Dell Server with Red Hat Installation
DRAC (Dell Remote Access Card) Setup
Re-Build the Dell Utility Partition
Post Installation Instructions
Appendix A – Red hat Linux Package Selections
Appendix B – Sysctl.conf entry details
DRAC (Dell Remote Access Card) Setup
The default IP address of the DRAC card is 192.168.0.120. Overload the NIC on the PC you are using with an address on the DRAC’s subnet in order to connect to it. (i.e. 192.168.0.200) Later on, you can change the DRAC’s network info from within the DRAC GUI.
BIOS Setup
1) Set the hostname
3) Make sure the TIME/DATE is set properly in the BIOS
RAID Setup
1) Reboot the server and press the advertised
2) Using the utility, create RAID 1 sets with the available disk (accept all of the default settings)
3) Before exiting the RAID utility, remember to “Initialize” the RAID Sets. This is an available option within the utility.Re-Build the Dell Utility Partition
After re-doing the RAID config in the step above, the Dell factory installed utility partition will have been wiped out. Using the Dell “Server installation and setup CD” (only CD that is bootable), reload the Dell utility partition.
Register the Redhat License
Log on to the redhat.com website and activate the license that came with the server.
Linux Disk Partition Setup
Note: Use Rescue mode to setup the disk partitions
1) Reboot the server and boot to the Redhat install CD Disk 1 or the DVD
2) Type “linux rescue” to enter into Redhat rescue mode
3) Once at the command prompt, type fdisk /dev/sda and begin creating the file system partitions. Here is the output of the partitions.
*** Note: When setting up the swap areas use the following guidelines:
1-2GB of real memory or less – Create 1.5 times real memory
2 – 4GB of real memory – Create 1 times real memory
4GB or greater – Create .75 times real memory
[root@PBOADQ1A ~]# fdisk -l
Disk /dev/sda: 146.1 GB, 146163105792 bytes
255 heads, 63 sectors/track, 17769 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 45 361431 83 Linux
/dev/sda2 46 17769 142368030 8e Linux LVM
Installing the OS
1) Reboot the server and boot to the Redhat install CD Disk 1 or the DVD
2) Hit Enter to start the Redhat installation
2) Following screen is shown CD/DVD is checked in this section. It's so long, so Skip it.
3) Click 'Next' button to proceed
4) Select the language that you want to use during the installation. Click on Next
5) Select keyboard type. Click on Next
6) Enter the Installation Number. Click on Next
7) Change partition layouts to Create custom layout. Click on Next
8) Now need to mount the partition created earlier
9) Now Click on LVM to create the volume group
10) Click on Add to create the logical volumes. Repeat the step to add more logical volumes
11) Click on OK
12) Click on Next
13) Boot Loader section, click on Next
14) The section to configure for networking. Click 'Edit' button to set config.
15) Uncheck the IPv6 if you don't need to it. DHCP is unnecessary for server usage. And input your server's IP address in IPv4 section like below.
16) Proceeds with the server hostname, domain name, gateway & DNS
17) Set timezone and go next.
18) Set root password and go next.
19) This is the section for selecting software’s. It's not recommended to install much software first. Check a box 'Customize now' and go Next.
20) Uncheck boxes all first. Next, check a box 'Development Tools' ‘Development Libraries’ ‘X software Development. These Tools, especially gcc which is included in this, are often needed, so it's better to install now.
21) Click on Desktop Environment and select GNOME Desktop Environment
22) Click on Servers Select Printing Support, Server Configuration Tools & Windows File server, FTP server
23) Click on Base System select Administration Tools, Legacy software Support, System Tools and click on next.
24) Click on Next
25) Installation Started.
26) Installation has finished. Click ‘Reboot’.
27) Click on Forward
28) Click on Forward
29) Disabled the firewall
30) Disabled the SELinux
31) Enable Kdump
32) Set the Date & time
33) Enable the Network Time protocol
34) Register with Red Hat Network
35) Click on Forward
36) Enter the username & password for the Red Hat Network
37) Click on Forward
38) Click on Forward
39) Click on Forward
40) Click on Finish
Post Installation Instructions
1) Once the machine has rebooted to a command prompt, login as root.
Note: If the machine booted to graphical mode, press the proper keystrokes to switch to text mode. If this is the case, you will need to edit the inittab file to set the machine to boot to text mode.
2) Hosts File - Edit the host file as follows:
127.0.0.1 localhost.localdomain localhost [ identical for all servers ]
x.x.x.x [hostname.domainname.com] [hostname]
192.168.10.2 smtp.example.com smtp
Notes:
· The 1st line should always read as it does above no matter what server you are setting up.
· The 2nd line should always be the IP address and hostname of the server.
· The 3rd line should always read as it does above no matter what server you are setting up.
