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From Kevin Kluge <Kevin.Kl...@citrix.com>
Subject RE: Cloudstack Supporting Xenserver StorageLink storage pool
Date Mon, 25 Jun 2012 16:41:17 GMT
With NFS, XenServer can do thin provisioning in the VHD files.

With iSCSI (and without StorageLink), XenServer assumes the storage device does the thin provisioning.

-kevin


> -----Original Message-----
> From: Diego Spinola Castro [mailto:spinolacastro@gmail.com]
> Sent: Friday, June 22, 2012 10:46 AM
> To: cloudstack-dev@incubator.apache.org
> Subject: Re: Cloudstack Supporting Xenserver StorageLink storage pool
> 
> Kevin, as far as i know , thin provisioning is only supported using StorageLink.
> I'm going to receive my equallogic box next week and i choose equallogic for
> thin provisioning feature.
> 
> Any of you can setup a test environment  ?
> 
> 
> Diego
> 
> 
> 2012/6/20 Kevin Kluge <Kevin.Kluge@citrix.com>
> 
> > All of the EqualLogic deployments I'm aware of export iSCSI LUNs to
> > CloudStack and add the primary storage as type iSCSI in CloudStack.
> > There's a wide variety of storage used in production with CloudStack,
> > but EqualLogic is one of the more popular options.  I haven't heard of
> > anyone using StorageLink.
> >
> > With XenServer people use local disk, iSCSI, NFS, and Fiber Channel (via
> > PreSetup).   iSCSI and NFS are the popular choices.
> >
> > The challenge we have seen with XenServer and iSCSI is admin debugging
> > in the case of issues.  Many people don't know or understand the
> > volume commands needed in this environment, so if something goes
> wrong
> > the debugging process can be tedious (as compared to NFS, where you
> > can manage VHD files with ls,cp,etc).
> >
> > -kevin
> >
> > > -----Original Message-----
> > > From: Lucas Hughes [mailto:lucas.hughes@ecommerce.com]
> > > Sent: Wednesday, June 20, 2012 3:07 PM
> > > To: cloudstack-dev@incubator.apache.org; cloudstack-
> > > users@incubator.apache.org
> > > Subject: Re: Cloudstack Supporting Xenserver StorageLink storage
> > > pool
> > >
> > > On 06/20/2012 05:13 PM, Lucas Hughes wrote:
> > > > My enviroment that I am testing with has Equallogic San's that are
> > > > connecting to our XenServer 6.0 pool. I have setup a pre-setup
> > > > storage pool in Cloudstack that on the XenServer side uses the
> > > > Citrix StorageLink driver. We are getting issues with creating
> > > > vm's that have their root volume set to use the presetup storage tag.
> > > >
> > > > It seems that the common error is that storage repository type
> > > > cslg (Citrix Storage Link Gateway) is not supported. I am
> > > > wondering if this is issue with Cloudstack not supporting
> > > > storagelink drivers or weird Xenserver issue. Any feedback is
> > > > welcome and I am curious to hear from anyone else using Xenserver
> > > > and equallogic san's with cloudstack how things are working for them.
> > > >
> > > >
> > > Another question regarding Cloudstack and storage types. Xenserver
> > > has many different types of supported storage manage objects. From
> > > my earlier email I see that cslg is not supported. I was wondering
> > > if anyone here
> > has a
> > > list of storage mange objects that are in Xen that Cloudstack supports.
> > >
> > > --
> > > Lucas Hughes
> > > Cloud Engineer
> > > Ecommerce Inc
> >
> >

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