search for: mpath

The following patches introduce support for multipath and cciss devices to the ovirt-node and node-image. Comments are appreciated. These patches assume that the 3 patches (2 node, 1 node-image) from Joey are all incorporated. Mike

...h between cipcb0/cipcb1 with a granularity of changing every 2 seconds or so. weird. All outgoing traffic from A still went through the same cipcb interface. What i have searched for but failed to find =========================== I have found posts that refer to something like ip route add ... mpath rr but can not find which iproute2 package that contains the mpath arguments. Request for help: ================= I currently use 2.6.13 with the config options i listed above. How can I do packet by packet load balancing from packets from A to B? I am willing to change to whatever 2.6 kernel...

...ell R420 with 2 LSI SAS2008 HBAs, 4 internal disks, and a MD3200 storage array attached via SAS cables. Oh and CentOS 6 lsblk shows the following: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdd 8:48 0 931.5G 0 disk ??sdd1 8:49 0 931.5G 0 part ??mpathi (dm-0) 253:0 0 931.5G 0 mpath sdc 8:32 0 931.5G 0 disk ??sdc1 8:33 0 1000M 0 part /boot ??sdc2 8:34 0 31.3G 0 part / ??sdc3 8:35 0 31.3G 0 part [SWAP] ??sdc4 8:36 0 1K 0 part ??sdc5...

All other patches from the sequence remain unchanged. Repost of patch 6 based on comments from Joey to follow. Mike

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 port 1: /dev/sda LUN 0 on port 2: /dev/sdb and th...

...obbuf.gl_pathc;i++) { + + /* remember pattern's trailing '/' (HP/UX glob(3) leaves it off matches) */ + if (*(argv[*argc] + strlen(argv[*argc]) - 1) == '/') + trailing_slash = 1; + + for (i = 0; i < (maxargs - (*argc)) && i < (int)globbuf.gl_pathc; i++) { + char *mpath; if (i == 0) free(argv[*argc]); - argv[(*argc) + i] = strdup(globbuf.gl_pathv[i]); - if (!argv[(*argc) + i]) out_of_memory("glob_expand"); + mpath = globbuf.gl_pathv[i]; + /* pattern had a trailing '/' and this matching path does not */ + if (trailing_slash && *mpa...

Anyone using it? I''ve tried but after about 5 min I always get kernel panic. My setup is based on nano.txt. I works well but only if CONFIG_IP_ROUTE_MULTIPATH_CACHED=n. I just wanted to play with the new mpath feature of ip. But enabling CONFIG_IP_ROUTE_MULTIPATH_CACHED always resuts in kernel panic. I''m not using any kernel patches from http://www.ssi.bg/~ja/ - are they needed at all? - They do not apply cean. The kernel is 2.6.13. This configuration does not work: CONFIG_IP_ROUTE_MULTIPATH=y C...

I'm seeing some strange behavior from OCFS2 while trying to mount mpath/dm-multipath devices under RHEL5. Sometimes I can mount the EMC-connected, dual-pathed volumes just fine and sometimes I get "device busy" errors. I've tried mounting by label and also by explicit /dev/mapper/mpathXpY name with the same unpredictable behavior. I've also noticed th...

Hi, I'm using libvirt 0.8.3 on Fedora 14 (as I wrote earlier, I'm having some trouble updating to the newest version), and I'm having problems getting iscsi and mpath storage pools to work in a usable and consistent manner. I have two storage pools defined on the host machine, one for raw iscsi- devices and one for those same iscsi devices device-mapped by multipath. They look like this: <pool type='iscsi'> <name>iscsi01</name> &...

I have several CentOS 6 boxes that mount iscsi based luns and use mpath. They all had problems shutting down as a result of unused maps not getting flushed as the system halted. After examining the init scripts, netfs, iscsi and multipathd all had the correct order but mpath failed to flush these maps and the system waited indefinitely. In the meantime I hacked this...

Hi all :) there is somekind of strange Routing problem that im getting with Linux-2.6.16 and iproute 2.6.16 , when i use command like : ip route add default nexthop via 1.1.1.1 dev eth0 nexthop via 1.1.1.2 dev eth1 all packets goes on 1.1.1.2 ( always last interface ) , whats is the problem ? this situation also tested with equalize flag , on two physical interface and etc ... -- Lady Luck

...86_64 on IBM x3650 M3 when i run "linux xfs" at boot prompt. Please suggest/guide. Regards Kaushal 20:14:50 INFO : moving (1) to step confirminstall 20:14:55 INFO : moving (1) to step install 20:14:55 INFO : moving (1) to step enablefilesystems 20:14:55 DEBUG : starting mpaths 20:14:55 DEBUG : self.driveList(): ['sda', 'sdb'] 20:14:55 DEBUG : DiskSet.skippedDisks: ['sdb'] 20:14:55 DEBUG : DiskSet.skippedDisks: ['sdb'] 20:14:55 DEBUG : done starting mpaths. Drivelist: ['sda', 'sdb'] 20:14:57 INFO : disk....

