Abstract: Implementations of the disclosure provides for determining status of a host operation without accessing the host in a shared storage environment. A method of the disclosure includes acquiring, by a processing device, a lease on a storage volume associated with a storage domain. The lease grants the processing device exclusive access to the storage volume. Responsive to acquiring the lease, a data structure associated with the storage volume is modified to indicate that data of the storage volume is invalid. An update operation is initiated with respect to the storage volume. Upon completion of the update operation, the data structure is updated to indicate that the data valid and the lease on the storage volume is released.

Abstract: Systems and methods for failure recovery in shared storage operations. An example method comprises: acquiring a lock with respect to a storage domain comprising a specified disk image; creating a transaction marker associated with the disk image; creating a component of a new volume associated with the disk image; destroying the transaction marker; and releasing the lock with respect to the storage domain.

Abstract: Systems and methods for host-storage connectivity monitoring. An example method may include: receiving first status information from a first host connected to a storage domain, processing the first status information to determine an operation status of the storage domain with respect to the first host, comparing the operation status of the storage domain with respect to the first host with an operation status of the storage domain with respect to a second host, and, in response to a determination that both the operation status of the storage domain with respect to the first host and the operation status of the storage domain with respect to the second host include one or more errors, maintaining an operational accessibility of the first host.

Abstract: Systems and methods for enabling disk image operations in conjunction with snapshot locking. An example method may include: attaching a first snapshot to a first virtual machine the first snapshot being stored within a disk image, generating, in view of the first snapshot, a second snapshot, the second snapshot being stored within the disk image, attaching the first snapshot to a second virtual machine, and causing the first snapshot to be locked in view of the second virtual machine performing one or more operations on the first snapshot, wherein the first virtual machine performs one or more operations on the second snapshot concurrent with the locking of the first snapshot.

Abstract: A processing device generates a live snapshot of a virtual disk image attached to a virtual machine, wherein generating the live snapshot comprises converting an existing read-write volume to a read-only volume. The processing device generates, from the read-only volume, a temporary snapshot of the virtual disk image, the temporary snapshot comprising a temporary read-write volume. The processing device attaches the temporary snapshot of the virtual disk image to a backup component and causes at least one of the backup component or a backup service to backup the virtual disk image from the attached temporary snapshot.