3) Passwd - Edit the /etc/passwd file and give root a description. Note: don’t use the domain name in the hostname.
i.e. root:x:0:0:root – [hostname]:/root:/bin/bash
4) File System Partitions – If you did not FDISK all of the available disk in the beginning of this procedure, do it now. Use FDISK to create the remaining disk partitions and then format them using the following file system creation command:
mkfs.ext3 /dev/datavg/d01
5) FSCK Settings – Set the max mounts FSCK setting to 100 and interval to 365 days on all partitions:
example 1 tune2fs –c 100 –i 365d /dev/rootvg/rootlv
example 2 tune2fs –c 100 –i 365d /dev/sda1
6) Vncserver -Setup vncserver – all this entails is typing >vncserver and then giving it a password. Make the password the same as the root password.
7) Dateconfig - Pop a vncsesson and then run dateconfig. Use dateconfig to make sure the correct date and time are setup
8) Sendmail.mc - Edit the /etc/mail/sendmail.mc file. Make the following changes:
Before:
dnl define(`SMART_HOST',`smtp.your.provider')dnl
dnl MASQUERADE_AS(`mydomain.com')dnl
After:
define(`SMART_HOST',`smtp.example.com')dnl
MASQUERADE_AS(`example.com')dnl
Note1: remember to run the “make” command from the /etc/mail dir after modifying the sendmail.mc file.
Note2: remember to restart sendmail after modifying this file (>service sendmail restart)
Note3: mail may not work until firewall rule is added to allow smtp traffic
Note4: make sure MX records are added in DNS (To find MX for records go to http://www.mxtoolbox.com/ give the domain name you want know the MX records)
9) /etc/sysctl.conf – Add the following entries to the sysctl.conf file:
# Oracle specific customizations
kernel.sem = 256 32000 100 142
kernel.shmall = 2097152
kernel.shmmax = 4294967295
kernel.shmmni = 4096
kernel.msgmax = 8192
kernel.msgmnb = 65535
kernel.msgmni = 2878
fs.file-max = 6815744
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
# special sysctl parameters
kernel.sysrq = 1
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
10) /etc/security/limits.conf – Add the following lines to the limits.conf file:
## Defining Oracle specific Limits
* hard nofile 327680
* soft nofile 327679
* hard nproc 139264
* soft nproc 139264
# End of file
11) CUPS - Cups is now installed by default. Use chkconfig to enable it for level 2345 if this has not already been done.
Setup the cupsd.conf file. To do this, locate and modify the following sections accordingly:
1) Locate this section:
Listen localhost:631
And change it to
Listen 631
2) Locate this section
Restrict access to the server.
Add a line
Allow all
3) Locate this section
Restrict access to the admin pages
Add a line
Allow all
4) Locate this section
Restrict access to configuration files
Add a line
Allow all
12) Dell Open Manage – Install the latest Open Manage “Managed Node” software.
13) Enable services like ftp, cups, ntp and make sure its configured for autostart on server reboot
14) Create a LVM for the data partition(partitions holding data other than operating system)
15) Add the entries of the mount points to the /etc/fstab file and make you the file system check is disabled in the fstab entry by making the entry as 0 0.
Appendix A – Red hat Linux Package Selections
Use yum to install these packages on RHEL 5.6 (Note: some will have already been installed)
gcc-4.1.2-50.el5.x86_64
gcc-c++-4.1.2-50.el5.x86_64
glibc-2.5-58.el5_6.3.i686
glibc-2.5-58.el5_6.3.x86_64
glibc-common-2.5-58.x86_64
glibc-devel-2.5-58.i386
glibc-devel-2.5-58.x86_64
libgcc-4.1.2-50.el5.i386
libgcc-4.1.2-50.el5.x86_64
libstdc++-devel-4.1.2-50.el5.i386
libstdc++-devel-4.1.2-50.el5.x86_64
libgcc-4.1.2-50.el5.i386
libgcc-4.1.2-50.el5.x86_64
libstdc++-4.1.2-50.el5.i386
libstdc++-4.1.2-50.el5.x86_64
make-3.81-3.el5.x86_64
gdbm-1.8.0-26.2.1.i386
gdbm-1.8.0-26.2.1.x86_64
libXp-1.0.0-8.1.el5.i386
libXp-1.0.0-8.1.el5.x86_64
libaio-0.3.106-3.2.i386
libaio-0.3.106-3.2.x86_64
libgomp-4.4.4-13.el5.x86_64
libgomp-4.4.4-13.el5.i386
sysstat-7.0.2-3.el5.x86_64
util-linux-2.13-0.56.el5.x86_64
compat-libstdc++-296-2.96-138.i386
