4.7G 594M 3.9G 14% /tmp
/dev/mapper/vg00-varvol
9.4G 907M 8.0G 10% /var
/dev/mapper/vg00-auditvol
120M 98M 17M 86% /var/log/audit
/dev/mapper/vg00-crashvol
45G 77M 43G 1% /var/crash
/dev/mapper/vg00-homevol
4.7G 44M 4.4G 1% /home
/dev/mapper/vg02-RhelRepo
9.9G 7.7G 1.7G 83% /var/repo
/dev/cciss/c0d0p1 251M 23M 216M 10% /boot
tmpfs 24G 460M 23G 2% /dev/shm
/dev/mapper/vg01-swap
46G 46G 0 100% /root/swapfile



Required #

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg00-rootvol
25G 6.8G 17G 30% /
/dev/mapper/vg00-tmpvol
4.7G 594M 3.9G 14% /tmp
/dev/mapper/vg00-varvol
9.4G 907M 8.0G 10% /var
/dev/mapper/vg00-auditvol
120M 98M 17M 86% /var/log/audit
/dev/mapper/vg00-crashvol
45G 77M 43G 1% /var/crash
/dev/mapper/vg00-homevol
4.7G 44M 4.4G 1% /home
/dev/mapper/vg02-RhelRepo
9.9G 7.7G 1.7G 83% /var/repo
/dev/cciss/c0d0p1 251M 23M 216M 10% /boot

Command used #
df -hx tmpfs -x swap -x iso9660

why?
to exclude swap and iso9660 filesystem type.

what is required now?
Option1:
Is there a way wherein we give both the file system type with only one "-x" in the above given command?
Option2:
How to declare this as a variable in the beginning of the script? e.g. TYPE=iso9660,swap,tmpfs,etc.

I am running two linux web-servers. One I am just setting up. On the other, I noted the following partition:
Code:

>df -h
Filesystem                      Size  Used Avail Use Mounted on
/dev/mapper/Machinename-root     27G  4.1G   21G  17 /
udev                            996M   12K  996M   1 /dev
tmpfs                           202M  792K  201M   1% /run
none                            5.0M     0  5.0M   0% /run/lock
none                           1006M  224K 1006M   1% /run/shm
/dev/sda1                       228M   90M  126M  42% /boot
/home/Amy/.Private               27G  4.1G   21G  17% /home/Amy

But on the one that I am installing, so far I get this:
Code:

>df -h
Filesystem              Size  Used Avail Use% Mounted on
udev                    996M   12K  996M   1% /dev
tmpfs                   202M  792K  201M   1% /run
none                    5.0M     0  5.0M   0% /run/lock
none                   1006M  224K 1006M   1% /run/shm
/dev/sda1               228M   90M  126M  42% /boot

How did I get /dev/mapper partition?

Hello,
I just want to know if it is possible to mount a share to /tmp on RHEL 6.6?

For example to mount <device hosting share>:/vol/share_name as /tmp
which is already mounted as follows:

Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/SDVol-LVtmp
1998672 512380 1381436 28% /tmp

Thank you.

Hi Forks,

I have centOS installed on VM & cpanel is installed,
Now i can see that /usr partition got full.

i.e. Output of df -h
root@linux [/]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hda2 18G 661M 16G 4% /
/dev/hda8 59G 4.3G 52G 8% /home
/dev/hda7 996M 431M 514M 46% /tmp
/dev/hda5 7.8G 7.2G 220M 98% /usr <-- FULL
/dev/hda3 7.8G 1.5G 5.9G 21% /var
/dev/hda1 190M 21M 160M 12% /boot
tmpfs 1005M 0 1005M 0% /dev/shm

But if i check under /usr it's shows only 4.9G,

root@linux [/]# du -sch /usr/
4.8G /usr/
4.8G total

wheres other size utilized?, Please let me know if any other detail is require.

