Server :: Install Oracle RAC On Two Servers, With Shared SAN Storage?
Feb 16, 2011
I am going to install Oracle RAC on two Servers, With shared SAN storage (Servers and Storage is IBM) OS = RHEL 5u5 x64 bit
And we used multipathing mechanism and created multipathing devices. i.e. /dev/mapper/mpath1. Then I created raw device /dev/raw/raw1 of this /dev/mapper/mpath1 Block device as per pre-reqs for Oracle Cluster. Every thing looks good, But we faced the performance issue as under.
when we run command :
#dd if=/dev/zero of=/dev/mapper/mpath1 bs=1024 count=1000
the writing rate is approx. 34 MB/s
But If we run command
#dd if=/dev/zero of=/dev/raw/raw1 bs=1024 count=1000
the writing rate is very slow like 253 KB/s
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Jan 14, 2010
I'm planning on setting up a home file server. I was wondering what platform would be recommended for something like this. The server would be used mainly for media storage which would be shared between an HTPC and a couple desktops and laptops. I was thinking of just getting whatever motherboard had the most SATA headers on it (which currently seems to be something P55-based) and setting up a RAID5 fakeraid with some 1.5 or 2TB drives and the OS in RAID1 with whatever drives I have laying around. It there anything flawed with this approach? P55 boards with 10 SATA headers are currently upwards of $200, which is kind of pricey. Is there a more economical route that I should consider? Also, are there any known problems with setting up a fakeraid like this using certain motherboard's SATA controllers?
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Sep 3, 2009
I built a CentOS 5 Linux cluster with GFS storage using local RAID volume and share it with gnbd_export/import on two web-servers. Now I need to expand that storage to another servers local volume. I saw the picture in the manual, but I don`t know, how can I create that scheme.
I can use gnbd_export on the second server and gnbd_import on the first. In that case I will have two volumes on the first storage and I can expand volume group, logical volume, etc on it.
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Feb 14, 2010
What is the current state of NFS failover (i.e. setting up two server with shared storage, with automatic failover if one fails?) I've seen a cookbook, but no details that would let me assess how well it works. There are lots of complex issues with data consistency, but the detailed information on that is years old. Our needs are fairly simple: 2 servers, a shared array, and I'm reasonably sure that we don't use locking. However we'd like failover to work reliably without loss of data.
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Mar 11, 2011
I'm interested in buying a new hardware for my company. The old server (now 10 years old) should be replaced with a new one. Till now, I was looking on different hardware suppliers, boards and different other places. I found a Tyan board [URL]. The hardware spec is quite interesting and the board would fullfill our claims.
how both storage devices will be supported by Ubuntu or Debian??
- SATA-Controller: AMD SP5100
- SAS-Controller: LSI 1068E
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Aug 2, 2011
Setup1: Two rack mounted servers with a common storage device serving as the home directories for users on the servers. The storage device is a gfs partition mounted on the servers as the home directory using SAS cables. These servers have RHEL 5.4 as the installed operating system.
Setup2: A standard tower server with Debian 6 as the operating system used for tape backups. This has a tape drive connected to it.
Question: How to mount the storage device of setup1 using NFS on the server in setup2.
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Jul 1, 2011
I am looking for the best/cheapest way to build a ubuntu server with 8tb of storage hanging off of it.
I don't feel it needs to be hardware raid, so more software raiding swap in and out failed disk drives.
The server itself normal duo core CPU with 2Gb of memory and i would like to have the internal drive of the O/S only.
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Nov 27, 2010
I'm a new user for oracle,tried to install oracle 10g on redhat linux 5 but gettinh the same error message.response/ runInstaller[oracle2@localhost database_10201]$ sh runInstaller _runInstaller: line 54:/tmp/database_10201/install/.oui: Permission denied_Doany one plz help me how to give full set of permisions to an user in linux to access a folder??
