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Configuring device-mapper for CRS/ASM (Doc ID 357472.1)

Oracle 作者:rongshiyuan 时间:2015-03-04 16:20:33 0 删除 编辑

Configuring device-mapper for CRS/ASM (Doc ID 357472.1)


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Abstract
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Applies to:

Oracle Database - Enterprise Edition
Linux x86
***Checked for relevance on 11-Mar-2013***

Abstract

With the advent of Oracle Database 10g and Linux 2.6, customers have a true low cost computing solution. However, some customers that want high availability solutions have deployed products that has added to the overall price-point of implementations, thus increasing overall total cost of ownership (TCO).
One such example is the deployment of 3rd party I/O multi-pathing utilities by storage vendors. Customers now want a low or no cost replacement for these utilities, that are out of the box and stable solutions. This paper will focus on the configuration of two utilities that provide out-of-the-box I/O multipathing solutions and device naming persistency in the Linux 2.6 environment. Specifically we will illustrate how Automatic Storage Management (ASM) and Real Application Clusters (RAC) deployments can leverage these utilities.

History

.

Details

The following utilities will be reviewed:

  • udev – the role of udev is to provide device persistency and naming consistency.
    This is especially important for the OCR and Voting disks required by Oracle Clusterware.
  • device-mapper – Device-mapper will provide I/O path management for all Oracle devices, including ASM disk devices and OCR/Voting disks.
  • ASM - ASM will provide volume management for all Oracle database files.
  • ASMLib – ASMLib will provide device management specifically for ASM disk devices.

The complete whitepaper can be found here Linux-device-mapper-udev-CRS-ASM


 

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WHITE PAPER
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11-Mar-2013
11-Mar-2013
     
 

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