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NV-Hypervisor: Hypervisor-based Persistence for Virtual Machines
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BibTeX
@MISC{Sartakov_nv-hypervisor:hypervisor-based,
author = {Vasily A. Sartakov and Tu Braunschweig and Rüdiger Kapitza and Tu Braunschweig},
title = {NV-Hypervisor: Hypervisor-based Persistence for Virtual Machines},
year = {}
}
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Abstract
Abstract—Power outages and subsequent recovery are major causes of service downtimes. This issue is amplified by the ongoing trend of steadily growing in-memory state of Internetbased services which increases the risk of data loss and extends recovery time. Protective measures against power outages, such as uninterruptible power supply are expensive, maintenanceintensive and often fragile. With the advent of non-volatile random-access memory (NVRAM) provided by commodity servers, there is a scalable, less costly and robust alternative to recover from power outages and other failures. However, as of today, off-the-shelf software is not ready for benefiting from NVRAM. We present NV-Hypervisor a lightweight hypervisor extension that transparently provides persistence for virtual machines. NV-Hypervisor paves the way for utilizing NVRAM in virtualized environments (i.e., infrastructure-as-a-service clouds) and protects stateful services such as key-value stores and databases from data loss and time-consuming recovery.
Keyphrases
virtual machine hypervisor-based persistence power outage data loss present nv-hypervisor ongoing trend key-value store service downtime recovery time off-the-shelf software lightweight hypervisor extension in-memory state stateful service uninterruptible power supply protective measure internetbased service non-volatile random-access memory subsequent recovery commodity server virtualized environment abstract power outage robust alternative major cause time-consuming recovery infrastructure-as-a-service cloud