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Jan 18, 2010
I need some advice or tips or maybe your own experiences about building a home data storage or NAS.Here's some thoughts / requirements I think it should have:It should expandable. I'll stick a couple of 1TB HDDs and a little later I'll stick some moreIt should easily integrated to both Ubuntu and Windows 7. Ideally it'll be an integrated part of the filesystem.I'm thinking some sort of RAID as a backing up my data. RAID 1 seems like a such a waste but then again, these days, HDDs are cheap.And when I do add more HDDs, I'd like them to appear as one big storage unit instead of separate drives.Any suggestions and tips on how to go about this is welcome. Questions are plenty: should I go with server hardware or is bigger ATX case and standard hardware enough? I'll need some pointers so keep 'em coming
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Aug 18, 2010
I'm completely new to oracle and need to install oracle 11g onto my Linux box. But my Linux box currently has no X Term (KDE or Gnome).
Is there a way in which I can install this without the GUI ?
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Jan 4, 2010
I am connecting servers using NFS4 the shared directories are on servers running Debian 4 while the one who read from them is Debian 5.0.3. The problem is one of these shared servers suddenly stop responding and you cannot list it from Debian 5 server, also df hang, and the web application that is using it does not respond to requests that use this shared directory since it is blocked. Then the load on the server start to increase until the server cannot respond (over 90). I have found many entries in the syslog that refer to this like:
ma25555 kernel: [1200285.732919] nfs: server 10.xxx.xxx.xxx not responding, still trying
Dec 31 08:16:33 ma25555 kernel: [1200289.815378] INFO: task java:9702 blocked for more than 120 seconds.
Dec 31 08:16:33 ma25555 kernel: [1200289.835249] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
code....
I have tried the connection between the 2 servers using ping for one day and all are OK (zero lost)
There are 3 other servers that are running Debian 4 and are working fine.
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Aug 7, 2011
I used to have three partitions: Win7, Fedora 12 and a NTFS-Storage-Partition.Now I had to reinstall Win7, it doesn't see any files on the storage partition;Windows shows the whole rest of the disk including the linux partition as one drive with 7gb of 80gb free, I can also open it but then there is nothing in it.Linux is still working and everything on the storage partition is still there and accessible in linux.any suggestions? do i have to tell windows the partitions or does it have to do a scan or something?
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Jun 15, 2010
I have a server running CentOS 5.5 with KVM capabilities. I need to migrate all the VMs to another server with the exact same hardware specs. The problem is it is running on individual harddisks, not shared storage. What is the best way to migrate to minimise downtime?
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Mar 4, 2010
Ive been asked to investigate presenting the same SAN LUN to two or more RHEL5 hosts. The hosts are providing independent applications so theyre not clusters from an application perspective. The shared storage location would be used as a common area for imports/exports. Were hoping to reduce file transfer times between the hosts by eliminating the need to copy the files between two storage locations. Some of our hosts run Advanced Server and some are standard. Is there a file system that I can use that will allow multi-host access without running advanced server with clustering services on all hosts?
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Sep 15, 2010
I need a cluster-safe filesystem for a SAN shared storage in Slackware. Red Hat's GFS is the best/only solution?Given GFS support in a custom kernel, what about tools (mkfs,mount...)?
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Jul 8, 2009
I am working on the beginning of implementing a two-node cluster with shared storage (GFS) and IP address. Both machines are virtual on VMware ESX 3.5, that should not make a difference, but that is the background.current status is that I have a single node cluster built with only the IP address configured within the cluster. The issue that I am having is that I have configured a service to contain only the IP address resource, however, when I go into cluster management that "service" does not register. As such, I cannot bring it online, ping it, etc. below is my cluster.conf configuration:
<?xml version="1.0"?>
<cluster alias="tmbackup" config_version="10" name="tmbackup">
<quorumd device="/dev/sdb1" interval="1" min_score="3" tko="10" votes="3">
[code]....
