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  • Can someone implement LVM on an existing single-hard disk system ?

    - by jfmessier
    I am using SuSE Linux (10) and I am considering expanding the available disk, without resizing an existing partition (which is not easy to do on a VM). Instead, I want to create another virtual disk, and add it in a new LVM volume, which would include the existing disk, and this new one, in a seamless single mount point. We are using VMware vServer 4, under Lab Manager and Virtual Centre. Does SuSE support LVM in version 10 ? Thanks :-)

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  • Can someone implement LVM on an existing single-hard disk system ?

    - by jfmessier
    I am using SuSE Linux (10) and I am considering expanding the available disk, without resizing an existing partition (which is not easy to do on a VM). Instead, I want to create another virtual disk, and add it in a new LVM volume, which would include the existing disk, and this new one, in a seamless single mount point. We are using VMware vServer 4, under Lab Manager and Virtual Centre. Does SuSE support LVM in version 10 ? Thanks :-)

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  • Build a server in KVM linux

    - by Lai Yu-Hsuan
    I owned a linux server. Now there are several users want to build web services on it, but they require different enviroments. For convenience I give a KVM virtual machine root permission to each user. But obviously the linux server has only one IP. How can I deliver the external requests to corresponding virtual machine? (I expect it's somewhat complicated. If so I want at least some docs/websites I can start reading.)

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  • Run batch file with custom drive mappings

    - by mwolfe02
    I want to create a "mini virtual environment" to run a program. The only difference between my normal environment and the virtual one would be the drive mappings. I have an X: drive mapped to \\some\network\location I have a program myapp.exe that expects the X: drive to be mapped to C:\local\path I need to keep my X: drive mapped to \\some\network\location throughout the process I would like to be able to run the following batch file and not have it affect the current environment: subst X: C:\local\path myapp.exe

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  • How to deliver mail locally and to remote mta?

    - by Silvia
    I am running a postfix server and now I would like to know if I can configure postfix to deliver mail to a virtual domain locally and also forward it to a second remote mta. The problem is that both mta handle the same virtual domains so virtual_alias_maps, bcc or anything other address/domain related will not work. If this setup is not possible with postfix, is there another mta (maybe exim?) that is capable of doing this?

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  • <VirtualHost fqdn.mydomain.com:80> not recommended?

    - by Alois Mahdal
    In Apache2 documentation thay say that in <VirtualHost *:80>, the * can be replaced by IP or FQDN, but the FQDN is not recommended. Addr can be: The IP address of the virtual host; A fully qualified domain name for the IP address of the virtual host (not recommended); But why is it not recommended? If I have www.mydomain.com and webmail.mydomain.com pointing to the same IP address, why shouldn't I use the names here?

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  • Postfix sends every mail twice

    - by Savvas Sopiadis
    Could someone please tell me, why Postfix sends each message twice? I noticed that one message is correctly send and the other may (or may not) have a problem with the encoding. To be honest i did some adjustments for virtual domains, users,.... but i cannot find why these configurations should not work. I have the slight feeling it has something to do with virtual users, but i could also be wrong! Thanks in advance

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  • How to mount a drive with read only permission

    - by Master
    I am using this is fstab to mount the partition at backup. /dev/sda5 /media/virtual ntfs defaults 0 0 When i reboot the permissions are automatically set to 777. I want that only one user i.e userA can read and write , all others should not see the contents of that drive. What should i do anything like /dev/sda5 /media/virtual ntfs userA 700 defaults 0 0

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  • Load balancers, multiple data centers and url based routing

    - by kunkunur
    There is one data center - dc1. There is a business need to setup another data center - dc2 in another geography and there might be more in the future say dc3. Within the data center dc1: There are two web servers say WS1 and WS2. These two webservers do not share anything currently. There isnt any necessity foreseen to have more webservers within each dc. dc1 also has a local load balancer which has been setup with session stickiness. So if a user say u1 lands on dc1 and if the load balancer decides to route his first request to WS1 then from there on all u1's requests will get routed to WS1. Local load balancer and webservers are invisible to the user. Local load balancer listens to the traffic on a virtual ip which is assigned to the virtual cluster of webservers ws1 and ws2. Virtual ip is the ip to which the host name is resolved to in the DNS. There are no client specific subdomains as of now instead there is a client specific url(context). ex: www.example.com/client1 and www.example.com/client2. Given above when dc2 is onboarded I want to route the traffic between dc1 and dc2 based on the client. The options that I have found so far are. Have client specific subdomains e.g. client1.example.com and client2.example.com and assign each of them with the virtual ip of the data center to which I want to route them. or Assign www.example.com and www1.example.com to first dc i.e. dc1 and assign www2.example.com to dc2. All requests will first get routed to dc1 where WS1 and WS2 will redirect the user to www1.example.com or www2.example.com based on whether the url ends with /client1 or /client2. I need help in the following If I setup a global load balancer between dc1 and dc2 do I have any alternative solutions. That is, can a global load balancer route the traffic based on the url ? Are there drawbacks to subdomain based solutions compared to www1 solution? With www1 solution I am worried that it creates a dependency on dc1 atleast for the first request and the user will see that he is getting redirected to a different url.

