Thanks as well... did not know that OCFS2 is in the backport repo. regards, Andre | http://www.varon.ca
On Fri, Dec 10, 2010 at 12:45 PM, Linux Cook <[email protected]> wrote: > hi andre, > > thanks for your input. As I checked, I used 1.4.4 lenny-backports package. > > Thanks! > > Oliver > > > On Thu, Dec 9, 2010 at 8:27 PM, andrelst <[email protected]> wrote: > >> OCFS2+DRBD uses your NIC for transport on these strategy. Better go for >> OCFS2 (NIC Transport) + Multipathing(Fibre Channel transport backend) for >> less traffic on the NIC. >> >> FYI, stock Debian, Ubuntu and SuSE(and yes, even the latest SLES 11 SP1 >> addon HA.) use OCFS2 1.4.3. Watch out for these because you may be hit by >> the "Orphan file" Bug which I painfully found out. Better use minimum 1.4.4 >> or higher which fixes these problems. A chicken and egg situation here. The >> Oracle project website only has RHEL binaries, so you have to do ala going >> back to the Linux compile from scratch 90's.... :) >> >> regards, >> Andre | http://www.varon.ca >> >> On Thu, Dec 9, 2010 at 10:20 PM, Linux Cook <[email protected]> wrote: >> >>> hi jan, >>> >>> I need to mount it on both machines because I'm inserting data from both >>> since I'm working on active-active web cluster. Yeah I realized that since >>> it cannot be mounted on both machines, I used active-active drbd setup >>> instead and mount it using pacemaker. >>> So its OCFS2 + DRBD thingy which worked for me. >>> >>> Thanks for all your inputs guys! >>> I really appreciate it. >>> >>> Oliver >>> >>> >>> On Thu, Dec 9, 2010 at 10:37 PM, jan gestre <[email protected]>wrote: >>> >>>> >>>> >>>> On Wed, Dec 8, 2010 at 3:09 PM, Linux Cook <[email protected]> wrote: >>>> >>>>> hi guys, >>>>> >>>>> I bumped into a problem after settingup OCFS2. I'm trying to mount the >>>>> OCFS2 filesystem into both nodes by adding it into /etc/fstab but only the >>>>> primary node gets the mount. The secondary node didn't mount anything. >>>>> >>>>> Any thoughts? >>>>> >>>>> Oliver >>>>> >>>>> >>>>> On Tue, Dec 7, 2010 at 12:01 PM, Linux Cook <[email protected]>wrote: >>>>> >>>>>> Guys, >>>>>> >>>>>> Thanks for all your inputs and I really really appreciate it. As I >>>>>> mentioned I used OCFS2 with multipathing and that worked for me. >>>>>> >>>>>> Thanks again! >>>>>> >>>>>> Oliver >>>>>> >>>>>> On Tue, Dec 7, 2010 at 11:45 AM, Federico Sevilla III <[email protected]>wrote: >>>>>> >>>>>>> Hi Oliver, >>>>>>> >>>>>>> Assuming you know the risks involved with what you're trying to do, >>>>>>> then >>>>>>> the missing piece is using what is called a shared disk file system. >>>>>>> You >>>>>>> already mentioned OCFS2, another option would be GFS (Global File >>>>>>> System). I'm not sure if btrfs and ZFS are shared disk file systems, >>>>>>> but >>>>>>> it's worth a check. >>>>>>> >>>>>>> The reason "what you are doing is very dangerous" is if you're not >>>>>>> using >>>>>>> a shared disk file system, you basically end up with lost data at >>>>>>> best, >>>>>>> but more probably a corrupt and useless file system at the end. >>>>>>> "Normal" >>>>>>> file systems are used to having exclusive write access to their block >>>>>>> device. >>>>>>> >>>>>>> Good luck, and have fun. >>>>>>> >>>>>>> Cheers! >>>>>>> >>>>>>> -- >>>>>>> Federico Sevilla III, CISSP, CSM, LPIC-2 >>>>>>> Chief Executive Officer >>>>>>> F S 3 Consulting Inc. >>>>>>> http://www.fs3.ph >>>>>>> >>>>>>> >>>>>>> On Tue, 2010-12-07 at 11:21 +0800, Linux Cook wrote: >>>>>>> > okay some guys told me i should be using ocfs2? would this really >>>>>>> > help? >>>>>>> > >>>>>>> > On Tue, Dec 7, 2010 at 9:50 AM, Jimmy Lim <[email protected]> >>>>>>> wrote: >>>>>>> > Hi Oliver, >>>>>>> > >>>>>>> > >>>>>>> > What you are doing is very dangerous! You can present the >>>>>>> > LUNs on the 2 servers, but only *one* can only write to it. >>>>>>> > >>>>>>> > >>>>>>> > If you want to achieve redundancy on your server, I believe >>>>>>> it >>>>>>> > is better to get the HP Service Guard (but this is not a >>>>>>> free >>>>>>> > software). >>>>>>> > >>>>>>> > >>>>>>> > http://docs.hp.com/en/ha.html >>>>>>> > >>>>>>> > >>>>>>> > HTH >>>>>>> > >>>>>>> > >>>>>>> > Jimmy >>>>>>> > >>>>>>> > >>>>>>> > On Tue, Dec 7, 2010 at 1:34 AM, Linux Cook >>>>>>> > <[email protected]> wrote: >>>>>>> > >>>>>>> > >>>>>>> > Hi pluggers, >>>>>>> > >>>>>>> > I've just configured multipathing on my debian >>>>>>> boxes >>>>>>> > (Server A and Server B) using HP StorageWorks with >>>>>>> > Dual FCs on each server and can now mount the path >>>>>>> > alias I defined on my multipath configuration. But >>>>>>> > everytime I write a data on Server A, the data are >>>>>>> not >>>>>>> > reflecting on Server B. >>>>>>> > >>>>>>> > Any help? >>>>>>> > >>>>>>> > Oliver >>>>>>> >>>>>>> >>>>>>> _________________________________________________ >>>>>>> >>>>>> >>>> Hi Oliver, >>>> >>>> I'm confused, would you care to enlighten? Why are you trying to >>>> accomplish in the first place? I'm assuming you're setting up an HA cluster >>>> hence the need for shared disk and multipath ...., correct? If this is what >>>> you're trying to achieve then you're doing it all wrong, the partition >>>> should only be mounted on one server e.g. Server A, it will only be mounted >>>> on Server B if something happens to Server A e.g. hardware failure. The >>>> shared drive should not be mounted on both machines at the same time or all >>>> hell will break loose. >>>> >>>> Mounting will be done by your cluster manager e.g. Heartbeat or Redhat >>>> cluster manager. >>>> >>>> BTW, you should be fine with either OCFS2 or GFS2 as filesystem. >>>> >>>> HTH. >>>> >>>> Jan >>>> >>> >>> >>> _________________________________________________ >>> Philippine Linux Users' Group (PLUG) Mailing List >>> http://lists.linux.org.ph/mailman/listinfo/plug >>> Searchable Archives: http://archives.free.net.ph >>> >> >> >
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