similar to: Anyone have an idea how to find file i/o throughput?

We upgraded our production database cluster (6 node) from EL4 Update 5 to EL5 Update 5, including upgrading OCFS2 from 1.2.9 to 1.4.4. We are now noticing slowdown of batch jobs in Oracle, while hotbackup runs faster. One thing we saw is that journal mode changed from write-back to ordered, as we don't specify journal mode during mount. Oracle sees this as slowdown based on higher IO latency,

We just installed a new cluster with 6 HP DL380g5, dual single port Qlogic 24xx HBAs connected via two HP 4/16 Storageworks switches to a 3Par S400. We are using the 3Par recommended config for the Qlogic driver and device-mapper-multipath giving us 4 paths to the SAN. We do see some SCSI errors where DM-MP is failing a path after get a 0x2000 error from the SAN controller, but the path gets puts

Hello everyone, once again. We are running into a problem, which has shown now 2 times, possible 3 (once the systems looked different.) The environment is 6 HP DL360/380 g5 servers with eth0 being the public interface, eth1 and bond0 (eth2 and eth3) used for clusterware and bond0 also used for OCFS2. The bond0 interface is in active/passive mode. There are no network errors counters showing and

We are setting up 2 new EL5 U4 machines to replace our current database servers running our demo environment. We use 3Par SANs and their snap clone options. The current production system we snap clone from is EL4 U5 with ocfs2 1.2.9, the new servers have ocfs2 1.4.3 installed. Part of the refresh process is to run fsck.ocfs2 on the volume to recover, but right now as I am trying to run it on our

I am working currently on cloning on a regular basis our production OCFS2 volumes to our test environment. For the database (Oracle 10G R2 RAC) we put it into backup mode, then execute a Snapclone on our 3Par SAN. Then we use RemoteCopy and SnapClone to our development 3Par SAN. To recover the OCFS2 volume I got through the following steps: Stop database umount /export/<volume name> Log

Hello, We just experienced a hang that looks superficially very similar to http://www.mail-archive.com/ocfs2-users at oss.oracle.com/msg02359.html There are 3 nodes in the cluster ocfs2-1.4.1 rhel 5.2. Versions, uname's in the attached text file which also includes fs_locks dumps and various other diagnostics. The lock up happened when we were restarting a java application that was

I looked around, found older post which seems not applicable anymore. I have a cluster of 2 nodes right now, which has 3 OCFS2 file systems. All the file systems were formatted with 4 node slots. I added the two news nodes (by hand, by ocfs2console and o2cb_ctl), so my /etc/ofcfs/cluster.conf looks right: node: ip_port = 7777 ip_address = 192.168.201.1 number = 0

Hi, I'am new to ocfs2 filesystem and I have some questions about it. I installed three server according to the user guide from http://oss.oracle.com/projects/ocfs2/dist/documentation/v1.4/ocfs2-1_4-usersguide.pdf For every single server I have a working ocfs2 partition /dev/sdb1 on /mnt/oc1 type ocfs2 (rw,_netdev,heartbeat=local) As I understand the ocfs2 system I can use now these

Hi there, A month ago we ran into the fsck issue while rebooting one of the Oracle RAC nodes running on Linux RHEL 5.2. It was hanging for 1.5 hours During the reboot, OS portion went fine, then it activated the data volumes in all data vg's with [OK] Then displayed message: Checking filesystems - and it took it 1.5 hrs, then it finished the reboot. Last weekend we rebooted the same box and

This may or may not be ext3 related but I am trying to find any pointers which might help me. I got a number of HP Proliant DL380 g5 with a P400 controller and also two qla2400 cards. The OS is RedHat EL4 U5 x86_64. Every time during reboot these systems panic after the last umount and I believe before the cciss driver is getting unloaded. The last messages I am able to see are: md: stopping

I am trying to make a mysql standby setup with 2 machines, one primary and one hot standby, which both share disk for the data directory. I used tunefs.ocfs2 to change the number of open slots to 1 since only one machine should be accessing it at a time. This way it is fairly safe to assume one shouldn't clobber the other's data. Only problem is, if one node dies, the mount lock still

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hi there i try to setup OCFS2 with loop device /dev/loop0 i've 4 servers running SLES10 SP2. internal ip's: 192.168.55.1, .2, .3 and .6 my cluster.conf: -------------------------------------------- node: ip_port = 7777 ip_address = 192.168.55.1 number = 0 name = www cluster = cawww node: ip_port = 7777 ip_address = 192.168.55.2

Seems RPM compatibility issue with OS Kernel. Check OS Kernel and download RPM (4 Nos) for same kernel. Regards, Yuvrajsinh Chauhan || Sr. DBA || CRESTEL-PSG Elitecore Technologies Pvt. Ltd. 904, Silicon Tower || Off C.G.Road Behind Pariseema Building || Ahmedabad || INDIA [GSM]: +91 9727746022 -----Original Message----- From: ocfs2-users-bounces at oss.oracle.com [mailto:ocfs2-users-bounces

Greetings, Last night I manually unpresented and deleted a LUN (a SAN snapshot) that was presented to one node in a four node RAC environment running OCFS2 v1.4.1-1. The system then rebooted with the following error: Oct 21 16:45:34 ausracdb03 kernel: (27,1):o2hb_write_timeout:166 ERROR: Heartbeat write timeout to device dm-24 after 120000 milliseconds Oct 21 16:45:34 ausracdb03 kernel:

I am running into performance issues with ext3. Historically we had our image files (pictures of cars, currently 5.3 million) sub divided into a directory structure [0-9]/[0-9]/[0-9]/[0-9], where we would take the first 4 letters/numbers of the file name and use that to put it into this structure. Letters [a-cA-C] would become a 0, [d-fD-F] a 1, etc. As the file names used to be based on VIN

Hi, I was trying to install OCFS 2 in my Oracle Linux 5 Machine. I created a mount point for cluster file system: # mkdir /u02 My Kernel version is : # uname -r 2.6.18-308.4.1.0.1.el5xen I am downloading the appropriate version of the kernel module from this location: https://oss.oracle.com/projects/ocfs2/files/RedHat/RHEL5/x86_64/1.4.10-1/2.6.18-308.4.1.el5/ When I am trying to execute

Hi Yuvrajsinh, thank you for the reply, yes it was a kernel issue and we have done an upgrade to 2.6.18.308 and used the packges that match the version number, and I have done a update post this evening as below Hi All, since the post I have made some kind of a progress 1. I upgraded the kernel to 2.6.18-308.1.1.el5 same I was able to download the ocfs2 module is

Hi there I recently installed an OCFS2 filesystem on our FC-SAN. Everything seemed to work fine and I could read & write the filesystem from both servers that are mounting it. After a while though, writes coming from one node do not appear on the other node and vice versa. I am not sure what's causing this, and not very experienced at debugging filesystems. If anybody has any

Dear Sirs and Madams, I run a small visual effects production company, Hammerhead Productions. We'd like to have an easily extensible inexpensive relatively high-performance storage network using open-source components. I was hoping that OCFS2 would be that system. I have a half-dozen 2 TB fileservers I'd like the rest of the network to see as a single 12 TB disk, with the aggregate