search for: ivytech

Displaying 19 results from an estimated 19 matches for "ivytech".

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2007 Dec 11
6
Where does xen chache domUs grub.conf ?
Hi all, I''m a newbie on this list. I''m using xen 3.0.3 on CentOS50. I installed a new flavor of kernel in a domU via a standard RPM, which modified my grub.conf by adding a new entry to boot on the new kernel. When rebooting the domU by pygrub, I didn''t see the new grub entry. I tried to restart xend, with no effect. By googling a little, I understood that kernel
2009 Oct 27
7
LVM+Xen+FreeNAS possible?
Hi All, We''ve limitation of 500 GB per server as per ServerLoft. we are needing to store word/pdf files. We are planning to use following setup. /dev/sda1 - boot - ext2 /dev/sda2 - swap /dev/sda3 - dom0 - ext3 /dev/sda4 - LVM - one LV for each domU, We''re planning 3 DomUs. /dev/sda5 - FreeNAS. Is that possible? Can it be in one of the LVs under 4th partition? Currently, one
2010 Feb 27
17
XEN and clustering?
Hi. I''m using Xen on RHEL cluster, and I have strange problems. I gave raw volumes from storage to Xen virtual machines. With windows, I have a problem that nodes don''t see the volume as same one.... for example: clusternode1# clusvcadm -d vm:winxp clusternode1# dd if=/dev/mapper/winxp of=/node1winxp clusternode2# dd if=/dev/mapper/winxp of=/node2winxp clusternode3# dd
2009 Aug 26
26
Xen and I/O Intensive Loads
Hi, folks, I''m attempting to run an e-mail server on Xen. The e-mail system is Novell GroupWise, and it serves about 250 users. The disk volume for the e-mail is on my SAN, and I''ve attached the FC LUN to my Xen host, then used the "phy:/dev..." method to forward the disk through to the domU. I''m running into an issue with high I/O wait on the box (~250%)
2006 Nov 09
7
xen, iscsi and resilience to short network outages
Hi. Here is the short version: If dom0 experiences a short (< 120 second) network outage the guests whose disks are on iSCSI LUNs get (seemingly) unrecoverable IO errors. Is it possible to make Xen more resiliant to such problems? And now the full version: We''re testing Xen on iSCSI LUNs. The hardware/software configuration is: * Dom0 and guest OS: SLES10 x86_64 * iSCSI LUN on
2009 Apr 15
32
cLVM on Debian/Lenny
Hi - Is there someone around who successfully got cLVM on Debian/Lenny working? I was wondering if I was the only one facing problems with... Thanks in anticipation, -- Olivier Le Cam Département des Technologies de l''Information et de la Communication CRDP de l''académie de Versailles _______________________________________________ Xen-users mailing list
2010 Jan 04
0
two nodes with different performance metrics
.../sec %CP /sec %CP 16 303 0 1714 0 253 0 295 0 1780 0 415 0 pxhorde0,300M,27770,31,63545,6,4150,0,31808,29,66540,4,582.4,0,16,303,0,1714,0,253,0,295,0,1780,0,415,0 -- John Madden Sr UNIX Systems Engineer Ivy Tech Community College of Indiana jmadden at ivytech.edu
2008 Sep 24
2
Xen management
Hi All, I''m currently installing RHEL 5.1 with Xen and I want to manage the server using a management console that is equivalent with VMware Console or Web based management. Is there any tools that is available today? Any advice? Setup Details: * no X server * xen kernel * rhel 5.1 * hp blade server cheers, janskey _______________________________________________
2008 Sep 24
2
Xen management
Hi All, I''m currently installing RHEL 5.1 with Xen and I want to manage the server using a management console that is equivalent with VMware Console or Web based management. Is there any tools that is available today? Any advice? Setup Details: * no X server * xen kernel * rhel 5.1 * hp blade server cheers, janskey _______________________________________________
2009 Jan 27
20
Xen SAN Questions
Hello Everyone, I recently had a question that got no responses about GFS+DRBD clusters for Xen VM storage, but after some consideration (and a lot of Googling) I have a couple of new questions. Basically what we have here are two servers that will each have a RAID-5 array filled up with 5 x 320GB SATA drives, I want to have these as useable file systems on both servers (as they will both be
2008 Oct 16
9
Shared SAN disk LUN between 2 servers and migration problem
HI Dom0 is CentOS 5.2, 64-bit, Xen version 3.2.1 and 3.2.2. I got Fiber SAN disk system and 2 servers and i am making shared LUN available to both servers. Then i got multipath layer running on both Dom0s and so Xen is seeing device-mapper file, instead of two /dev/sdX devices, then i have setup Xen domU (HVM Windows 2003) using /dev/mapper/sharedLUN as physical storage to my windows server.