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Oct 15, 2010
Having been a long-time Linux supporter, it was a no-brainer for me to push Linux as the OS when it was time to move my company's website(s) from an external host to an internal server. My company ponied up the bucks for an HP Proliant DL180 G5 server (this was about a year ago) upon which I installed Slackware 12.1 (I kinda default to Slackware, although in the past I've also used RedHat on the server and openSUSE on the desktop).
Well, it's now time to upgrade the OS on the server. Perhaps I'm a little late to the game on this, but I just recently found out about Oracle Enterprise Linux 5.5. Bad Oracle ju-ju aside, it looked to be a very good and stable server distro, especially when you consider the availability of Oracle support for it. So I've since installed OEL to a non-production server and have been testing it out.It looks to be a good match for my needs.
However, since installing OEL on my test server I've installed Ubuntu Desktop 10.10 on my home desktop (a 1.86ghz Intel Core 2 Duo HP xw4400 workstation) and in a VirtualBox VM on my work desktop (a 3.2ghz Intel Core i3 iMac) and... holy crap, it's the best desktop Linux I've ever had the pleasure of using. It will certainly replace Slackware as my default "go-to" Linux distro. Which has made me wonder about the Ubuntu Server offering and if it might not be a better fit for my webserver in the same way that Ubuntu Desktop is a better fit for my workstation.
Unfortunately, I don't have the time to pull down another server distro, install it, and test it unless I'm reasonably certain that it's going to give OEL a run for its money. So I turn to the forums and the knowledge of the users who frequent them: is Ubuntu Server a strong enough contender to OEL that I should take a more serious look at it? Or, like I'm hearing about the latest Ubuntu Netbook edition, would it not be worth my time if I'm happy with OEL so far?
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May 31, 2011
I am trying to install a file and print server for backup and storage using an opensuse 11.3 live CD but the CD loaded the complete desktop. How do i pare this down to a server install? Do I need to reinstall? I have a mixed network of opensuse, Ubuntu, and Windows 7.
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Jan 9, 2010
I have access to a unmanaged dedicated server on the net. I am considering loading Ubuntu Server to this for web/mail/ftp serving. If I install Ubuntu Desktop to my local machine is it possible for me to administer the server using Ubuntu Desktop (using the GUI)? I connect to the net over ADSL. Any guides/advice for setting up Ubuntu as a web/mail/ftp with a key focus on keeping to secure? I know how to install LAMP but as I have root I need to learn a little more than I did when I was on a shared host.
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Nov 28, 2010
How do I set up a server to where it does not give a password prompt to access a shared folder?
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Jun 8, 2010
I am trying to do the cluster storage with the Rock Cluster storage operating system . I have install the rock cluster on the main server . and I want to connect the client with the PXE boot . when I starting the client then it boot from the PXE boot into the mode of compute node. but it ask the where is to be stored the I have give the path..then server says that not able to find the directory path.
Steps:-
1) insert-ethers
2) client is started with the PXE boot.
3) it detects the dhcp .
4) At last it demand where is to be started by cd-rom, harddisk ,nfs etc.
then I started with the nfs and I have given the lanIp of server.and server is detecting the client but client is not finding the filesystem directory. into export partition directory but it is not taking path.
PATH:-
/export/rock/install it is not finding this path then it is not able to start the o/s from PXE boot..Is there any solution and manual of rock or anyother solution then u can reply to me...
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Jun 24, 2009
I try to set up a 5 nodes cluster and a shared Coraid Storage with conga but it fails with "Shared Storage Support" checked.The message is:'A problem occurred when installing packages: Packages of set "Clustered Storage" are not present in available repository' and it is shown under every node on the next sceen after I submit.The pc where conga runs is on the same subnet (192.168.xxx.xxx) and it has the same /etc/hosts of the other nodes.In that pc runs a proxy too and the nodes go out through it (that pc has 2 NICs)Every node (2.6.18-128.1.14.el5-xen-x86_64) is patched whith the last yum update (this morning) the same is for the pc (2.6.18-128.1.14.el5).Every node has 4 NICs , 2 NICc towards the storage the others in bonding towards the WAN.Every node is exactly alike, they have been installed with the ks.cfg generated from the first node and they all have the support for Clustering, Virtualization, and Clustered Storage.