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  • Limit display/session resolution for machines @ VDI environment on RDS 2012

    - by WarP
    I have couple of windows 7 entprise virtual machines in collection as part of VDI environment - so users connecting to them through RDS 2012 web site. Is there any way to fix resolution of remote desktops, that user receives (instead of full screen all time) ? I've tried different group policies, but none of them are worked, probably because all those policies are for RDS sessions and not virtual desktops ... And i don't know how to limit resolution locally on win7 machine itself, so connecting users will receive fixed resolution.

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  • SQL Server - VMWare install - Utilize more RAM

    - by alex
    We have a SQL server machine - It’s a VMWare image (running on ESXi hardware etc..) It has windows 2008 x64 standard The SQL install is SQL 2008 standard The virtual machine has 12gb of RAM, and 4 virtual CPU The box is suffering from near 100% CPU a lot of the time I enabled the AWE- but SQL server only seems to use 3-4gb of RAM Is there a way of making it use more available ram more effectively? cache results for example..?

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  • How to reliably map vSphere disks <-> Linux devices

    - by brianmcgee
    Task at hand After a virtual disk has been added to a Linux VM on vSphere 5, we need to identify the disks in order to automate the LVM storage provision. The virtual disks may reside on different datastores (e.g. sas or flash) and although they may be of the same size, their speed may vary. So I need a method to map the vSphere disks to Linux devices. Ideas Through the vSphere API, I am able to get the device info: Data Object Type: VirtualDiskFlatVer2BackingInfo Parent Managed Object ID: vm-230 Property Path: config.hardware.device[2000].backing Properties Name Type Value ChangeId string Unset contentId string "d58ec8c12486ea55c6f6d913642e1801" datastore ManagedObjectReference:Datastore datastore-216 (W5-CFAS012-Hybrid-CL20-004) deltaDiskFormat string "redoLogFormat" deltaGrainSize int Unset digestEnabled boolean false diskMode string "persistent" dynamicProperty DynamicProperty[] Unset dynamicType string Unset eagerlyScrub boolean Unset fileName string "[W5-CFAS012-Hybrid-CL20-004] l****9-000001.vmdk" parent VirtualDiskFlatVer2BackingInfo parent split boolean false thinProvisioned boolean false uuid string "6000C295-ab45-704e-9497-b25d2ba8dc00" writeThrough boolean false And on Linux I may read the uuid strings: [root@lx***** ~]# lsscsi -t [1:0:0:0] cd/dvd ata: /dev/sr0 [2:0:0:0] disk sas:0x5000c295ab45704e /dev/sda [3:0:0:0] disk sas:0x5000c2932dfa693f /dev/sdb [3:0:1:0] disk sas:0x5000c29dcd64314a /dev/sdc As you can see, the uuid string of disk /dev/sda looks somehow familiar to the string that is visible in the VMware API. Only the first hex digit is different (5 vs. 6) and it is only present to the third hyphen. So this looks promising... Alternative idea Select disks by controller. But is it reliable that the ascending SCSI Id also matches the next vSphere virtual disk? What happens if I add another DVD-ROM drive / USB Thumb drive? This will probably introduce new SCSI devices in between. Thats the cause why I think I will discard this idea. Questions Does someone know an easier method to map vSphere disks and Linux devices? Can someone explain the differences in the uuid strings? (I think this has something to do with SAS adressing initiator and target... WWN like...) May I reliably map devices by using those uuid strings? How about SCSI virtual disks? There is no uuid visible then... This task seems to be so obvious. Why doesn't Vmware think about this and simply add a way to query the disk mapping via Vmware Tools?

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  • Can't create LVM due to: not found (or ignored by filtering)

    - by James
    I'm planning to use LVM for KVM, and when I try to create a VG it fails, so how can I create my VG and LV ? Thanks [root@server ~]# vgcreate virtual-machines /dev/sda Device /dev/sda not found (or ignored by filtering). Unable to add physical volume '/dev/sda' to volume group 'virtual-machines'. [root@server ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 2.0T 929G 976G 49% / tmpfs 3.9G 124K 3.9G 1% /dev/shm /dev/sda1 194M 57M 128M 31% /boot [root@server ~]# pvscan No matching physical volumes found

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  • Can a hard poweroff / outage / crash corrupt VMware snapshots?

