Posts Tagged ‘Storage’

Masking LUN paths using PowerCLI

Tweet
I got a question on my previous post about the Get-EsxCli cmdlet, ESXCLI the PowerCLI way, from Alasdair Carnie who was having trouble using the Get-EsxCli cmdlet to mask luns at the ESXi host level. In this post I’ll show you how to accomplish LUN masking at the ESXi host level.
Note 1:
Before you read any further, please [...]

Brocade Network Advisor Management Plug-in for VMware vCenter

Tweet
The storage network administrator drew my attention to the Brocade Network Advisor (BNA) Management Plug-in for VMware vCenter.
Brocade Network Advisor
Brocade Network Advisor provides a unified network management solution across Brocade Fibre Channel SANs, Fibre Channel over Ethernet (FCoE), Layer 2/3 IP switches and routers, Wireless, Layer 4/7 Application Delivery networks and Multiprotocol Label Switching (MPLS) [...]

How to force a login on a QLogic HBA

Tweet
When running some storage test on an ESX 3.5 environment lately, I ran into a problem where a dead storage path disappeared after a rescan. While this was as expected, the storage path didn’t return after fixing it in the SAN and running a rescan again. After a reboot of the ESX server, the new [...]

Geographically dispersed cluster design

Tweet
Nowadays more and more companies have or are considering a 2nd datacenter in another site. Mostly the main reason for this 2nd datacenter is for disaster recovery purposes. There are 2 ways to utilize this 2nd datacenter. First one could choose for an active-passive setup, where in the 2nd datacenter bare-metal servers are waiting to [...]

List HBA WWPNs and LUNs using Powershell

Tweet
Lately I’m moving around my VMs and storage luns between my ESX clusters a lot to accomplish a complete redesign of my Virtual Infrastructure. At some point I got lost and didn’t had the complete overview anymore. Which luns were attached to which cluster? To remove(unpresent) a lun from an ESX host/cluster on the storage [...]

Virtualization links for this week

Tweet
I’ve been really busy this week

patching my ESX hosts
troubleshooting ballooning problems
moving ESX hosts to other SAN switches
troubleshooting network/vlan problems
putting some effort in helping people out on the VMTN forum. Hey, I even got a top 5 ranking this week
AND reading all those magnificent articles I found out this week

Whenever you are seriously interested in VMware [...]

VMware vCenter Data Recovery

Tweet
When taking the VMware vCenter Data Recovery lab on VMworld Europe 2009 I was totally surprised about this new product. The product, which will be part of the new vSphere line of products, is a complete disk based backup and restore solution. In my opinion it’s mainly aimed at SMB organizations however.
The product is build [...]

VMware Storage Sudoku

Tweet
Last Friday I was brainstorming with Gabrie van Zanten about the optimal placement of the VMDKs across our LUNs. We tried to come up with an algorithm that could give us insight in what would be our optimal storage layout.
First read the complete post here.
This weekend I was continuously thinking about this challenge.
I came up [...]