compat-libstdc++-33-3.2.3-61.i386
compat-libstdc++-33-3.2.3-61.x86_64
elfutils-libelf-devel-0.137-3.el5.x86_64
elfutils-libelf-devel-static-0.137-3.el5.el5.x86_64
libaio-devel-0.3.106-5.x86_64
unixODBC-2.2.11-7.1.i386
unixODBC-devel-2.2.11-7.1.i386
unixODBC-2.2.11-7.1.x86_64
unixODBC-devel-2.2.11-7.1.x86_64
kernel-headers-2.6.18-238.9.1.el5.x86_64
compat-db-4.2.52-5.1.i386
compat-db-4.2.52-5.1.x86_64
yum install gcc-4.1.2-50.el5.x86_64 gcc-c++-4.1.2-50.el5.x86_64 glibc-2.5-58.el5_6.3.i686 glibc-2.5-58.el5_6.3.x86_64 glibc-common-2.5-58.x86_64 glibc-devel-2.5-58.i386 glibc-devel-2.5-58.x86_64 libgcc-4.1.2-50.el5.i386 libgcc-4.1.2-50.el5.x86_64 libstdc++-devel-4.1.2-50.el5.i386 libstdc++-devel-4.1.2-50.el5.x86_64 libgcc-4.1.2-50.el5.i386 libgcc-4.1.2-50.el5.x86_64 libstdc++-4.1.2-50.el5.i386 libstdc++-4.1.2-50.el5.x86_64 make-3.81-3.el5.x86_64 gdbm-1.8.0-26.2.1.i386 gdbm-1.8.0-26.2.1.x86_64 libXp-1.0.0-8.1.el5.i386 libXp-1.0.0-8.1.el5.i386 libXp-1.0.0-8.1.el5.x86_64 libaio-0.3.106-3.2.i386 libaio-0.3.106-3.2.x86_64 libgomp-4.4.4-13.el5.x86_64 libgomp-4.4.4-13.el5.i386 sysstat-7.0.2-3.el5.x86_64 util-linux-2.13-0.56.el5.x86_64 compat-libstdc++-296-2.96-138.i386 compat-libstdc++-33-3.2.3-61.i386 compat-libstdc++-33-3.2.3-61.x86_64 elfutils-libelf-devel-0.137-3.el5.x86_64 elfutils-libelf-devel-static-0.137-3.el5.el5.x86_64 libaio-devel-0.3.106-5.x86_64 unixODBC-2.2.11-7.1.i386 unixODBC-devel-2.2.11-7.1.i386 unixODBC-2.2.11-7.1.x86_64 unixODBC-devel-2.2.11-7.1.x86_64 kernel-headers-2.6.18-238.9.1.el5.x86_64 compat-db-4.2.52-5.1.i386 compat-db-4.2.52-5.1.x86_64
The following packages (or versions of packages) are not part of the OS distribution media and must be downloaded separately (from http://oss.oracle.com/projects/compat-oracle/files/Enterprise_Linux/ for RHEL 5) and installed manually:
openmotif21-2.1.30-11.EL5.i386, xorg-x11-libs-compat-6.8.2-1.EL.33.0.1.i386
Create a symlink
ln -s /usr/lib/libgdbm.so.2.0.0 /usr/lib/libdb.so.2
Appendix B – Sysctl.conf entry details
Shmmax - Set the shmmax parameter (/proc/sys/kernel/shmmax) per the DBA’s recommendation. SHMMAX needs to be large enough to hold the largest SGA on the system we usually set SHMMAX to the same size as the available RAM on the machine.
The dynamic location for this parameter is in /proc/sys/kernel/shmmax
We need to also create a static location for this parameter in /etc/sysctl.conf. In order to see the format for how this parameter and value need to be in sysctl.conf, run sysctl –a from the command line.
Here is how it should be entered into sysctl.conf:
- Shared memory parameter
kernel.shmmax = 4294967295
To make the parameter value take effect immediately (instead of rebooting the machine), run the following command:
>echo 4294967295 > /proc/sys/kernel/shmmax
Note: here are the following values for systems with 2GB, 3GB and 4GB of RAM:
2GB – (1024*1024*1024*2) – 1 = 2147483648
3GB – (1024*1024*1024*3) – 1 = 3221225471
4GB – (1024*1024*1024*4) – 1 = 4294967295
Reboot is not necessary
File-max - Set the /proc/sys/fs/file-max parameter per the DBA’s recommendation. To increase the maximum number of allowable open files and avoid sever errors with the Oracle Apps at Stonewater, the file-max parameter needs to be modified.
This modification is necessary in order to avoid "Linux Error: 23: Too many open files in system" error in alert log.
The dynamic location for this parameter is in /proc/sys/fs/file-max
We need to also create a static location for this parameter in /etc/sysctl.conf. In order to see the format for how this parameter and value need to be in sysctl.conf, run sysctl –a from the command line.
Here is how it should be entered into sysctl.conf:
- Max allowable open files
fs.file-max = 6815744
To make the parameter value take effect immediately (instead of rebooting the machine), run the following command:
echo 65536 > /proc/sys/fs/file-max
Reboot is not necessary
Note: 6 Servers are Installed & configured, Four Servers are left for the Installation
posted by Arnab Mukherjee @ 4:40 PM
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