首页> 外文期刊>Computers, IEEE Transactions on >Transparent Fault Tolerance of Device Drivers for Virtual Machines
【24h】

Transparent Fault Tolerance of Device Drivers for Virtual Machines

机译:虚拟机设备驱动程序的透明容错能力

获取原文
获取原文并翻译 | 示例

摘要

In a consolidated server system using virtualization, physical device accesses from guest virtual machines (VMs) need to be coordinated. In this environment, a separate driver VM is usually assigned to this task to enhance reliability and to reuse existing device drivers. This driver VM needs to be highly reliable, since it handles all the I/O requests. This paper describes a mechanism to detect and recover the driver VM from faults to enhance the reliability of the whole system. The proposed mechanism is transparent in that guest VMs cannot recognize the fault and the driver VM can recover and continue its I/O operations. Our mechanism provides a progress monitoring-based fault detection that is isolated from fault contamination with low monitoring overhead. When a fault occurs, the system recovers by switching the faulted driver VM to another one. The recovery is performed without service disconnection or data loss and with negligible delay by fully exploiting the I/O structure of the virtualized system.
机译:在使用虚拟化的整合服务器系统中,需要协调来自来宾虚拟机(VM)的物理设备访问。在这种环境中,通常为该任务分配一个单独的驱动程序VM,以增强可靠性并重用现有的设备驱动程序。该驱动程序VM必须处理所有I / O请求,因此必须高度可靠。本文介绍了一种从故障中检测并恢复驱动程序VM的机制,以提高整个系统的可靠性。提出的机制是透明的,因为来宾VM无法识别故障,并且驱动程序VM可以恢复并继续其I / O操作。我们的机制提供了基于进度监控的故障检测,该故障检测与故障污染隔离,且监控开销较低。发生故障时,系统会通过将发生故障的驱动程序VM切换到另一个来恢复。通过充分利用虚拟化系统的I / O结构,可以在不造成服务中断或数据丢失且延迟可以忽略的情况下执行恢复。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号