Blog Posts - San Stuff



How to check 'Native MPIO' on Windows 2008 Server - Enable or Disable?

This tip might help you guys to check the 'Native MPIO' setting on Windows 2008 Server from command line -To check the Native MPIO (Microsoft Multipath I/O) on Windows 2008 Server -If the Native MPIO is enabled, will show like below (DSM - Device Spe...

How to use 'powermt.exe' command with options to list the multipathing info

powermt.exe command line commands list with optionsThis command used to check / grab information about devices, ports, multipathing checking etc from command line interface. Here is the link to know more about 'powermt.exe' command. (Powerpath Softwa...

Navisphere CLI - General Commands

Physical Container-Front End Ports Speedsnaviseccli –h 10.124.23.128 port –list -sfpstatenaviseccli –h 10.124.23.128 –set sp a –portid 0 2naviseccli –h 10.124.23.128 backendbus –get –speeds 0SP Reboot and Shutdown GUInaviseccli –h 1...

How To: Verifying RAID Group Disk Order

The examples above are from an output of running the get Raid Group command from Navisphere Command Line Interface.Both RAID Groups are configured as Raid type 1_0.In an earlier blog we discussed the importance of configuring RAID 1_0 by separating t...

How the LUN Layouts Looks Like, here is some brief about -

This diagram shows three different ways in which the same 6 LUNs could be laid out on a RAID GroupIn example number 1, the two heavily utilized LUNs have been placed at the beginning and end of the LUNs in the RAID Group, meaning they were the first...

Different Ways to check WWN Numbers - Command Line Tool fccheck.exe

From SAN Surfer and if you have HP SIM installed on your server, can also check from there.You can uses one of the following ways to view WWNs: HBAnyware utility (Emulex HBA only)SANsurfer utility (Qlogic HBA only)SAN switch’s name server output If...

Command Line Command To Check R1 R2 Devices from Windows OS | EMC Storage Tools To check R1 R2 devices on Windows Server

Today I'm gonna publish a tip which relates to the Symmetrex storage devices which are connected to the Servers through fibre channelgo to command line --> go to root c:\type c:\inq -et(inq.exe should be available in your server / machine)EMC prov...

The Top Ten Storage Acquisitions of 2010

I originally posted a Top Ten acquisitions list in September, under the assumption that after the blockbuster HP-3PAR buyout we may have seen the last of the big storage acquisitions for the year. Wrong. The storage industry capped a crazy year of...

Replicating Boot Volumes

One key strategic decision that allowed for almost immediate failover to a DR site was replicating the boot volumes of tier 1 servers. I personally architected this with VMs, but the same can be done with a Windows server booting from the SAN. I have...

Fibre Channel SAN Configuration Rules

Single-initiator zoning rule :--Each HBA port must be in a separate zone that contains it and the SP ports with which it communicates. EMC recommends single-initiator zoning as a best practice. Fibre Channel fan-in rule:--A server can be zoned...

Symmetrix Remote Data Facility/Synchronous (SRDF/S)

Lets talk about SRDF feature in DMX for disaster recovery/remote replication/data migration. In today’s business environment it is imperative to have the necessary equipment and processes in place to meet stringent service-level requirements. Do...

"x32 and x64 bit Latest Drivers Download Link for A8003A/FC2242SR LPe11002 HBA Model - Emulex LPe11002"

"x32 and x64 bit Latest Drivers Download Link for A8003A HBA Model - Emulex LPe11002"x32 bithttp://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3954646&prodTypeId=12169&prodSeriesId=1809835&...

Storport SCSI Port Combination

If you use some older HBA, you will see there are two sets of drivers; storport and SCSIport. Bascially, Storport provides better I/O performance and widely used for new HBA.For old HBA, you can try to use Storport. However, SCSIport is more stable.H...

HBA Time Out

If you see Event ID 129 for your HBA as well as path connection drops by failover software,The description for Event ID ( 129 ) in Source ( elxstor ) cannot be found. The local computer may not have the necessary registry information or message DLL f...

How to do SAN Zoning

SAN zoning is a method of arranging Fibre Channel devices into logical groups over the physical configuration of the fabric. SAN zoning may be utilized to implement compartmentalization of data for security purposes.Each device in a SAN may be placed...

What is World Wide Name (WWN)

A World Wide Name, or WWN, is a 64-bit address used in fibre channel networks to uniquely identify each element in a Fibre Channel network. Soft Zoning utilizes World Wide Names to assign security permissions.The use of World Wide Names for security...

What are Hard and Soft Zoning?

Hard zoning is zoning which is implemented in hardware. Soft zoning is zoning which is implemented in software. Hard zoning physically blocks access to a zone from any device outside of the zone.Soft zoning uses filtering implemented in fibre channel...

What is a HBA?

A HBA, or Host Bus Adapter, is the interface card which connects a host to a SAN (Storage Area Network).A HBA could be more accurately referred to as a "Host I/O controller".


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