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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-9620) Improvements for Managed Storage
Date Wed, 03 Jan 2018 22:03:00 GMT


ASF GitHub Bot commented on CLOUDSTACK-9620:

mike-tutkowski commented on issue #2298: CLOUDSTACK-9620: Enhancements for managed storage
   Hi @rhtyd Sorry for the delay in responding. I believe I have addressed all of your points
except one (which I wanted to run past you before making any changes here).
   The one remaining issue is with where to place the SIOC code.
   SIOC is short for VMware Storage I/O Control.
   Initially I placed it under plugins/api/solidfire-sioc because 1) I wanted it to extend
the standard CloudStack API and I thought all API plug-ins needed to be placed in this location
and 2) originally there was SolidFire-specific code in here (hence the naming of some folders).
   As it turns out, in working with the customer for whom I originally developed this code
(the SIOC code, that is), I was able to extract all SolidFire-specific references.
   How's about this? If I go ahead and remove references to SolidFire from this SIOC code
(ex. folder naming, file naming, etc.), would you be OK with me placing it here: plugins/api/sioc?

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> Improvements for Managed Storage
> --------------------------------
>                 Key: CLOUDSTACK-9620
>                 URL:
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: KVM, Management Server, VMware, XenServer
>    Affects Versions:
>         Environment: KVM, vSphere, and XenServer
>            Reporter: Mike Tutkowski
>            Assignee: Mike Tutkowski
>             Fix For:
> Allowed zone-wide primary storage based on a custom plug-in to be added via the GUI in
a KVM-only environment (previously this only worked for XenServer and VMware)
> Added support for root disks on managed storage with KVM
> Added support for volume snapshots with managed storage on KVM
> Enable creating a template directly from a volume (i.e. without having to go through
a volume snapshot) on KVM with managed storage
> Only allow the resizing of a volume for managed storage on KVM if the volume in question
is either not attached to a VM or is attached to a VM in the Stopped state.
> Included support for Reinstall VM on KVM with managed storage
> Enabled offline migration on KVM from non-managed storage to managed storage and vice
> Included support for online storage migration on KVM with managed storage (NFS and Ceph
to managed storage)
> Added support to download (extract) a managed-storage volume to a QCOW2 file
> When uploading a file from outside of CloudStack to CloudStack, set the min and max IOPS,
if applicable.
> Included support for the KVM auto-convergence feature
> The compression flag was actually added in version 1.0.3 (1000003) as opposed to version
1.3.0 (1003000) (changed this to reflect the correct version)
> On KVM when using iSCSI-based managed storage, if the user shuts a VM down from the guest
OS (as opposed to doing so from CloudStack), we need to pass to the KVM agent a list of applicable
iSCSI volumes that need to be disconnected.
> Added a new Global Setting:
> For XenServer, added a check to enforce that only volumes from zone-wide managed storage
can be storage motioned from a host in one cluster to a host in another cluster (cannot do
so at the time being with volumes from cluster-scoped managed storage)
> Don’t allow Storage XenMotion on a VM that has any managed-storage volume with one
or more snapshots.
> Enabled for managed storage with VMware: Template caching, create snapshot, delete snapshot,
create volume from snapshot, and create template from snapshot
> Added an SIOC API plug-in to support VMware SIOC
> When starting a VM that uses managed storage in a cluster other than the one it last
was running in, we need to remove the reference to the iSCSI volume from the original cluster.
> Added the ability to revert a volume to a snapshot
> Enable cluster-scoped managed storage
> Add support for VMware dynamic discovery

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