similar to: BLKTAP

I tried to create a domain with drbd based disk as the backend "drbd:<resourcename>,..," and I get a "unknown disk type" error. I can spin out a patch if needed, but just wanted to know apriori if this was left out for any specific reason. shriram _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hi All, I want to test REMUS over XEN, I would like to know the basic steps to be followed . I have installed xen4.1 on debian and i didn''t find any command related to remus, is there any steps which i have to carry out? _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

This patch series adds support for network buffering in the Remus codebase in libxl. Changes in V3: [1/5] Fix redundant checks in configure scripts (based on Ian Campbell''s suggestions) [2/5] Introduce locking in the script, during IFB setup. Add xenstore paths used by netbuf scripts to xenstore-paths.markdown [3/5] Hotplug scripts setup/teardown invocations are now

Hi, I''m doing my master research and I need to adapt remus code. Now... I wanna get the checkpoint size (memory + disk) on each period. Does someone know what function does this? I think some *fd *object''s function in remus code could just get the memory size. Does someone help me? Thanks _______________________________________________ Xen-devel mailing list

Hi, The following patch series fixes hangup after creating checkpoint on Xen. The Linux Xen guest can be saved the state to restore later, and also created snapshot like checkpoint via the hypervisor. But, when the snapshot is created for the PV guest, it will hangup. We added ''PMSG_CANCEL'' message and ''cancel'' handler in dev_pm_ops struct in the pm-linux

Hi Sriram, Once again, thanks for your timely reply.... I tested as your suggesstion and i found that i don''t have any file in the location "/var/lib/xen" [root@globushead xen]# pwd /var/lib/xen [root@globushead xen]# ls -ll total 0 Further i tested the command "xm save " and results as follows Terminal 1: xm save -c TestVM1 TestVM1.chkpt

Dear all, I have sent this problem earlier but maybe its not detail, here I try to write more detail. I hope anybody can help me to point out the problem. First of all I used Ubuntu 12.04 x64 both for domain0 and domainU with modification to run under xen hypervisor and work with remus. I follow and configured the remus with this notes

Hi, I am trying to understand and change the network buffering that is being used by Remus, the HA solution present in Xen. From what i understood from reading the code, Remus calls the postsuspend method of the BufferedNIC after it suspends the domain that sends TC_PLUG_CHECKPOINT message and start the buffering and then calls the commit method of BufferedNIC after it gets the acknowledgement

What are the outstanding things to do before we think we can start on the 4.2 -rc''s? Does anyone have a timetable in mind? hypervisor: * ??? - Keir, Tim, Jan? tools: * libxl stable API -- we would like 4.2 to define a stable API which downstream''s can start to rely on not changing. Aspects of this are: * event handling (IanJ working

Dear List, i''m experimenting with remus with the following setup. dom0: - Debian Squeeze - Jeremy''s 2.6.38.48 kernel - xen 4.1.2 recompiled from sid - DRBD for block device backend domU - Debian Squeeze Remus is working fine unless i try to give more than 1 core to the domU. Here''s the error from remus when i''m trying to enable it for an SMP domU:

Hello, I have been playing around with Remus on Xen 4.0.1, attempting to fail-over for an HVM domU. I''ve run into some problems that I think could be related to tapdisk2 and its interaction with how one sets up Remus disk replication in the domU config file. A few things I''ve noticed: -The tap:remus:backupHostIP:port|aio:imagePath notation does not work for me, although this

I noted a possible problem restoring a machine. In xc_domain_restore (xc_domain_restore.c) if it''s not the last checkpoint we set O_NONBLOCK flag (search for fcntl) that we can call pagebuf_get or just load other pages (see following "goto loadpages;" line). Now we could ending up calling xc_tmem_restore/xc_tmem_restore_extra (xc_tmem.c) which call read_extract (xc_private.c)

Hardware: Dell Poweredge R510 (32G ram, 8 CPU- Xeon) 64bit - xen 4.0.1 stable 64bit - 2.6.32.18 dom0 (.config attached) running Ubuntu 10.04 32 bit - 2.6.18.8 domU (.config attached) running ubuntu 8.04 domU has 3 tap2 disks, on lvm snapshots. domU has 2G mem, 2 VCPU workload on domU - ssh + top running, destroy domain -- This works . But, If i run a heavier workload say postgres db (just

Hi Ian,  Can you please backport the following Remus related patches: http://xenbits.xen.org/hg/xen-unstable.hg/rev/13ec53a59a42 http://xenbits.xen.org/hg/xen-unstable.hg/rev/29d81623dc14 http://xenbits.xen.org/hg/xen-unstable.hg/rev/b04e57ec4671 http://xenbits.xen.org/hg/xen-unstable.hg/rev/62c0dfc9efbf http://xenbits.xen.org/hg/xen-unstable.hg/rev/ecff559bf474

hi guys, It''s my first time here and in a mailing lists, I only participated in forums before. Please, If I make a mistake you should advise me. Let''s go! I was reading "xencommons not start" in a Remus Forum in order to install Remus. Well… I followed the tutorial < http://remusha.wikidot.com/configuring-and-installing-remus>, I reboot in xen_unstable and I had

hi guys, It''s my first time here and in a mailing lists, I only participated in forums before. Please, If I make a mistake you should advise me. Let''s go! I was reading "xencommons not start" in a Remus Forum in order to install Remus. Well… I followed the tutorial < http://remusha.wikidot.com/configuring-and-installing-remus>, I reboot in xen_unstable and I had

Hi all, I have upgraded a test machine from OpenSuSE 11.1 to 11.2. I have found following bug: the server is a 2x quadcore intel box also 2x4=8cpu If you limit the dom0 cpu with dom0-cpus= [1-7]: - [xenwatch_cb] is running 100% cpu and makes var log entry every 65 sec BUG: soft lockup - CPU#X stuck for 61s! - xm commands not work - xend is dead if set dom0-cpus to 0 or 8: - everything looks

I have a IBM System x3600 series server with UEFI. I managed to compile the xen EFI (xen-4.2-unstable.efi). The machine is currently running Ubuntu with grub2. I can see a grubx64.efi in /boot/efi/EFI/ubuntu/grubx64.efi Where should I put the xen efi ? I tried creating a efi/EFI/xen/xen-4.2-unstable.efi and added it as a boot option using efibootmgr. All I get in that case is a blank screen. I

Dear all, Again, I have some question here and I hope some one have experience how to do it. I have Xen 4.2.1 installed from sources and working with XM toolstack. I will use this xen in order to run Remus high availability with DRBD. Does any one know about openvswitch integration with xm toolstack, since Xen wiki only confirm XCP have natively support openvswitch

Use PM_FREEZE, PM_THAW and PM_RESTORE power events for suspend/resume/checkpoint functionality, instead of PM_SUSPEND and PM_RESUME. Use of these pm events fixes the Xen Guest hangup when taking checkpoints. When a suspend event is cancelled (while taking checkpoints once/continuously), we use PM_THAW instead of PM_RESUME. PM_RESTORE is used when suspend is not cancelled. See