2008 Aug 04
23
Xen and iSCSI - options and questions
Hello, I have a small Xen farm of 8 dom0 servers with 64 virtual machines running para-virtualized and this has been working great. Unfortunately, I''ve hit a limit: my iSCSI hardware supports only 512 concurrent connections and so I''m pretty much at the limit. (Wish I would have seen that problem sooner!) Of course, 87% of those connections are idle-- but necessary because I
2009 Jun 25
8
Xen network tune for fileserver in DomU
Hello, gentlemen I need wise advice about how to tune  network for performance usage file server under domU I use bridged network. On dom0 network settings are: auto eth0 iface eth0 inet static address 192.168.1.100 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 up /etc/xen/scripts/network-bridge start bridge=br0 netdev=eth0 up ifconfig br0 up #up route add default gw
2011 Sep 09
17
High Number of VMs
Hi, I''m curious about how you guys deal with big virtualization installations. To this date we only dealt with a small number of VM''s (~10)on not too big hardware (2xquad xeons+16GB ram). As I''m the "storage guy" I find it quite convenient to present to the dom0s one LUN per VM that makes live migration possible but without the cluster file system or cLVM
2008 Feb 14
5
On an eight cpu system domU ''cap'' can only be set to 100
On a 8 Core system only dom0 can set cap > 100 and vcpus > 1. On a domU ''xm sched-credit -d <domU> -c 200'' says "Error: cap is out of range". Vcpu cannot be set higher than 1 - regardless of boot/config/command line. Low performance is equivalent to the cap setting. See ''xm list --long'': (domain (domid 0) (uuid
2007 Oct 16
7
Xen with NIC Bonding on Debian Etch ?
Hi guys, I am trying to get bonding work on a debian etch system. I searched already in the mailing list but unfortunately I couldnt find a proper solution. This is what i did so far. - Installed Debian Etch on my server - Installed the following packages for using Xen from the Debian repository: xen-hypervisor-3.0.3-1-i386-pae linux-image-2.6.18-5-xen-686 linux-image-2.6.18-5-xen-686 xen-tools
2010 Oct 14
12
best practices in using shared storage for XEN Virtual Machines and auto-failover?
Hi all, Can anyone pleas tell me what would be best practice to use shared storage with virtual machines, especially when it involved high availability / automated failover between 2 XEN servers? i.e. if I setup 2x identical XEN servers, each with say 16GB RAM, 4x 1GB NIC''s, etc. Then I need the xen domU''s to auto failover between the 2 servers if either goes down (hardware
2009 Sep 18
36
streaming server on a virtual machine.
I need to installa a streaming server for live videos and for video on demand. My choice is red5. Do you think I can use a xen virtual machine to run a streaming service? Or it is better not to virtualize? Sorry for my bad english. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
2009 Jan 01
20
Large server, Xen limitations
Hi, we''re contemplating getting a large new server, where we will run a number of virtual servers. Are there any things we need to keep in mind in that case? Are there limitations on what a Xen system can manage? We''re talking about a 4 x Quad core CPU server with 64 GBs of RAM and a couple of terabytes of RAIDed SATA storage. -Morten (Re-sending this, as the first message