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Tuesday, July 19, 2011
Thursday, July 14, 2011
Whats new in Vsphere 5.0 VMFS 5.0
Lot has changed with vSphere 5.0 and so has one of the most under-appreciated “features”…. VMFS. VMFS has been substantially changed VMFS-5 uses GPT instead of MBR
- VMFS-5 supports volumes up to 64TB
- This includes Pass-through RDMs!
- VMFS-5 uses a Unified Blocksize –> 1MB
- VMFS-5 uses smaller Sub-Blocks
- ~30.000 8KB blocks versus ~3000 64KB blocks with VMFS-3
- VMFS-5 has support for very small files (1KB)
- Non-disruptive upgrade from VMFS-3 to VMFS-5
- ATS locking enhancements
VMware Unveils VMware vSphereR 5 and Comprehensive Cloud Infrastructure Suite
With nearly 200 new and enhanced capabilities, VMware vSphere 5 will continue to set the standard in virtualization, delivering better application performance and availability for all business-critical applications while automating the management of an increasingly broad pool of datacenter resources. VMware today also announced VMware vShield™ 5, VMware vCenter™ Site Recovery Manager 5, and VMware vCloud® Director 1.5, products that together with VMware vSphere 5 will amplify the value customers can realize from virtualized resources by enabling cloud-scale operations.
The VMware cloud infrastructure suite will help organizations build intelligent virtual infrastructures, which infuse highly virtualized environments with the automation, self-service and security capabilities customers need to:
- Deploy Business-Critical Applications with Confidence – Dramatic performance and scalability gains in VMware vSphere 5 will enable customers to run even the most resource-intensive business-critical applications in virtual and cloud environments.
- Respond to the Needs of the Business Faster with Cloud Agility – From rapidly provisioning new resources to intelligently managing ongoing operations, VMware's cloud infrastructure suite will radically simplify infrastructure management.
· Move to Cloud Computing with Trust – VMware is evolving security from a physical model to a virtual software model, driven and managed by policy, enabling customers to trust in the security of their applications and data regardless of where they reside or how frequently they move across various private, public and hybrid cloud environments.
· VMware vSphere 5: Advancing the Cloud Infrastructure Foundation
VMware vSphere, the most trusted, most widely deployed virtualization platform in the world, forms the foundation of VMware's cloud infrastructure suite. Architected to support the broadest range of virtual and cloud infrastructure needs, VMware vSphere is broadly utilized by enterprises, small and midsized businesses (SMBs), public cloud service providers and as the foundation for the growing virtual desktop infrastructure (VDI) market. An increasing number of customers are standardizing on VMware vSphere as their strategic IT platform.
· VMware vSphere 5 will support virtual machines (VMs) that are up to four times more powerful than previous versions with up to 1 terabyte of memory and 32 virtual CPUs. These VMs will be able to process in excess of 1 million I/O operations per second, which will far surpass the requirements of even the most resource-intensive applications. When combined with VMware vSphere 5's enhanced, simplified High Availability, these VM scalability and performance gains will allow customers to run their most business-critical applications with confidence in their performance and availability.
· VMware vSphere 5 will also introduce three new flagship features that extend the platform's unique datacenter resource management capabilities, delivering intelligent policy management to support an automated "set it and forget it" approach to managing datacenter resources, including server deployment and storage management. Customers define policies and establish the operating parameters, and VMware vSphere 5 does the rest. VMware vSphere 5's new Auto-Deploy, Profile-Driven Storage and Storage DRS features can save a customer with a 1,000-VM environment up to a full year of administrator time.
· "With VMware vSphere® 5 and the cloud infrastructure suite, the task of virtualizing our business-critical applications will be greatly simplified," said YP Chien, information intelligence manager, Kingston Technology. "This will help accelerate Kingston Technology's journey into cloud computing to achieve ultimate operational performance and business agility."
More details can be found in below link.
http://www.vmware.com/company/news/releases/vmw-cloud-infrastructure-071211.html
Thursday, July 7, 2011
Ho To negotiate like a Pro...
