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How To Troubleshoot Physical Connection Issue on SAN Switch

Introduction In this post we will cover how to perform some basic troubleshooting on SAN switch connections that can lead to high enc_out/ crc_err /loss sig (for Brocade) or exceeded bit-error threshold (for cisco) and bad connections as well. What Can Cause Connection Issues? Here are some of the items that can lead to bad / faulty SAN Connections. Faulty or bad cable. Faulty or bad Gigabit Interface... read more

Using PowerShell for EMC XtremIO

Introduction EMC have released XIOS version 4.1.10-33 and XMS version 4.2 recently and with this release they have added PowerShell support. Being a PowerShell guy this is a good thing for automation and maintaining EMC XtremIO. In this post we will cover downloading and installing PowerShell for XtremIO and a few of the available features. Installation Download the PowerShell Modules for XtremIO from... read more

How To Migrate To New WWN’s on VNX

Overview This document covers how to add a host initiator that is not logged into the fabric or VNX. The reason we would do such an operation is when systems (Blades) are moved to another chassis or HBA cards replaced that change the WWN, that will allow the system to login and see the assigned storage. This is useful in network refreshes and in addressing hardware failures. Several items are needed... read more

Using fsutil to Manage Windows Filesystems

Introduction Fsutil performs tasks that are related to file allocation table (FAT) and NTFS file systems, such as managing reparse points, managing sparse files, or dismounting a volume.   Command Syntax Fsutil 8dot3name Queries or changes the settings for short name behavior on the system, for example, generates 8.3 character-length file names. Removes short names for all files within a directory. Scans... read more

How To Install and Config PowerPath on RHEL

Introduction PowerPath is EMC licensed software for managing SAN attached storage on your systems. In this post we will cover how to install, license and scan for newly attached storage. Prerequisites Download the PowerPath software from EMC powerlink website. If you’ve purchased EMC support, you should have access to powerlink. For RHEL 4 EMCpower.LINUX-5.3.0.00.00-185.rhel.x86_64.rpm... read more

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