Re: [Xen-users] Citrix Xen Server

[Fernando Berretta <fernando.berretta@xxxxxxxxx>]

James,

Thanks for your detailed response.

Comments inline.

Regards,
> Hi Fernando. We've been running SLES10/SLES11 xen servers for quite some
> time. We use ocfs2 for our storage. I've always had some nagging issues
> with memory, but the last two weeks I've had some major outages and
> problems. I have a couple tickets open with Novell right now. I think my
> issues are mostly ocfs2 related. 
>
> In the mean time I decided to try XenServer. At first it looks really
> great. The management gui is excellent, and easy to use. Once you have
> their xs-tools installed it extremely easy to moving a VM to another
> host without shutting it down. I have yet to get this working on my
> servers. 
>
> The major drawbacks I've come across this week compared to what we do
> now on sles are:
>
> -setting up a suse linux paravirtualized machine seems like major pain.
> converting my current sles VMs seems impossible, or at best very
> difficult.
>
> -we use a Xiotech SAN and although you can setup shared storage, you
> cannot use sparse files, so your storage requirements are a lot higher.
> As far as I can tell, the only way to use sparse files on XenServer is
> by using NFS. 
>
> -I feel like I lose a lot of flexibility, especially with linux VMs. on
> my current servers I can mount the disk files and access the files in
> them if needed. I can easily copy a disk file and then create a new VM
> based on that file. On XenServer I have copied a Windows VM and created
> another one, but I haven't figured out how to take a disk and create a
> VM using that existing virtual disk. 
>   
based on your comments, Seems like simplicity provided by Citrix GUI is 
against flexibility provided by XEN,  is very important for me also to 
be able to clone  machines based on  existing virtual disk,  I'm gonna 
investigate if there is some way to do that from XenServer.
> -getting help on the citrix forum is very hit and miss. you're lucky to
> get an answer very quickly as opposed to here where you typically get
> some kind of answer within hours, if not sooner.
>   
this is very important also, seems to be a great community here
> It could be that I'm just missing some important aspects of XenServer
> that I have yet to figure out. You should try it and see if it fits for
> you.
>
>   
I've Installed it and I'm gonna try it
> Now, back to my problems....
>
> James
>
>
>   
Thanks for your time
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>
>   

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