Whether it's buying a house, getting the best business deal, disputing your cell phone bill, haggling in a shop, or paying off your credit card, the basic principles of negotiation are the same. Just remember that even the most skilled and experienced negotiators will feel discomfort when negotiating. The only difference is a skilled negotiator has learned to recognize, and suppress the outward signs of these feelings.
Here are some useful steps, tips and warnings on how to negotiate like a pro!
Steps
- Decide on your breakpoint (the lowest amount or cheapest price you will accept in the deal, the "worst-case scenario").
- If you are representing someone else in a negotiation, get your client's agreement in writing to a target deal before hand. Otherwise, when you get them a great deal, they may decide they don't like it after all. Your credibility is the one that takes the hit.
- Know what you're worth. How much does the other party need you? Is what you're offering hard to come by, or a dime a dozen? How desperate are they? Who needs who more? And if you need them more than they need you, how can you give yourself an edge?
- Plan how you will move in your proposals. Your moves should be in ever-decreasing steps, which will give the impression that you are being "bled" and there is increasingly less bargaining range to be had.
- Open extreme. Open at your maximum sustainable position (the most you can logically argue for). Ask for what you want, and then some. When starting off a negotiation, don't be scared to make an outrageous request. You never know–you might get it! And what's the worst that could happen? They might think you're vain, or delusional; but they'll also know you have guts, and you value yourself, your time, and your money. Are you worried about insulting them, especially if making a very low offer to buy something? Remember that this is business, and if they don't like your offer, then can always counter-offer. Just be bold. If your opening offer is too close to your breakpoint, then you will not have enough bargaining range to concede to the other party as a way of giving satisfaction.
- Offer or request extras. What else can they give you that is of low value to them, and high value to you? Or what can you offer that is of low value to you, and high value to them? This is why retail stores offer employee discounts. Think along the lines of bartering, andbe creative . What do you have a lot of, or what can you offer with ease, that they would find valuable? Make a list of your skills and your stuff. Calculate how much they cost you, then find out how much they sell for.
- Research their costs (retail versus wholesale). Let's say you're doing business with a winery, for instance, and they want to pay you 5000 to perform there. You want 7500. Why not suggest that they pay you 5000 and give you a 3500 bottle of wine? It's worth 3500 bucks to you because that's how much you'd have to pay to buy it, but it costs them much less to produce that bottle. (This is, of course, assuming you like their wine!) Or, you can ask them for a 5% or 10% discount on all their wine. Presuming you buy wine regularly anyway, you'll save money, and they'll still make money from your purchases (just not as much).
- Offer to pay up front. An up front payment is always desirable to a seller, especially in situations where most people do not pay up front (such as car dealerships). As the buyer, you can also offer to buy in bulk, paying in advance for a certain number of products or services, in exchange for a discount. One tactic is to come into the negotiation with a pre-written check; ask to buy the product or service for that amount, and tell them that's your final offer. They may accept it, since the lure of an immediate payment is hard to resist. Finally, paying in cash rather than with a check or credit card, can be a useful negotiation tool because it reduces risk & transaction cost to the seller.
- Shop around, and bring proof. If you are buying a car and you know the other dealer will sell you the same car for $200 less, tell them so. Tell them the name of the dealer and salesman. If you'renegotiating a salary and you've researched how much people in equivalent positions get paid in your area, print out those statistics and have them handy.
- Always hold back a closer or two: One or two facts or arguments you can use when you sense the other side is close to a deal but needs that final push. If you are a broker and your client is going to buy this week whether this seller is willing or not, that is a great deal closer.
- Be ready to walk away. You know what your breakpoint is, and you know if that's not what you're getting. Be willing to walk out the door if that's the case. You might find that the other party will call you back, but you should feel happy with your efforts if they don't.
Tips
- If they surprise you with a very appealing offer, don't let on that you expected something less favorable.
- Preparation is 90% of negotiation. Gather as much information about the deal as you possibly can, evaluate all the key variables, and understand which concessions you can trade.
- Even when you are unsure, speak with authority, speaking louder than usual and giving the impression that you have done this many times before will close deals with people who are not experienced.
