similar to: Device-mapper-multipath not working correctly with GNBD devices

Hello all: I'm having a strange problem with GNBD and LVM on two fully updated CentOS 5.5 x86_64 systems. On node1, I have exported a gnbd volume. lvcreate -L 500M -n mirrortest_lv01 mirrorvg gnbd_serv gnbd_export -d /dev/mirrorvg/mirrortest_lv01 -e node1_lv01 On node2 I have imported the volume: gnbd_import -i node1 Next, on node2 I attempt to create a mirrored LV with the

I've googled for this, but everything I find tends to talk about cluster and doesn't give an example close enough that I can figure this out. I have read the Red Hat Cluster Suite Configuring and Managing a Cluster <http://www.redhat.com/docs/manuals/csgfs/browse/rh-cs-en/> links from http://www.redhat.com/docs/manuals/csgfs/. (I think these are mirred on centos.org, but I

Wondering if anyone can point me in the right direction for automating the whole gnbd process. Thanks in advance i.e gnbd_serv gnbd_export gnbd_import modprobe gnbd _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hey, I am trying to migrate Xen VM from 1 physical m/c to another. I have instll GNBD and done the following. VM1 to be exported: nbd_serv -n service gfs stop gnbd_export -c -d /dev/sda1 -e global_diskVM1 gnbd_export -l Domain 0 of other machine: depmod -a modprobe gfs modprobe gnbd modprobe lock_dlm service gfs start gnbd_import -i <ip adress of VM1> -n cd /dev/gnbd I see the

Hi all, Where i want to arrive: 1) having two storage server replicating partition with DRBD 2) exporting via GNBD from the primary server the drbd with GFS2 3) inporting the GNBD on some nodes and mount it with GFS2 Assuming no logical error are done in the last points logic this is the situation: Server 1: LogVol09, DRDB configured as /dev/drbd0 replicated to Server 2. DRBD seems to work

CentOS Errata and Bugfix Advisory 2007:0953 Upstream details at : https://rhn.redhat.com/errata/RHBA-2007-0953.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 4e3a0ef4b2ed1019df88196f418c86b7 kmod-gnbd-0.1.3-4.2.6.18_8.1.14.el5.i686.rpm 7eb54b0cee9bd23cf4eb3e0b98c10205 kmod-gnbd-PAE-0.1.3-4.2.6.18_8.1.14.el5.i686.rpm

CentOS Errata and Bugfix Advisory 2007:0977 Upstream details at : https://rhn.redhat.com/errata/RHBA-2007-0977.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 3308267c6757d7219f6c6b0df781c78c kmod-gnbd-0.1.3-4.2.6.18_8.1.15.el5.i686.rpm 936ca942c0bcf7e7a20e2a489e8d9d49 kmod-gnbd-PAE-0.1.3-4.2.6.18_8.1.15.el5.i686.rpm

CentOS Errata and Bugfix Advisory 2007:0885 Upstream details at : https://rhn.redhat.com/errata/RHBA-2007-0885.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: c8c9a11857ac481dbcb1a9a1304f1833 kmod-gnbd-0.1.3-4.2.6.18_8.1.10.el5.i686.rpm 926604b20cf494d3e6c0a30d0cd7368b kmod-gnbd-PAE-0.1.3-4.2.6.18_8.1.10.el5.i686.rpm

CentOS Errata and Bugfix Advisory 2007:0953 Upstream details at : https://rhn.redhat.com/errata/RHBA-2007-0953.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 33ba3b44c574c0749ada598ba3ff74d0 kmod-gnbd-0.1.3-4.2.6.18_8.1.14.el5.x86_64.rpm 0c15de12384cc4b4130576fe2a3b3ffc

CentOS Errata and Bugfix Advisory 2007:0977 Upstream details at : https://rhn.redhat.com/errata/RHBA-2007-0977.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: a063f498832ca79bf139ad3e05b3c374 kmod-gnbd-0.1.3-4.2.6.18_8.1.15.el5.x86_64.rpm 9b1d8cdb61fcef11aa72a4dd4b75dc1e

CentOS Errata and Bugfix Advisory 2007:0885 Upstream details at : https://rhn.redhat.com/errata/RHBA-2007-0885.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 0a4e96f62cb787b49ebde18a41f9d4ea kmod-gnbd-0.1.3-4.2.6.18_8.1.10.el5.x86_64.rpm 7f4022b8524043e4e6d2cc8d8d827c55

hi all.. Is it recommended to use GNBD in production cluster? . The main purpose of this cluster would be to provide high availablity of Xen virtual machines. I don''t have a fencing device hence I am giving a thought to use GNBD since it can be used in fencing without any fencing hardware. Also, any pointers to the tutorial on using gnbd with RHCS and xen would be great. Thanks Paras.

Anyone have any experience with GNBD? What kind of performance and security differences are there in running GNBD vs NFS? We're planning an implementation with an external storage array (DAS) and want to use a shared filesystem. We have 10 or so clients that will be connecting to the shared filesystem. We have duplicate systems and arrays and were planning on using keepalived for

Dear list, we have a relatively new Sun Storage 7310, where we connect CentOS 5.5 Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades boot from SAN via qla2xxx, and have no harddisks at all. We want them to use multipathing from the very beginning, so /boot and / are already seen by multipathd. Problem is, that the Sun 7310 has two storage heads which run in

Does anyone have OCFS2 running with the "Red Hat Cluster Suite" on RHEL? I'm trying to create a more or less completely fault tolerant solution with two storage servers syncing storage with dual-primary DRBD and offering it up via multipath to nodes for OCFS2. I was able to successfully multipath a dual-primary DRBD based GFS2 volume in this manner using RHCS and GNBD. But switched

Hi all, I am using heartbeat and drbd on CentOS 5 (see http://www.centos.org/modules/newbb/viewtopic.php?topic_id=7816&forum=41 for details).. DRBD and heartbeat are working, and now I want to put GNBD on top on this. However, I installed the latest CentOS-plus kernel (2.6.18-8.1.8.el5.centos.plus) but there doesn't appear to be a kmod-gndb for this kernel. Looks like the latest

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Up until now, I have been using drbd for file custers with great success. Yes, it is a PITA, and sometimes you can get annoying sincronization issues (mostly on lab situations). Now I have been considering giving gnbd (with cs/gfs) a try. Do any of you ever crossed this path ? Any comparisons or comments ? TIA, - -- Rodrigo Barbosa "Quid

Hi all, We're looking at deploying a small Xen cluster to run some of our smaller applications. I'm curious to get the lists opinions and advice on what's needed. The plan at the moment is to have two or three servers running as the Xen dom0 hosts and two servers running as storage servers. As we're trying to do this on a small scale, there is no means to hook the

Hi list! I have a server with dual port Qlogic iSCSI HBA. I set up the same LUN for both ports, and boot the CentOS installer with "linux mpath". Installer detects multipathing fine, and creates mpath0 device for root disk. Installation goes fine, and the system boots up and works fine after the install from the multipath root device. After install the setup is like this: LUN 0 on

Hi, I am little puzzled. I looked through the mailing list archive and some other sources but doesn't seem like anything anyone encountered. I have two systems with attached HP SAN. I'm using SLES 10.1 with multipath-tools. When trying to mount OCFS2 device I get this: SERVER:/ # mount.ocfs2 /dev/mapper/mpath0 /mnt/temp/ mount.ocfs2: Invalid argument while mounting