    - by basic6
    Assuming a host system is running virtual machines (in VMware Workstation) and all their data is on a reliable storage (so no data corruption due to hdd failure). If that host crashes (kernel panic) while a vm is running, files on the virtual filesystem could be corrupted. But there's a snapshot (of the vm), taken before the crash. Is it safe to assume that reverting to the snapshot, the vm will be back in a clean state - or is there any way that this snapshot could have been corrupted by the crash?

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  • Where should I configure software installed by 3rd-party chef recipes?

    - by FRKT
    I'm provisioning a Vagrant virtual machine with Chef and it's amazing, but I'm unsure where I should put code to configure software installed by 3rd-party chef recipes. For example, I'm installing NGINX with this recipe but I need to configure the default virtual host to serve content from /vagrant/public instead of /var/www/nginx-default. Should I change the template of the 3rd-party recipe, or create another recipe that reconfigures it?

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  • suggest a 'headless' linux dist that i can use to play with firefox, Xvfb and selenium RC?

    - by significance
    i'd like to build a similar replica of the virtual server i hire from my hosting company in order to test a windowless application of firefox using Xvfb. i'd like to do so using a parallels virtual machine on OSX. i'm happy to run some commands to get info but i'm pretty much a linux noob so be gentle! at the moment this is all i really know: [GCC 4.1.2 20080704 (Red Hat 4.1.2-46)] on linux2 thanks :)

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  • Is it possible to dedicate a monitor for virtualbox use?

    - by bubu
    Configuration Windows 7 Intel i7-based platform ATI Raedon HD 5850 Display card Virtualbox with ubuntu 10.10 as guest Problem I wanted to connect another monitor to my current setup (Which is a single monitor, dell U2711 monitor) so that it would be dedicated to one (or more if possible) virtual machine and for virtual machine use only. Ideally, I do not want the windows desktop to extend to that particular monitor. Thanks for any help.

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  • Virtualbox in Headless mode

    - by ask
    I used the virtual machines in virtualbox in a "headless" mode instead of a GUI mode. what are the advantages of using it in a headless mode?? by headless does it mean that the server doesnt have a keyboard or monitor attached or does it mean that no window will "pop up" , denoting that it is ON(or any other status), when a virtual machine is worked with? what exactly does it mean? pls reply...

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  • not able to install Remote Console Plug-in

    - by Fliberdgibit
    Created Virtual Machine Tried to install VMware Remote Console Plug-in After installation process, went to the virtual machines Console to find the same as before. "The VMware Remote Console Plug-in is not installed or could not be found." Subsequent try to install wants to "Remove " the

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  • How to send Ctrl+Alt+F1 to window (to switch terminal remotely, not locally)?

    - by Vi
    when I press Ctrl+Alt+F{1..12}, it switches me to other virtual terminal. When I have VNC/rdesktop client (and there it is VMWare/Virtualbox with other Linux) I want to switch virtual terminal remotely, but just pressing Ctrl+Alt+F1 switches things locally. VirtualBox/VMWare often provides special means to send Ctrl+Alt+Del, but not Ctrl+Alt+F1. (I already know that I can log in over ssh and chvt)

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  • Migrating VMWare Fusion Bootcamp Partition to New Mac

    - by 107217170653252726124
    What is the best way for me to migrate my VMWare Fusion Bootcamp Partition to a new MAC. Preferably I would like to import the current bootcamp partition in as a strict virtual machine on the new mac, instead of in bootcamp. The "older mac" is about two years old, so I don't think there will be any compatibility issues, but i do not have enough disc space on the old machine to import it as a virtual machine, and then migrate it. Thanks for the help.

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  • Linux RHEL : Making disk image efficiently

    - by TheProfoundGeek
    I have a linux box having RHEL. Its disk (hda1) is having free space of about 25GB. I have an another disk (hda2) which is of 250GB having another RHEL instance, it's partitioned for 200GB. Data on the disk occupies about 21GB of data. The image of hda2 needs to be taken and restored on other disk of same specs. What is the best way to make image file of the hda2? Ideally the images size should be around 25GBs as the actual data on the disk is just 21GB. I am aware about the following two methods. Method 1 : Raw Image dd if=/dev/hda2 of=/path/to/image dd if=/path/to/image of=/dev/hda3 Question 1 : Will the above method make a gigantic image of 250GBs? Is it efficient? Method 2 : Compressed Image. dd if=/dev/hda2 | gzip > /path/to/image.gz gzip -dc /path/to/image.gz | dd of=/dev/hda2 Question 2 : I tried the method 2, its taking too long. What are the pit falls of this methods? Which of the above method id efficient and why? Is there any other Linux utility which can do the job? Third party tools are no no.

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