- Avoid soft exposing language when making your proposal. E.g. "the price is -about- £100″ or "I'm looking for £100″. Be firm in your proposals – "the price is £100″ or "I'll give you £100″
Warnings
- Never talk about their figure or price, as this subconsciously validates it- always talk about your figure instead.
- Acrimony is a deal killer. People will refuse deals just because they are pissed. This is why divorces drag on for years. Avoid hostility at all costs. Even if there has been hostility in the past, start each contact upbeat, positive, don't hold a grudge.
- Watch your body language – a skilled negotiator will pick up on non-verbal signals which may give away your true feelings.
- Never negotiate after receiving an unscheduled phone call. They're ready but you are not. State that you are not currently able to talk and ask to reschedule. This will give you time to plan ahead about responses to questions and to perform simple research.
- If someone is totally unreasonable, don't negotiate. Tell them to keep you in mind if they come down in price (or whatever). Negotiating when they are way out of line starts you out at way too weak a position.
By Writer
Tuesday, July 5, 2011
Recreate a Corrupt Vmdk file
To create a virtual machine disk:
- Log in to the terminal of the VMware ESX host.
- Navigate to the directory that contains the virtual machine disk with the missing descriptor file using the command:
cd /vmfs/volumes/vmfsvolume/dir
Note:
- If you are using a version of VMware ESXi, you can access and modify files and directories using the VMware vSphere client Datastore Browser or the vifs utility included with the vSphere CLI. For more information, see the section Performing File System Operations in vSphere CLI documentation.
- If you are using VMware Fusion, the default location for the virtual machine files is <home>/Documents/Virtual Machines.localized/<virtual machine>/ folder where <home> is your home folder, and <virtual machine> is the name of the virtual machine.
- Identify the type of SCSI controller the virtual disk is using. You can do this by examining the virtual machine configuration file (.vmx). The controller is identified by the line scsi#.virtualDev, where # is the controller number; there may be more than one controller and controller type attached to the virtual machine. This example uses lsilogic:
scsi0.present = "true"
scsi0.sharedBus = "none"
scsi1.present = "true"
scsi1.sharedBus = "virtual"
scsi1.virtualDev = "lsilogic"
- Identify and record the exact size of the -flat file using a command similar to:
# ls -l mydisk0-flat.vmdk
-rw------- 1 root root 1048576 Oct 11 12:30 mydisk0-flat.vmdk
- Use the vmkfstools command to create a new virtual disk:
# vmkfstools -c 1048576 -a lsilogic -d thin temp.vmdk
This command uses these flags:
-c <size> (This is the size of the virtual disk).
-a <virtual controller> (Whether the virtual disk was configured to work with BusLogic or LSILogic).
-d thin (This creates the disk in a thin-provisioned format).
Note: To save disk space, we create the disk in a thin-provisioned format using the type thin. The resulting flat file then consumes minimal amounts of space (1MB) instead of immediately assuming the capacity specified with the -c switch. The only consequence, however, is the descriptor file contains an extra line that must be removed manually in a later step.
The files temp.vmdk and temp-flat.vmdk are created as a result.
- Delete temp-flat.vmdk, as it is not needed. Run the command:
# rm temp-flat.vmdk
- Rename temp.vmdk to the name that is required to match the orphaned .flat file (or mydisk0.vmdk, in this example):
# mv temp.vmdk mydisk0.vmdk
- Edit the descriptor file with a text editor:
- Under the Extent Description section, change the name of the .flat file to match the orphaned .flat file you have.
- Find and remove the line ddb.thinProvisioned = "1" if the original .vmdk was not a thin disk. If it was, retain this line.
# Disk DescriptorFile
version=1
CID=fb183c20
parentCID=ffffffff
createType="vmfs"
# Extent description
RW 8388608 VMFS "mydisk0-flat.vmdk"
# The Disk Data Base
#DDB
ddb.virtualHWVersion = "4"
ddb.geometry.cylinders = "522"
ddb.geometry.heads = "255"
ddb.geometry.sectors = "63"
ddb.adapterType = "lsilogic"
ddb.thinProvisioned = "1"
The virtual machine is now ready for power on. Verify your changes before starting the virtual machine.