How to Setup MultiPath (MPIO) with Nimble Storage and Citrix XenServer

Hi All Friends, Here's a follow up to my Citrix XenServer blog that showed you how to attach Nimble Storage to XenServer.  This article will show you how to set up MPIO with Nimble and XenServer.  It was written by a colleague of mine, so a HUGE thanks to Klaus Kupfer!!  1.  Configure each Data Interface on the Nimble Array to a different subnet. 2. Configure Multipathing on the XEN Host       a.       Put XEN Server in Maintenance Mode  b.      Access XEN Server Properties   c.       Enable Multipathing d.      Exit Maintenance Mode 3....

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Didja Know? VMware Converter for Correcting Misalignment!

Hi All, Another in my series of "Didja Know?"  This might be old news to you, but I just found out that version 5 of the VMware vCenter Converter will fix virtual machine misalignment!  So what is misalignment and why should you care?  That's a blog all in its own, but basically it's when the guest file system doesn't match the block boundaries of the storage system.  Okay, so what?  The problem is data gets split between storage blocks and you get partial reads and writes to many more blocks than you would need if the storage and OS were aligned.  This can result in a lot more work on your storage device than is necessary.  For those that don't know, this is much more common than you realize...

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Posted in: vCenter,VMware,VMware vCenter Converter

Cisco UCS 101 - VLAN's made easy

Hi Friends, If you're like me you know just enough networking to be dangerous.  Sure I can log into a Cisco switch and add new machines to an existing VLAN and other simple things, but create a VLAN?  I'd have to do some Googling to do that!  I've been working with a Cisco UCS and I have to say this thing is VERY cool!  When you're working in a lab environment you'll soon discover you start bumping into your neighbors, accidentally use their DHCP addresses, AD server etc.  You can create new private IP ranges, but since you're on the same VLAN you'll start effecting each others work. An easy way to segment your work off from your neighbors is to create a VLAN that your servers and storage can be dedicated...

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Posted in: Cisco,Vlan

Dân IT xây dựng thương hiệu cá nhân như thế nào?

Đối với “dân IT”, những người thường quen với code và màn hình vi tính hơn giao tiếp xã hội, làm thế nào để xây dựng một thương hiệu cá nhân thuyết phục? Chris Shayan – Giám đốc Công Nghệ Thông Tin VietnamWorks [ The original article in English can be found HERE. ] Hiện nay việc xây dựng một thương hiệu riêng cho bản thân là một việc rất cần thiết. Bạn có biết, khi ai đó nhắc đến bạn, tên thương hiệu của bạn sẽ xuất hiện ngay trong suy nghĩ của người đó. Nó cũng giống như việc từ Google được sử dụng quá thông dụng đến nỗi khi nhắc đến “Google” thì mọi người sẽ nghĩ ngay đến từ “search” (tìm kiếm). Vậy làm sao để xây dựng thương hiệu cá nhân của mình? Có rất nhiều cách, tùy theo bạn làm trong ngành nào sẽ...

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Posted in: HR