similar to: NPIV & SAN Controller Failover

I''m using Xen with SLES10 and am using NPIV to attach FC SAN disks to my domUs. I''ve resize one of the disks on my SAN and I''m wondering if there''s a way to force Xen to rescan/resize the block device without shutting down the domU or unmounting the volume. Thanks, Nick -------- This e-mail may contain confidential and privileged material for the sole use

Link: http://wiki.libvirt.org/page/NPIV_in_libvirt Topic: Virtual machine configuration change to use vHBA LUN There is a NPIV storage pool defined on two hosts and pool contains a total of 8 volumes, allocated from a storage device. Source: # virsh vol-list poolvhba0 Name Path ------------------------------------------------------------------------------ unit:0:0:0

Hopefully someone can help get multipath working inside a domU. I'm using Xen 4.2.3 on a SLES 11 dom0, and both a SLES11 domU and a CentOS 6 domU. I'm using NPIV to connect my SAN disks to my domU, and, due to the way my SAN presents the LUNs, need to use multipath inside the domU. I've tried this on both SLES11 and CentOS6 with pretty much the same result. The root issue seems to

Hello, I am trying to find out a best practice for a specific scenario. First of all I would like to know what is the proper way to set up multipath, who should care about it the host or the guest. Right now I have a setup where I have one multipath which sets my host to boot from FC SAN. I have another multipathed LUN in the host which is essentially a dm which I attached to a guest, however

Can anyone point me to a source for the correct syntax to add an npiv disk to a domu? I thought it was disk=[ ''block-npiv:/wwn,xvda,w'' ], I tried just npiv:/ and that didn''t work at all. Thanks -- Rob Aronson Storage, Virtualization and Orchestration Practice Manager, Novacoast USA _______________________________________________ Xen-users mailing list

Is this possible: I would like to have a VM use a FC LUN exported to a virtual wwn (using NPIV) as its primary disk. I was thinking there might be a mechanism to say VM, boot using a LUN with this vwwn as your primary disk? Thanks in advance. -- --------------------------------------------------------------------- Eric Ross HPC Systems Administrator Argonne National Laboratory Leadership

Hi, i''m having problems attaching disks from a fc-san to a solaris 10 guest. xen host ist a opensolaris box "SunOS node1 5.11 snv_127 i86pc i386 i86xpv". my xen guest is named pg4. this command works fine. virsh attach-disk pg4 /dev/dsk/c8t600A0B800029D69A000013CA4B00E1ABd0 hdb and before i was able to import this volume as a zpool on the xen host - so connection to this

Hello all, I''m doing some testing with Xen and NPIV disk on the platform SLES 10 SP2 and SLES 11 (xen 3.3). On SLES 10 sp2, I have not encountered major problems during the tests (exept with live migration). I was able to attach a disk with the command "xm block-attach npiv:..." an I am also able to start a VM using a bootable NPIV disk. On sles11, after changing the script

On 02/08/2016 06:01 PM, Vaknin, Rami wrote: > Thank you for your reply, > I'm still getting hard time to attach the hostdev, I couldn't make it work out of the doc. > > I took the address details from: > > # ll /sys/bus/scsi/devices/7:* > lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:0:0 ->

Thanks for John Ferlan's lots of internal feedbacks, I believe it's more readable, and better orgnized now. Should we create a page for it under http://libvirt.org/deployment.html or add it in WIKI? ========================================== NPIV in libvirt NPIV (N_Port ID Virtualization) is a Fibre Channel technology to share a single physical Fibre Channel HBA with multiple virtual

I'm missing something. The purpose of NPIV (as I understand it) is to give a guest OS an HBA that it can scan, play with new luns, etc all without making changes to the physical server(s) the guest is living in currently. However, I can't find a way to either have the guest's XML config create the HBA or for the physical server to successfully GIVE the HBA to the guest. I can give

On 01.02.2016 22:48, Vaknin, Rami wrote: > Hi, > > I'm trying to attach a host FC HBA to VM (NPIV). > > Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA using nodedev-create command - see below HBA and vHBA. > I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but the vm start starts without the vHBA device.

Before posting it to WIKI or somewhere, I want to see if there is any suggestions on it, or if I missed something. ============================================ How to use NPIV in libvirt I planned to wrote a document about how to use NPIV in libvirt after more features are supported, but it looks like I can't wait till then, got lots lots of questions from both the

Hi. I'm testing a centos 5.4 xen PV guest on top of a centos 5.4 host. for some reason, the disk performance from the guest is awful. when I do an import , the io is fine for a while then climbs to 100% and stays there most of the time. at first I tougth it was because I was using file-backed disks, so deleted those and changed to LVM, but the situation did't improve. Here's an

Hi, I'm trying to attach a host FC HBA to VM (NPIV). Running ovirt 3.5 on CentOS 6.7, libvirt-0.10.2-46.el6_6.6.x86_64, I created vHBA using nodedev-create command - see below HBA and vHBA. I wrote a vdsm hook which appends the vHBA xml stanza to the devices xml element but the vm start starts without the vHBA device. Also, when trying to attach the device manually as a live device - I get:

Thank you for your reply, I'm still getting hard time to attach the hostdev, I couldn't make it work out of the doc. I took the address details from: # ll /sys/bus/scsi/devices/7:* lrwxrwxrwx 1 root root 0 Feb 8 12:58 /sys/bus/scsi/devices/7:0:0:0 -> ../../../devices/pci0000:00/0000:00:03.0/0000:08:00.1/host7/rport-7:0-0/target7:0:0/7:0:0:0 lrwxrwxrwx 1 root root 0 Feb 8 12:58

I have a machine with opensolaris snv111b .I want to let it use to a fc-san initiator NAS header in my total system. Now I configure FC HBA port from qlt to qlc mode as initiator wich command update_drv . I can use stmfadm list-target -v to find the FC-SAN target is conneted Target: wwn.2100001B328A3224 Operational Status: Online Provider Name : qlt Alias : qlt2,0

Kathy, Thank you very much! Peter Olson Alcatel-Lucent Member of Technical Staff Services Technologies 1960 Lucent Lane Rm 7G334 Naperville, IL 60566 peterolson@alcatel-lucent.com Phone: 630 979 0573 Mobile: 630 430 6926 -----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of xen-users-request@lists.xensource.com Sent:

Yesterday, I had a PV OpenSolaris DomU stop responding. I looked on my xen machine and it was in a paused state. I ended up destroying it and then doing xm create to bring it back up. It won''t boot, and I think PyGrub is hanging. Not sure how to resolve this, there aren''t any errors being presented in xen/xm itself. If I try ''xm create config.conf'' it just

Seems like different libvirt versions generate a storage volume name in different format. We would like to learn how libvirt names a storage volume under a block based storage pool. So that we may properly extract the LUN identifier out of the volume name for now and in the future. On host A loaded with libvirt 0.8.7 # virsh vol-list SanPool1 Name Path -----------------------------------------