Ok, here goes :-) I'll see if I can get it right. A little tired last evening.
I have two computers, each one with eight two core processors (sixteen cores). On each machine I have installed a copy of Linux with kernel virtual machine (KVM) and drbd. I then configured drbd for active/active so that both machines are primary. End of first stage :-) I now install four Linux virtual machines (vm) on each node (eight on both nodes). I want to access the drbd directory on the host from all four of the virtual machines. I tried setting them up with a virtio disk back to the drbd on the host but that does not work, synchronization fails. Is there a way to connect to these drbd disks and maintain sync? The content changes constantly so it is necessary? Thank you very much, Mark -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Thomas Halinka Sent: Wednesday, January 13, 2010 6:17 PM To: Yeary, Mark A. Cc: General Linux-HA mailing list Subject: Re: [Linux-HA] high-available storage-server through linux-ha Hi Mark, Am Mittwoch, den 13.01.2010, 17:38 -0500 schrieb Yeary, Mark A.: > Hi Thomas, > > I should have been more clear in my explanation. We have a two > physical node drbd cluster with GFS2. We have tried to add two more > nodes by increasing the gfs2 journal to four, the two in the drbd > cluster and two separate nodes; all four with gfs2 formatting. All four > nodes are connected via virtual machine (KVM) virtio disks. So your hosts are vms? > We can > access them but they do not maintain synchronization. .. because they all access _one common_ blockdevice passed through by kvm? Two of them play drbd with this device while the others do not? > Becoming frustrated (only a little :-), we went back to the two > with drbd and gfs2. We then tried to connect with two more nodes (a > total of four) via iscsi. That didn't seem to work either. Why? Just dd if=/dev/zero of=/MOUNTPOINT_GFS/10GB bs=1M count=10000 And add this as a Lun to e.g. IET > Anything > you can tell us would be helpful :-) We should get more clearness about what you need - what is your goal? Do you want to access a Filesystem from all this hosts? Well known NFS with or GFS/OCFS2 on DRBD with iSCSI, AoE or FCoE could be a Solution... Or do you want to Share your _Raw Storage_? iSCSI, AoE, FCoE on LVM on top of DRBD would be nice... > > Truly, > > Mark > cu, thomas _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.432 / Virus Database: 270.14.138/2618 - Release Date: 01/13/10 07:35:00 _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