...ad live]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 1.8T 0 disk ??sda1 8:1 0 1.8T 0 part ??WDC_WD20EFRX-68AX9N0_WD-WMC1T2547260 253:3 0 1.8T 0 mpath ??WDC_WD20EFRX-68AX9N0_WD-WMC1T2547260p1 253:8 0 1.8T 0 part sdb 8:16 0 1.8T 0 disk ??sdb1 8:17 0 1.8T 0 part ??WDC_WD20EFRX-68AX9N0_WD-WMC301255087 253:4 0 1.8T 0 mpath ??WDC_WD20EFRX-68AX9...

i have quake v1.06 installed and running fine under windows. however, running it in wine gives a bunch of errors. see below: prophet% wine --winver win98 -- QLAUNCH.EXE QUAKEUDP.DLL QUAKE.EXE -mpath fixme:win32:DEVICE_Open Unknown VxD MGenVxD.VXD. Try --winver nt40 or win31 ! prophet% wine --winver nt40 -- QLAUNCH.EXE QUAKEUDP.DLL QUAKE.EXE -mpath fixme:win32:DEVICE_Open Unknown VxD MGenVxD.VXD. Try --winver nt40 or win31 ! prophet% wine --winver win31 -- QLAUNCH.EXE QUAKEUDP.DLL QUAKE.EXE -...

...tion is not valid: unpriv_sgio is not supported by this kernel > > > > Question that shows up here is the multipath question. Since this is fibre channel it is of coarse multipath. The "target dev" says 'sda'. In a multipath dev list it should say "/dev/mapper/mpatha". > > How to handle that? > Uhh... multipath... Not my strong suit... I'm taking an example from a bz that you won't be able to read because it's marked private. Once you have your vHBA and scsi_hostM for that vHBA on the host you can use 'lsscsi' (you may hav...

...ng pool is on running VMs. Does taking the pool off-line cause any issues with running VMs or is the only affect that the pool is unavailable for management by libvirt? These are the commands that I ran to create my pool and expand it after a kickstart of the server: pvcreate -ff -y /dev/mapper/mpath? virsh pool-define-as --name GuestVols --type logical --source-dev /dev/mapper/mpatha --target /dev/GuestVols virsh pool-build GuestVols virsh pool-start GuestVols virsh pool-autostart GuestVols virsh pool-destroy --pool GuestVols vgextend GuestVols /dev/mapper/mpath{b..d} vgdisplay GuestVols virs...

Are folks in the Centos community succesfully using device-mapper-multipath? I am looking to deploy it for error handling on our iSCSI setup but there seems to be little traffic about this package on the Centos forums, as far as I can tell, and there seems to be a number of small issues based on my reading the dm-multipath developer lists and related resources. -geoff Geoff Galitz Blankenheim

3.8.0+ #3 This happened after ''umount /btrfs'' was interrupted by ctl-C # mount | egrep btrfs /dev/mapper/mpathe on /btrfs type btrfs (rw,degraded) # cat /etc/mtab | egrep btrfs /dev/mapper/mpathe /btrfs btrfs rw,degraded 0 0 # cat /proc/mounts | egrep btrfs # umount /btrfs umount: /btrfs: not mounted # -Anand -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body...

...tion is not valid: unpriv_sgio is not supported by this kernel > > > > Question that shows up here is the multipath question. Since this is fibre channel it is of coarse multipath. The "target dev" says 'sda'. In a multipath dev list it should say "/dev/mapper/mpatha". > > How to handle that? > Uhh... multipath... Not my strong suit... I'm taking an example from a bz that you won't be able to read because it's marked private. Once you have your vHBA and scsi_hostM for that vHBA on the host you can use 'lsscsi' (you may hav...

...tion is not valid: unpriv_sgio is not supported by this kernel > > > > Question that shows up here is the multipath question. Since this is fibre channel it is of coarse multipath. The "target dev" says 'sda'. In a multipath dev list it should say "/dev/mapper/mpatha". > > How to handle that? > Uhh... multipath... Not my strong suit... I'm taking an example from a bz that you won't be able to read because it's marked private. Once you have your vHBA and scsi_hostM for that vHBA on the host you can use 'lsscsi' (you may hav...