Thanks

Hi All,
I had installed Cent OS 6.6 on sda. The RAID1 and LVM setup was on sdb and sdc. To practice well on recovering RAID and LVM after the OS reinstallation, I just reinstalled the OS. During first re installation of OS, I had selected all the mount points including RAID/LVM partitions as same as how those where mounted before the reinstallation, but the format was selected to only /, /others, /var. And after booting /dev/md0 and LVM partitions were set to active automatically and everything was mounted properly. Also there was no any data loss in the RAID/LVM partitions. So I could made sure that everything will be perfect if we carefully select the mount points during OS reinstallation by making sure the formating partitions.

Now I thouht of reinstalling OS once again but this time didn't select mount points for RAID/LVM partitions during OS reinstallation, thought for manual setup after the installation. So just selected /, /others, /var partitions to format. When it booted, I ran "cat /proc/mdstat" but it was taken /dev/md127(read only) instead of /dev/md0.
Code:

# cat /proc/mdstat 
Personalities : [raid1] 
md127 : active (auto-read-only) raid1 sdc[1] sdb[0]
      52396032 blocks super 1.2 [2/2] [UU]
      
unused devices: <none>

So now I just wanted to stop and restart this RAID array as /dev/md0. But I am not able to stop as it is giving following error.
Code:

# mdadm --stop --force /dev/md127
mdadm: Cannot get exclusive access to /dev/md127:Perhaps a running process, mounted filesystem or active volume group?

I made sure that no one RAID/LVM partitions are mounted.
Code:

# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1        15G  3.5G   11G  26% /
tmpfs           376M     0  376M   0% /dev/shm
/dev/sda2       4.7G  9.8M  4.5G   1% /others
/dev/sda3       2.9G  133M  2.6G   5% /var

But LVM is active
Code:

# pvdisplay 
  --- Physical volume ---
  PV Name               /dev/md127
  VG Name               data
  PV Size               49.97 GiB / not usable 4.00 MiB
  Allocatable           yes 
  PE Size               4.00 MiB
  Total PE              12791
  Free PE               5111
  Allocated PE          7680
  PV UUID               IJ2br8-SWHW-cf1d-89Fr-EEw9-IJME-1BpfSj
   
# vgdisplay 
  --- Volume group ---
  VG Name               data
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  19
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               0
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               49.96 GiB
  PE Size               4.00 MiB
  Total PE              12791
  Alloc PE / Size       7680 / 30.00 GiB
  Free  PE / Size       5111 / 19.96 GiB
  VG UUID               982ay8-ljWY-kiPB-JY7F-pIu2-87uN-iplPEQ
   
# lvdisplay 
  --- Logical volume ---
  LV Path                /dev/data/home
  LV Name                home
  VG Name                data
  LV UUID                OAQp25-Q1TH-rekd-b3n2-mOkC-Zgyt-3fX2If
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                10.00 GiB
  Current LE             2560
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:0
   
  --- Logical volume ---
  LV Path                /dev/data/backup
  LV Name                backup
  VG Name                data
  LV UUID                Uq6rhX-AvPN-GaNe-zevB-k3iB-Uz0m-TssjCg
  LV Write Access        read/write
  LV Status              available
  # open                 0
  LV Size                20.00 GiB
  Current LE             5120
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           253:1

As LVM is active on /dev/md127 it is not allowing to stop /dev/md127 raid array. So as I am fresher in RAID/LVM, expecting your kind help to make LVM inactive without any data loss and restart the RAID array as /dev/md0 and then re activate the LVM setup.
Expecting your kind reply, Thanks.

Hi All,

I have two scripts, the aim of these two scripts is, to check whether a particular script is running or not, if it wont runs, then throw a mail.

How i Achieved this output is, I wrote first script.

I created an infinite while loop which performs below steps

1. It creates a touch file
2. Triggers the script which needs to be monitored if its working or not.
3. Removes the touch file.

If the second step fails, then the remove file command will not happen and the script will stuck there itself.

I created an another script which checks the creation time of the touch file and if it is more than ten minutes, it means the second step in the first script is hanged, which also means that particular script is not working.

So if the creation time is more than 2 minutes the second script will throw a mail.

Below are the two scripts.

