Hello, I hope to be in the right list. my question is the following. I can''t seem to get multipathing configure on XCP 1.6. In XenCenter I was able to enable "Multipath" however, in the LUN under general tab I see " multipath 1 of 1 active", the the CLI I do the following command xe --m node session it list only one session. Can someone help me please? Thanks in advance. -Motty _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
On Tue, 09/17/2013 11:06 PM, motty cruz <motty.cruz@gmail.com> wrote:> Hello, I hope to be in the right list. my question is the following. I > can''t seem to get multipathing configure on XCP 1.6. In XenCenter I was > able to enable "Multipath" however, in the LUN under general tab I see " > multipath 1 of 1 active", the the CLI I do the following command xe --m > node session it list only one session. > > Can someone help me please? > > Thanks in advance. > -MottyHi there. I think they want to move xenserver/xcp discussions over the xenserver.org mailling list, but please tell me what kind of SR are you creating? Is it lvmohba or lvmoiscsi? Also, what kind of device is it? NetApp?SCST?Dell? Etc? Depending upon the device, you may need to edit the multipath.conf file to control how it works.
First Thank you for your reply, I will take note of xenserver mailling list. SR is lvmoiscsi, # cat /sys/block/sda/device/vendor ServeRA # cat /sys/block/sda/device/model hanet The device is Hitachi I am running XCP 1.6 Thanks again! -Motty On Wed, Sep 18, 2013 at 10:01 AM, Errol Neal <eneal@businessgrade.com>wrote:> On Tue, 09/17/2013 11:06 PM, motty cruz <motty.cruz@gmail.com> wrote: > > Hello, I hope to be in the right list. my question is the following. I > > can''t seem to get multipathing configure on XCP 1.6. In XenCenter I was > > able to enable "Multipath" however, in the LUN under general tab I see " > > multipath 1 of 1 active", the the CLI I do the following command xe --m > > node session it list only one session. > > > > Can someone help me please? > > > > Thanks in advance. > > -Motty > > Hi there. I think they want to move xenserver/xcp discussions over the > xenserver.org mailling list, but please tell me what kind of SR are you > creating? > Is it lvmohba or lvmoiscsi? > Also, what kind of device is it? NetApp?SCST?Dell? Etc? Depending upon the > device, you may need to edit the multipath.conf file to control how it > works. >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
On Wed, 09/18/2013 01:19 PM, motty cruz <motty.cruz@gmail.com> wrote:> First Thank you for your reply, I will take note of xenserver mailling > list. > > SR is lvmoiscsi, > > # cat /sys/block/sda/device/vendor > ServeRA > # cat /sys/block/sda/device/model > hanet > > The device is Hitachi > > I am running XCP 1.6 > > Thanks again! > -Motty >You should add an entry in multipath.conf for your device. Here is an example of what I use for my SCST HA configuration device { vendor "SCST_[FB]IO" product ".*" #prio_callout "/sbin/mpath_prio_alua /dev/%n" #path_grouping_policy group_by_prio path_grouping_policy multibus failback immediate getuid_callout "/sbin/scsi_id -g -u -s /block/%n" rr_min_io 100 no_path_retry queue #path_checker scsi_dh_alua path_checker tur #features "0" features "1 queue_if_no_path" #hardware_handler "1 alua" hardware_handler "0" } Once that''s done, reboot or force dm_mulitpath and multipathd to reload. After that, I add the SR in XenCenter using a single path, then in the CLI, I unplug the pbd and recreate it using both iSCSI portals. Here is the command I use: xe pbd-create sr-uuid=2eb2b66b-9353-00e4-1504-dbf4d7e1fb22 device-config:SCSIid=25a526a5255693468 device-config:port=3260 device-config:multihomelist=10.3.147.194:3260,10.3.147.130:3260 device-config:targetIQN=iqn.2010-03:dcsciscsi-ha.datavol01.zrjrui4h09jekauz device-config:target=10.3.147.130,10.3.147.194 host-uuid=1251fd73-7ae6-429e-bf73-61f05ac58cea I think you can add both portal IPs in XenCenter, but you''ll have to try. Hope that helps..