Category: Storage Configs for Unixadmin

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Storage Configuration information Center

  Read – SAN Guide for Beginners Read – SAN Storage Responsibilities for Enterprise System Administrators Read – Pre-Planning/Pre-work required for Storage Migrations in Unix. Read – SCSI Guide for Beginners Read – EMC Power Path commands for system administrators Read – Determine WWN for HBA...

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Linux Admin Reference – SUDO Configuration in RedHat Enterprise Linux

Sudo is different from the su command and is more flexible and more secure. The sudo command allows users to do tasks on a Red Hat Enterprise Linux system as another user. One significant advantage is that it can log usage. By default the program saves...

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Linux Admin Reference – Device Mapper Multipath ( DM-Multipath) Configuration – Red Hat Enterprise Linux 6

In Enterprise Linux Environment, External storage often permits devices to be accessed by multiple physical paths. This improves redundancy and availability. SAN environment Red Hat Enterprise Linux provides the device-mapper-multipath component to manage multipath capable storage and to present multipath devices to applications running on the...

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Solaris Admin Reference – Solaris Storage Multipathing – MPxIO ( aka STMS, SCSI_VHCI)

 What is Oracle Solaris Storage Multipathing MPxIO? MPxIO Provides multipath access to storage luns by grouping together the physical paths and presenting a single logical path. Supports both symmetric and asymmetric storage  Controls failover / failback of LUNs as appropriate due to path failures, either manually or...

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Solaris Storage Configuration – EMC VMAX + POWERPATH / MPxIO + VxVM

To simplify the Storage addition operation, i just made a quick cheat sheet for your easy understanding and  quick reference, since this information cannot be presented as html format i will be sharing it in image format, which you can print and use it as desk...

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SAN Storage Migration – Solaris with VxVM

This is a following post for my previous SAN migration post  Solaris host level SAN migration (with SVM) from Clariion to VMAX.   As discussed earlier in my previous post,  many organisations started migrating their Server storage from Old legacy SAN devices ( e.g. EMC Clariion )...

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Storage Operations – VxVM vs RHEL LVM2

  Storage Operation VXVM RHEL LVM2 Installation and Configuration Installed using Veritas installer Installed as part of standard build via rpm Scan for new devices # vxdctl enable # vgscan Print list of volumes # vxprint -v # lvdisplay -C Print current config (detailed) # vxdg list # vgdisplay   list volume...

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Solaris host level SAN migration from Clariion to VMAX – Hands on Lab

During the past two to three years,  many organisations started migrating their Server storage from Old legacy SAN devices ( e.g. EMC Clariion )  to new  powerful SAN storage ( e.g. EMC Symetrix VMAX) because of the low performance and maintenance costs involved with legacy storage....

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Volume manager Migration from LVM to VxVM in Linux – Part 1

  We all know that storage is key requirement for any server environment and the requirement for storage is always dynamic in nature. When we talk about the cost, providing highly redundant storage to each server is most expensive task for any organization and no company...

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Configuring Solaris 10 host with SAN storage ( EMC Clariion )

Configuring SAN storage is usual task of system administration in Enterprise network environment. And Of course  there is lot of  engineering activity involved in certifying a process , that defines the guidelines on what hardware / software matrix should be used for stabled operating environment. In this...

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