Code:

#!/bin/ksh



userid="chansd"

filename="/apps/log/check.txt"

while true ;do
touch $filename
pass=`/apps/eDMZ/call_st.ksh $userid`
sleep 20
rm $filename
done

Below script checks the file creation time and throws email if it is older than 2 minutes
Code:

#!/bin/ksh


filename="/apps/log/check.txt"

if [ -f "${filename}" ]
then
if test "`find $filename -mmin +2`"
then
echo "script is not working ! Please act on it" | mail -s "Script  is not working" Example@mail.com
fi


else

        exit 1

fi

What im going to do is

1. I am going to run the first script in background so it runs forever.
2. I am going to run the second script in cron forevry 5 mins to check the file creation time.

3. So if the first script hangs . I will kill the process using process id and after the issue resolves with the inner script, I will run the main script again.

I am new to Linux, Please let me know if this approach will work as expected.

Hi, i know this could seems like a "simple" question but after a lot fo try i can't seems to make it works, i am stuck on this. I am working on a sbc6000x board, linux 2.6.24, an embedded system.

I am working on a pretty nice project which when called like this run perfectly :
Code:

cd /bin
./apps

(/bin/apps don't works, it must be ./apps from the directory)

After searching a little about the startup i learned about rc.local and created it in /etc/init.d, rc.local look like this :

Code:

#!bin/sh
# /etc/rc.d/rc.local: Local system initialization script.
#

cd /bin
./apps
cd

Sadly it seems it is never called. I was thinking about maybe add cd /bin, /.apps to the end of the etc/profile but i don't know if profile can run command aside from simple scripts call.

Does anyone has an idea on why this don't work or on how i could do this ?

Hello,

I am facing an issue with a filesystem (/dev/sda3); I see space used on it (around 365GB) when I am looking at the host with "df -h" command.

Code:

[root@srv_omega /]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda3             443G  365G   56G  87% /
tmpfs                  95G   56K   95G   1% /dev/shm
/dev/sda1             484M   39M  421M   9% /boot
/dev/sdb1             3.6T  1.3T  2.2T  36% /hadoop/disk1
/dev/sdc1             3.6T  1.3T  2.2T  37% /hadoop/disk2
/dev/sdd1             3.6T  1.3T  2.2T  36% /hadoop/disk3
/dev/sde1             3.6T  1.3T  2.2T  37% /hadoop/disk4
/dev/sdf1             3.6T  1.3T  2.2T  36% /hadoop/disk5
/dev/sdg1             3.6T  1.3T  2.2T  36% /hadoop/disk6
/dev/sdh1             3.6T  1.3T  2.2T  36% /hadoop/disk7
/dev/sdi1             3.6T  1.3T  2.2T  36% /hadoop/disk8
/dev/sdj1             3.6T  1.3T  2.2T  36% /hadoop/disk9
/dev/sdk1             3.6T  1.3T  2.2T  36% /hadoop/disk10
/dev/sdl1             3.6T  1.2T  2.3T  36% /hadoop/disk11
/dev/sdm1             3.6T  1.3T  2.2T  36% /hadoop/disk12
/dev/sdn1             3.6T  1.3T  2.2T  36% /hadoop/disk13
/dev/sdo1             3.6T  1.3T  2.2T  37% /hadoop/disk14
/dev/sdp1             3.6T  1.1T  2.4T  30% /hadoop/disk15
cm_processes           95G  8.2M   95G   1% /var/run/cloudera-scm-agent/process

I have looked if any hidden file might cause the issue, no joy.

Code:

