similar to: locking and gfs

Hello there! I made Debian, Xen 2.0 and CLUSTER/GFS work together :). I wrote this little tutorial to help you setup yours. Any feedback is welcome, except comments about W3C validation of my code :p Note that I am talking about compiling CLUSTER with your XEN kernel, I don''t explain how to setup a working cluster. You can find how to setup those in official RedHat docs. You will see,

We currently have a MD3000i with an iSCSI LUN shared out to our apache web server. We are going to add another apache web server into the mix using LVS to load balance, however, I am curious how well iSCSI handles file locking and data integrity. I have the iSCSI partition formatted as ext3. Is my setup totally flawed and will ext3 not allow for data integrity with multiple apache hosts

Hi, Can anyone shed light on Linux's Global File System in RHEL 4 please? It looks like Oracle's OCFS. Is there any relationship between them? If they are different things, has anyone done any performance comparison please? Thanks and regards. Han -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I have configured two machines for testing gfs filesystems. They are attached to a iscsi device and centos versions are: CentOS release 5.4 (Final) Linux node1.fib.upc.es 2.6.18-164.el5 #1 SMP Thu Sep 3 03:33:56 EDT 2009 i686 i686 i386 GNU/Linux The problem is if I try to mount a gfs partition it hangs. [root at node2 ~]# cman_tool status Version: 6.2.0 Config Version: 29 Cluster Name:

Hi list, I setup on 2 Xen Dom0s drbd/gfs a logical volume, this works as primary/primary so both DomUs will be able to write on them at the same time. But I dont know how to mount them from my domUs, I can see them with fdisk -l. The partition is /dev/xvdb1 SHould I install gfs on domUs and mount them on each as gfs partitions? [root@p3x0501 ~]# fdisk -l Disk /dev/xvda: 5368 MB, 5368709120

I am considering building a pair of storage servers that will be using CentOS and GFS to share the storage from a Coraid (SATA+Raid) EtherDrive shelf. Has anyone else tried such a setup? Is GFS stable enough to use in a production environment? There is a build of GFS 6.1 at http://rpm.karan.org/el4/csgfs/. Has anyone used this? Is it stable? Will I run into any problems if I use CentOS 3.5

HI, Sorry for repeating same mail ,while composing that mail i mistakenly typed the send button.I am facing problem with my gfs and below is the running setup. My setup Two node Cluster[only to create shared gfs file system] with manual fencing running on centos 4 update 5 for oracle apps. Shared gfs partition are mounted on both the node[active-active] Whenever i type df -h command it

On CentOS 5, the current centosplus kernel doesn't want to play with the kmod-gfs package (because kmod-gfs wants the stock kernel): # yum install kmod-gfs gives me: Transaction Check Error: package kernel-2.6.18-8.1.14.el5.centos.plus (which is newer than kernel-2.6.18-8.1.14.el5) is already installed Should it work, or is there a separate centosplus build that I've not

Hey All, I have a cluster setup and exporting gfs storage everything is working ok(as far as I know anyway). But instead of mounting the gfs storage I want the xen guest to be installed on the shared gfs storage. But with my current setup when I install the domU on the gfs storage it changes it to ext3. Is it possible this way or does the domU have to be on an ext file system?

Are the RPMs for the latest GFS kernel module GFS-kernel-2.6.9-72.2.0.8 to be used with the version 2.6.9-55.0.9.EL available ? I tried to compile the Source RPMs available from the Red Hat site but the modules can't be loaded because of invalid module format arising from version magic issues. The syslog shows: node0 kernel: gfs: version magic '2.6.9-55.0.9.ELsmp SMP 686 REGPARM

Hi all, Since I've got no reply on redhat cluster list, I'm trying here ... I'm testing a rhcs4 cluster with gfs. I noticed some poor performance while tarring data from a gfs volume to a local disk from both nodes at the same time, so I deceided to have a closer look. Here are the bonnie++ results: http://jure.pecar.org/gfs/ I don't know what to think of these ... but I doubt

Hi guys, I'm looking at the possibility of running a pair of servers with Dovecot LDA/imap/pop3 using internal drives with DRBD and GFS (or other clustered FS) for the mail storage and ext3 for the root drive. I'm currently using maildrop for delivery and Dovecot imap/pop3 with the stores over NFS. I'm looking for better performance but still keeping the HA element I have now with

Hello All, We are using Dovecot 1.1.3 to serve IMAP on a pair of clustered Postfix servers which share a fiber array via the GFS clustered filesystem. This all works very well for the most part, with the exception that certain operations are so inefficient on GFS that they generate significant I/O load and hurt performance. We are using the Maildir format on disk. We're also using

This is the 2nd time this has happened to me. There was a kernel release over the weekend to .67.0.15, yet, they did not release the updated GFS to go along with it, so when the machine rebooted, there was no gfs file system in the new running kernel which in turn wreaked havoc on my cluster. I truly wish they would not do that :). I guess I shall have to not allow automatic yum updates from

Hello, I have a storage offering some 11 TB of space. I'd happily use ext3 and NFS export to 4 client machines, but 8 TB seems to be the tested maximum. I'd really like one mount point for the whole 11 TB. Since GFS offers lock_nolock option for local mounting, I'm assuming it's not so out of line to NFS export this GFS mount point. Thoughts and inputs appreciated. --Koji

Hello: I am planning to implement GFS for my university as a summer project. I have 10 servers each with SAN disks attached. I will be reading and writing many files for professor's research projects. Each file can be anywhere from 1k to 120GB (fluid dynamic research images). The 10 servers will be using NIC bonding (1GB/network). So, would GFS be ideal for this? I have been reading a lot

I have 2 machines in a cluster using GFS, that many client mount up via nfs. We use quotas extensively here, is there a way from a client machine to check a users quota? Standard quota command on client machines do not work like they do when checking a non-gfs nfs mounted file system. The quotas do work however, when a user exceeds quota and tries to write a file, it tell them that quota has

Hello I read about the technology and i found all amazing and great challenger, i like to test and install soon---, for this reason i have some question about this. GFS / CS I see the gfs and cs download into http://bender.it.swin.edu.au/centos-3/ and http://mirrors.csol.org/CentOS/3/csgfs/i386/RPMS/ What are the diference in both packages? Anyone has using this technologies? and example of

Hello, I''ve to choose between 2 Shares files system installing on Dom0 to share between 3 DomU in full-Virt mode.... I think i may choose GFS file system ... What is your advice about this choice??? Thanks for your advice. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hello, We have two Fedora 5 Servers clustered with GFS. We installed samba and exported the same shares in both of them. All went fine at first, with people accessing to theirs own files and so, but for some programs (minitab, matlab, ...) people need to access the same file at once. Then samba begins to fail and clients hang. In order to fix samba is necessary to restart the service.