Penyebab RPM Mesin Turun Saat AC Hidup

Indikasi suatu ketidaknormalan sistem distribusi bahan bakar pada mesin mobil saat AC Hidup yaitu bisa diamati dari panel RPM Meter. Parameter nilainya RPM yang terlalu rendah ini bisa dilihat diantara 500 sampai 600 rpm, dan kondisi normal berada diatas 750 rpm.

Beberapa hal yang menyebabkan turunnya rpm saat AC hidup bisa disebabkan karena debu atau kotoran yang mengendap, endapan endapan ini biasanya berada di throttle body, metode sederhana dalam upaya menormalkan kerja mesin salah satunya dengan cara membersihkannya dengan cairan Carburator Cleaner atau Injektor Cleaner.

Posted By adminblog09:17

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Instalasi Agent Zabbix di CentOS

Berikut langkah-langkah dalam Instalasi Agen Zabbix diCentOS, Semoga bermanfaat

1. Menambahakan repository

CentOS/RHEL 7:
# rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/7/x86_64/zabbix-release-2.2-1.el7.noarch.rpm

CentOS/RHEL 6:
# rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/6/x86_64/zabbix-release-2.2-1.el6.noarch.rpm

CentOS/RHEL 5:
# rpm -Uvh http://repo.zabbix.com/zabbix/2.2/rhel/5/x86_64/zabbix-release-2.2-1.el5.noarch.rpm

2. Upgrade Yum

server@vmhos:~$ yum upgrade

3. Instalasi agent zabbix

server@vmhos:~$ yum install zabbix zabbix-agent

4. Konfigurasi zabbix_agentd

server@vmhos:~$ sudo vi /etc/zabbix/zabbix-agentd.conf

 ### Option: EnableRemoteCommands
#       Whether remote commands from Zabbix server are allowed.
#       0 - not allowed
#       1 - allowed
#
# Mandatory: no
# Default:
EnableRemoteCommands=1


### Option: Server
#       List of comma delimited IP addresses (or hostnames) of Zabbix servers.
#       Incoming connections will be accepted only from the hosts listed here.
#       If IPv6 support is enabled then '127.0.0.1', '::127.0.0.1', '::ffff:127.0.0.1' are treated equally.
#
# Mandatory: no
# Default:
# Server=

Server=zabbix.myserver.co.id

### Option: Hostname
#       Unique, case sensitive hostname.
#       Required for active checks and must match hostname as configured on the server.
#       Value is acquired from HostnameItem if undefined.
#
# Mandatory: no
# Default:
# Hostname=

#Hostname=Zabbix server

5. Cek status service zabbix

server@vmhos:~$ /etc/init.d/zabbix-agent status

6. Bila status service masih Off, lakukan Starting Service

server@vmhos:~$ /etc/init.d/zabbix-agent start

7. Konfig service zabbix-agent agar selalu on ketika server dalam keadaan power on atau reboot

server@vmhos:~$ chkconfig --level 235 zabbix-agent on 

Posted By adminblog11:25

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Volume /boot Is Full

server@vmhost:~$ df -h

Filesystem                  Size  Used Avail Use% Mounted on

/dev/mapper/root   63G   59G  1.2G  99% /

none                        4.0K     0  4.0K   0% /sys/fs/cgroup

udev                        5.9G  4.0K  5.9G   1% /dev

tmpfs                       1.2G  592K  1.2G   1% /run

none                        5.0M     0  5.0M   0% /run/lock

none                        5.9G     0  5.9G   0% /run/shm

none                        100M     0  100M   0% /run/user

/dev/sda1                   228M  209M  7.5M  100% /boot

server@vmhos:~$ du -sh *

4.0K    autorestart.sh

8.0K    vboxtool.log

53G     VirtualBox VMs





Atau

server@vmhos:~$  du -h --max-depth=1
12K     ./.cache
53G     ./VirtualBox VMs
8.0K    ./.ssh
452K    ./.rpmdb
2.6M    ./.VirtualBox
53G     .

server@vmhos:~$ sudo apt-get clean

server@vmhos:~$ rm -rf ~/.local/share/Trash

server@vmhos:~$ dpkg -l linux-image-\* | grep ^ii
ii  linux-image-3.13.0-61-generic 3.13.0-61.100  amd64 Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii  linux-image-3.13.0-62-generic  3.13.0-62.102 amd64  Linux kernel image for version 3.13.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-29-generic   3.2.0-29.46    amd64    Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-37-generic  3.2.0-37.58   amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-48-generic    3.2.0-48.74     amd64    Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-79-generic    3.2.0-79.115   amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-80-generic   3.2.0-80.116  amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-82-generic   3.2.0-82.119  amd64 Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-83-generic  3.2.0-83.120   amd64  Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-84-generic  3.2.0-84.121  amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-85-generic    3.2.0-85.122  amd64    Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-86-generic   3.2.0-86.124    amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-87-generic  3.2.0-87.125     amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-3.2.0-88-generic  3.2.0-88.126      amd64   Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii  linux-image-extra-3.13.0-61-generic 3.13.0-61.100 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii  linux-image-extra-3.13.0-62-generic 3.13.0-62.102 amd64 Linux kernel extra modules for version 3.13.0 on 64 bit x86 SMP
ii  linux-image-generic  3.13.0.65.71  amd64    Generic Linux kernel image
ii  linux-image-server   3.13.0.65.71     amd64   Transitional package.

server@vmhos:~$  uname -r

3.13.0-65-generic

server@vmhos:~$ sudo apt-get purge linux-image-3.13.0-61-generic linux-image-3.13.0-62-generic linux-image-3.2.0-29-generic linux-image-3.2.0-37-generic linux-image-3.2.0-48-generic linux-image-3.2.0-79-generic linux-image-3.2.0-80-generic linux-image-3.2.0-82-generic linux-image-3.2.0-83-generic linux-image-3.2.0-84-generic linux-image-3.2.0-85-generic  linux-image-3.2.0-86-generic linux-image-3.2.0-87-generic

server@vmhos:~$ sudo update-initramfs -u  # remakes boot ramdisk

server@vmhos:~$ sudo update-grub2  # re-creates boot menu

server@vmhos:~$ find /boot -type f -printf "%-16s %p\n" | sort -nr | head -n 10

server@vmhos:~$ df -h
Filesystem                  Size  Used Avail Use% Mounted on
/dev/mapper/root   63G   32G   29G  53% /
udev               5.9G  4.0K  5.9G   1% /dev
tmpfs              1.2G  584K  1.2G   1% /run
none               5.0M     0  5.0M   0% /run/lock
/dev/sda1          228M   60M  157M  28% /boot

Semoga Bermanfaat..

Posted By adminblog15:00

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Solusi echo 0 > /proc/sys/kernel/hung_task_timeout_secs

Cek konfigurasi sysctl

serverblog@server $ sudo sysctl -p

Jika belum ada untuk 

vm.dirty_background_ratio = 5

vm.dirty_ratio = 10 

maka ditambahkan dengan cara 

sudo vi /etc/sysctl.conf

Tambahkan di 2 baris terakhir

vm.dirty_background_ratio = 5
vm.dirty_ratio = 10

Simpan dan keluar

serverblog@server $ sudo reboot

 Semoga bermanfaat

Posted By adminblog09:41

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