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Jul 24, 2011
I've AMD64 system with Ubuntu 11.04 installed. It's been rough ride for me to install oracle-xe-universal. I've already spent more than 2 days on this. Still unsuccessful.
1) First I downloaded the packages libaio_0.3.104-1_i386.deb and oracle-xe-universal_10.2.0.1-1.1_i386.deb
2) Then I ran
sudo apt-get install bc (ran fine)
sudo dpkg -i --force-architecture libaio_0.3.104-1_i386.deb (ran fine)
sudo dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.1_i386.deb
(gave me dependency error for libc6 (>= 2.3.2), I modified the control file to remove dependency and rebuilt the package) (now worked fine) Oracle xe is now installed. Then I tried to start the DB it started but it's HTTP client never started. So I decided to uninstall the oracle-xe=universal. None of the sudo apt-get remove oracle-xe-universal command's didn't worked for me. So i went for manual uninstallation directions as per oracle link.
I ran the following command-
--Manually uninstalling Oracle 10g--
sudo rm -rf /usr/lib/oracle /etc/oratab /etc/init.d/oracle-xe /etc/sysconfig/oracle-xe /usr/share/doc/oracle_xe /usr/share/doc/oracle_xe_client
Then I again ran the following command to install oracle-xe
sudo dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.0_i386.deb
See below what I got as the output-
rocky@ubuntu:~/git/mygit/edas2/libaio$ sudo dpkg -i --force-architecture oracle-xe-universal_10.2.0.1-1.1_i386.deb
dpkg: warning: overriding problem because --force enabled:
package architecture (i386) does not match system (amd64)
[code]....
Even in applications menu I don't see the if oracle has been installed. So i conclude first time installation was ok but somehow http client didn't worked. After manual uninstallation, second installation didn't even loaded/installed the oracle-xe in init.d directory.
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Apr 1, 2011
I am trying to disable USB storage from servers.What I did is as following1> modprobe -vr usb_storage2> blacklist usb_storageIt is working fine. But root can again load the module into the kernel. [ modeprobe -v usb_storage ] want to restrict this also. My requirement is not even root can access the usb storage.
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May 14, 2010
I upgrade the system from 11.1 to 11.2 seems everything work fine, no error no warning, after a reboot the consol show : mount error while loading shared libraries: libvolume_id.so.1: Cannot open shared object file: No such file or directory. when I try to repair the system the repair tool cannot find the root partion,
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Feb 5, 2010
I just installed the Ubuntu 9.10 and then installed Oracle 10 Express and all went fine. I can access oracle on 127.0.0.1:8080/apex address however when I try to access the server on it's external ip address (192.168.1.14) even when I'm on my Ubuntu machine it's failing. I'm new to Linux so I'm sure this should be silly and simple issue but I can't find a way around it. I need this so I can access the oracle server from outside world (other nodes on the network).
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Jan 24, 2010
I'm running Ubuntu 9.10 with Kvm. I've used a howto to configure my network. Seems to work fine, I've installed the Virtual Machine manager, when I go to create my Virtual Machine, I see the the image is automatically created in /var/lib/libvirt/images. I have a totally separate path for my images. How to I configure a different image directory
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Mar 22, 2010
I wanna try to install ubuntu server on my poweredge 1955 with emc storage, but on the partitioning step it says:
"the following partitions will be formatted:
...<here goes all the lvms in the storage>..."
I already tried all the options in the partitioning step without success
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Jul 14, 2011
I trying to create a Cluster Linux with two servers and one storage, I have mounted some filesystems in both servers, but, when I create a file on server (1), I don't see the file on server (2).
Is that a problem with the linux or storage configuration ?.
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Oct 25, 2010
there is any other way to make oracledb on CentOS 5.4 and HP Proliant DL360 G5 Server fast access from a vb application. modified, reconfigured all to make faster but no use
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