[root@srv_omega /]# pwd
/
[root@srv_omega /]#  ls -lrtha
total 121K
drwxr-xr-x    2 root root 4.0K Jun 28  2011 srv
drwxr-xr-x    2 root root 4.0K Jun 28  2011 mnt
drwxr-xr-x    2 root root 4.0K Jun 28  2011 media
drwxr-xr-x    2 root root 4.0K Dec 20  2012 cgroup
drwx------    2 root root  16K Jun  2  2014 lost+found
drwxr-xr-x    2 root root 4.0K Jun  2  2014 selinux
-rw-r--r--    1 root root    0 Jun  3  2014 .autorelabel
drwxr-xr-x   18 root root 4.0K Jun  5  2014 hadoop
drwxr-xr-x   21 root root 4.0K Jun  5  2014 var
dr-xr-xr-x    9 root root  12K Jun 20  2014 lib64
dr-xr-xr-x    2 root root  12K Jun 21  2014 sbin
dr-xr-xr-x    2 root root 4.0K Jun 21  2014 bin
dr-xr-xr-x    5 root root 1.0K Jun 22  2014 boot
dr-xr-x---    5 root root 4.0K Jun 22  2014 root
drwxr-xr-x    6 root root 4.0K Jun 22  2014 opt
drwxr-xr-x    3 root root 4.0K Dec 10 19:11 home
dr-xr-xr-x   13 root root 4.0K Dec 12 16:18 lib
dr-xr-xr-x 1140 root root    0 Apr 30 15:11 proc
drwxr-xr-x   13 root root    0 Apr 30 15:11 sys
-rw-r--r--    1 root root    0 Apr 30 15:11 .autofsck
drwxr-xr-x    2 root root    0 Apr 30 15:11 misc
drwxr-xr-x    2 root root    0 Apr 30 15:11 net
drwxr-xr-x   15 root root 4.0K Apr 30 15:12 usr
drwxr-xr-x   19 root root 4.6K Apr 30 15:12 dev
dr-xr-xr-x   27 root root 4.0K Apr 30 15:12 ..
dr-xr-xr-x   27 root root 4.0K Apr 30 15:12 .
drwxr-xr-x  122 root root  12K May  4 03:33 etc
drwxrwxrwt   16 root root 4.0K May  7 06:14 tmp

So I try to find where the space is used with a "du -sh" command

Code:

[root@srv_omega /]# pwd
/
[root@srv_omega /]# du -sh *
7.8M    bin
29M     boot
4.0K    cgroup
280K    dev
26M     etc
19T     hadoop
124K    home
144M    lib
26M     lib64
16K     lost+found
4.0K    media
0       misc
4.0K    mnt
0       net
7.9G    opt
du: cannot access `proc/9170/task/27326/fdinfo/538': No such file or directory
du: cannot access `proc/45119/task/45119/fd/4': No such file or directory
du: cannot access `proc/45119/task/45119/fdinfo/4': No such file or directory
du: cannot access `proc/45119/fd/4': No such file or directory
du: cannot access `proc/45119/fdinfo/4': No such file or directory
du: cannot access `proc/45160': No such file or directory
0       proc
3.8M    root
17M     sbin
4.0K    selinux
4.0K    srv
0       sys
3.9M    tmp
2.6G    usr
16G     var

So as far as I understand, only /hadoop is a suitable suspect (as cumulative size of all the other folders on "/" are well below the 365GB)

Code:

[root@srv_omega hadoop]# cd /
[root@srv_omega /]# cd /hadoop
[root@srv_omega hadoop]# ls -lrtha
total 72K
drwxr-xr-x  2 root root 4.0K Jun  5  2014 disk16
drwxr-xr-x 18 root root 4.0K Jun  5  2014 .
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk1
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk11
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk10
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk13
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk12
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk14
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk2
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk4
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk3
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk6
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk5
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk8
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk7
drwxr-xr-x  4 root root 4.0K Jun 22  2014 disk9
drwxr-xr-x  5 root root 4.0K Nov 19 20:02 disk15
dr-xr-xr-x 27 root root 4.0K Apr 30 15:12 ..

All folders from 1 to 15 are on different filesystems, so the folder disk16 seems to be the only option but there is nothing in it.

Code:

[root@srv_omega hadoop]# cd disk16/
[root@srv_omega disk16]# ls -lrtha
total 8.0K
drwxr-xr-x 18 root root 4.0K Jun  5  2014 ..
drwxr-xr-x  2 root root 4.0K Jun  5  2014 .
[root@srv_omega disk16]#

I just don't get it; no folder seems responsible for the "365Gb"...

Any idea on how I could try to find out where those "365GB" are ?