CentOS 5 :: Integration Of Drbd 8.0.16 In 5.3
Aug 19, 2010
Iam trying to integrate drbd 8.0.16 in 5.3 release.
Installation of drbd was successful but modinfo fails to identify drbd kernel module.
[root@inccishh0884 usbs]# /sbin/modinfo drbd
modinfo: could not find module drbd
[root@inccishh0884 usbs]#
[root@inccishh0884 usbs]# ls -l `find /lib/modules -name drbd.ko`
[Code].....
how i can make the modinfo to identify the drbd modules present in 2.6.18-128.4.1/extra folder.
Is there a drbd module available that matches exactly with the kernel version 2.6.18-128.el5
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Apr 13, 2010
I'm running RHEL 5.5 on two workstation for test DRBD and I get something that sound strange ...[URL] Quote:Protocol C. Synchronous replication protocol. Local write operations on the primary node are considered completed only after both the local and the remote disk write have been confirmed. As a result, loss of a single node is guaranteed not to lead to any data loss. Data loss is, of course, inevitable even with this replication protocol if both nodes (or their storage subsystems) are irreversibly destroyed at the same time. By far, the most commonly used replication protocol in DRBD setups is protocol C.
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Nov 4, 2009
I've been working at creating a highly available set of host servers for a linux diskless boot cluster.Each host machine is fitted with redundant power supplies and two 1TB drives in a Raid-1 configuration.When I first started this project they each had twin 160GB drives. In my original setup I had both nodes acting as primary systems so that I could mount /dev/drbd0 to my /data directory and see changes immediately.It had worked in the past where I could make a file in /data on the first machine and it would show up in the /data directory on the second machine. One day this had stopped working where if I made a file on the first machine it would display on the second one until I unmounted /data and remounted it to the /dev/drbd0 disk.
This is when I bought the new disks and decided to start from scratch. The weird thing is that if I make a file on the primary and remount on the secondary to see it and then delete it from the secondary and THEN delete it on the primary, the primary throws no error however it goes into read-only mode because it knows that file was already gone.Below is my configuration file, sda8 is an 820GB partition which is used for all of the data I want to replicate, currently populated with ~10GB of data. Sda7 is my metadisk partition which is 500MB large clearly more than needed by drbd.Also you will notice "incon-degr-cmd "halt -f";" is commented out. This is because when I go to actually use it drbd throws an error when reloading the configuration and I'm not sure why that is either
resource r0 {
protocol C;
#incon-degr-cmd "halt -f";
[code]....
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Jun 23, 2009
i have problems with my failover machines and cant locate the cause. The last update is quite some time ago.So will it hurt my configuration when I do an yum-update? I have 5 Xen VM on each machine, also they replicate with drbd and heartbeat. Can I just update the dom0 and leave the VM untouched inside?
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Jul 23, 2010
I'm trying to configure an ISCSI/DRBD high-availability cluster and I'd like to know what is the best option between OpenAIS and Heartbeat. I've seen they both are included in Centos Repos, yet OpenAIS requires installing 2 addition repos to install Pacemaker (EPEL and Clusterlab repos).
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Apr 22, 2009
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Jul 29, 2009
I was working to integrate Centos 5 and AD 2003 R2, this is my set up Windows side:
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2. Configure the Unix attributes for every user account that will be authenticating from centos.
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[Code]...
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Nov 4, 2010
I've installed CentOS 5.x (64 bit) on a Hyper-V Server R2. When I trying to install integration serices I get an error:
[root@localhost ~]# cd /opt/linux_ic_v21_rtm/
[root@localhost linux_ic_v21_rtm]# make
Building all modules...
make -C /lib/modules/2.6.18-164.el5/build SUBDIRS=/opt/linux_ic_v21_rtm/src modules
make: *** /lib/modules/2.6.18-164.el5/build: No such file or directory. Stop.
make: *** [all] Error 2
I am using:
Linux localhost.localdomain 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
I did everything as it shows on [URL].
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May 19, 2011
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Oct 15, 2010
It seems to be drbd is not available in ubuntu 10.10 at all. I just installed the drbd8-utils package thinking the kernel module would already be built-in. But I guess not, because here is the error I get:
Code:
# drbdadm syncer r0
Could not stat("/proc/drbd"): No such file or directory
do you need to load the module?
try: modprobe drbd
Command 'drbdsetup 1 syncer --set-defaults --create-device' terminated with exit code 20
drbdadm syncer r0: exited with code 20
[Code]...
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Dec 6, 2010
I'm gonna set up a HA-cluster with the help of DRBD. I have installed DRBD and it's working on the Primary node, I synced them and formated it to ext3 and mounted it successfully on the Primary.
When I'm gonna mount it on the Secondary node it just tells me that I need to specify a filesystem.. so it looks like is hasn't been synced properly or something but both nodes are up to date.
This is my drbd.conf:
Code:
global {
usage-count no;
}
resource dbcluster {
[Code].....
and could mount it without any problems on dbcluster1, but it doesn't work on dbcluster2.. according to the documentation and various howtos I'm suppose to be able to use it, mount it on both nodes etc. unless I've missed something.
Does anyone know if there is something else I need to do to get it running properly on the Secondary?
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Apr 21, 2010
i tried installing the drbd for replication of data.. i found some tutorials but when i tried installing it i spits out an error of
Code:
E: Package drbd8-module-source has no installation candidate this is what i use to install it
Code:
apt-get install drbd8-utils drbd8-module-source drbd8-source build-essential
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May 21, 2011
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Apr 28, 2010
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[Code]...
I'm not very experienced in compiling from source i'd love to make an rpm for this but after scouring the web and trying different install methods, I am still at a loss.
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Jan 28, 2010
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Code:
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[Code]...
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[code]....
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