Updated Guidance on Microsoft MPIO Settings

Last updated 2/22/2012   In the Microsoft Multipath I/O Step by Step guide for Windows Server 2008 R2 two new MPIO registry keys were introduced (UseCustomPathRecoveryInterval and PathRecoveryInterval) to mitigate a transient error. We issued post-release guidance previously and have recently updated our guidance as described below. For additional information about MPIO settings, please refer…


An update on Storage and Continuous Availability Enhancements in Windows Server 8

For those of you eager for more Windows 8 related news, there is a new blog posting from Thomas Pfenning , at the link below that details improvements in Storage and Continuous Availability for Windows Server 8: http://blogs.technet.com/b/server-cloud/archive/2011/09/20/storage-and-continuous-availability-enhancements-in-windows-server-8.aspx


Updated Guidance from the Exchange Server team on disk timeouts

In response to my recent post about the updated guidelines for Windows disk timeouts, the Exchange Server team has released  updated guidance on disk timeout settings with Exchange Server deployments. The article, titled “Windows Disk Timeouts and Exchange Server 2010” is available here: http://blogs.technet.com/b/exchange/archive/2011/11/17/windows-disk-timeouts-and-exchange-server-2010.aspx   Thanks,   Bruce


Using PowerShell to collect information for Storage Troubleshooting (Part 2: Performance Counters)

This is the second in a series of posts on how to utilize PowerShell to easily collect system information useful for troubleshooting Storage issues. Note: In a later installment of this series, I’ll be showing how to utilize the information gathered in these scripts for troubleshooting some common storage issues. In my first installment, I…


FAQ: Storage Reference pages for Developers

Since the information on TechNet and MSDN can unfortunately be quite spread out, I wanted to post this consolidated list of resources for Storage driver developers, to keep this in one location.   Storage Devices Reference on MSDN The section includes references on the following Storage related items: Storage Routines Storage Structures and Enumerations I/O…


The Windows Disk timeout value: Less is better

Updated: 6/7/2012 As a result of some internal discussions around this, I decided that a blog post was long overdue on this topic, as the ramifications of setting the timeout value for Disk.sys are not commonly understood completely, and can lead to long recovery times in enterprise environments. The Windows Disk timeout is stored in…


Using PowerShell to collect information for Storage Troubleshooting (Part 1: Hotfixes and System Events)

This will be part of a series of posts on how to utilize PowerShell to easily collect system information useful for troubleshooting Storage issues. In my first installment, we will cover the collection of currently installed Hotfixes, and collection of specific system events related to storage.   Collecting a list of installed hotfixes: The following…