Proactive Tip of the Day: Disk Space

17 09 2010

Running out of disk space, especially on your boot drive can really create some problems.  If your organization is not actively monitoring space usage on drives, they should be.  Here is a quick way to run a query using the VMWare Community Powerpack and PowerGUI to be the hero and warn server admins about low space on your vms.

Grab PowerGUI here…

http://www.powergui.org/index.jspa

And grab the powerpack here…

http://www.virtu-al.net/2009/12/18/vesi-powergui-powerpack-v3/

To install the powerpack, go up to file and Powerpack management in PowerGUI.

 

Now keep an eye out for a query called VM Guest Disk Sizes under the Virtual Machines folder of the community PowerPack.

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Click on that query to let it run, and once finished, select the Disk0FreeSpace column to sort by the lowest number first.  Scroll on down to where you start getting numbers.  These numbers are free space on the C: drive in MB.  Personally, I think anything below 1GB is a red flag.  Alert the proper admins to clean up the drives and be the hero!

If you really want to go the extra mile, point the admin to a tool called Spacemonger.  This is a tool that hasn’t been updated in awhile, but still offers a great graphical view of the entire hard drive.  The larger the block, the larger the folder or file.  Grab it here…http://www.sixty-five.cc/download/.  Look for the Free Software tab and scroll down to SpaceMonger v1.4.0  Its a zip file, but the actual program requires no install.  You just run it, select Open, then select the drive you want to look at.  Be careful deleting things!

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VMWorld 2009 Notes: Availability Solutions and Futures

1 09 2009

Unplanned outages…
1. Expectations of availability are increasing.
2. RTO is decreasing. Less than 12 hours now.
3. Vmware can protect at each level: component, server, storage, and site.
4. HA– you can now do ha maintenance mode, individual vm health monitoring, priority of vm boot up (admission control).
5. How many vms can you fit on your hosts? You can make memory and cpu reservations per slot.
6. If a host fails…set your restart priority.
7. If you experience an isolated response where a host loses network connectivity, you can set it to turn off the vms or leave them on.
8. Vm monitoring let’s you reset vms if a guest blue screens. You can set the sensitivity of this. It uses a heartbeat to vmware tools to do this. You can set max resets.
9. VMWare FT. Vms run in lockstep, mirroring everything. Uses common disk. Fails over to shadow copy. You need a ft logging nic on each host. You can’t snapshot with FT on!!! What if I want to back it up?
10. Futures…protection for single component failures (like a san, or network), pre-empt failure (host retirement), stretched clusters let’s you set affinity on hosts to a certain site,
11. Netapp metrocluster can use FT to keep everything running across sites.
12. Futures…can dive deeper into the vm at application level to restart services etc based on application level things.
13. Host retirement. Can monitor things that can cause failure, such as hardware cpu and mem, and if it fails, it can put host into maintenance mode.





IPHONE 3GS

8 06 2009

16GB Iphone 3G S -199.99

32GB Iphone 3G S – 299.99

The new phone is faster, can capture video 3MP camera, has voice control, etc….and its available June 19th…..





Screenshot software made easy

8 06 2009

Do you need a small screenshot program that will let you capture regions, windows, full screen, and in several different formats? Try out greenshot. It works great, and after the capture, offers a few simple editing tools such as adding arrows and boxes to the screenshot. The current version is less than 1MB…and FREE!

http://greenshot.sourceforge.net/





Notes from the vSphere upgrade

1 06 2009

Here are a few tips from my experience with doing an in-place upgrade to vSphere….

1. If you are running vCenter and Update Manager in vms, make sure to move those vms off the host MANUALLY before trying to upgrade the host to vSphere.

2. When upgrading tools and hardware, and you have vCenter and update manager in vms, upgrade vCenter and Update Manager FIRST. This will make update manager and vcenter ready to use baselines and remediation to upgrade tools and hardware on other guests.

3. Use the vi client and login to the actual host that is running the vCenter and update manager vms, when upgrading tools and hardware on vCenter and update manager. Once they are upgraded, you can then log back in to your vCenter server like normal to do the other upgrades.

4. It may take an extra reboot of your vCenter of Update Manager vms for them to reliably see eachother after a tools/hardware upgrade.





vSphere upgrade part 3, step-by-step

26 05 2009

The following notes are from a series of vSphere update videos made available by vmware. These notes should help you upgrade your infrastructure step-by-step.

http://download3.vmware.com/vsphere/vsphere-migration-part3.html

Part 3: Upgrading VM tools and hardware

1. Upgrade vmware tools first, then the hardware.

2. There will be downtime for the vm during this process. One reboot for tools, one reboot for hardware.

3. Once you upgrade the tools and hardware, you can only use vSphere 4 to manage the vms.

4. Go to update manager, then go to upgrade baselines, then click the vms/VAs button.

5. There are two baselines here that cant be changed, that you will use to remediate your guests. VM Hardware Upgrade to Match Host, and VMware Tools Upgrade to Match Host.

6. Go to your inventory, and lets remediate (inventory, then vms and templates). Select a vm, then go to the update manager, right click in the window, and attach the tools and hardware baselines.

7. Scan the guest by selecting scan , then uncheck patchs, and check VM Hardware upgrades and VMWare tools upgrades. Click Scan.

8. If you like, you can now create a folder to group your vms, and attach a vm baseline to the folder, much like step 6.

9. Now lets remediate for vmware tools. Click remediate on the guests in upgrade manager, and make sure to upgrade tools first.

10. Now its time to remediate for hardware. Click remediate, select hardware, and the guests you want to upgrade. During the remediation, the guests will be shut down.

11. If you want very granular manual control, you can right click on an individual guest vm, and select install/upgrade vmware tools. Make sure to snapshot first!

12. After the guest upgrade the tools, you can shut it down, right click on it, and select upgrade virtual hardware. Keep in mind, steps 11 and 12 are just a different manual way to do it, if you dont want to use update manager.

13. Get all your vm guests upgraded, first tools, then hardware. This ends part 3!





vSphere Upgrade links of interest

22 05 2009

VMware seems to be doing a very good job with letting people know how to upgrade to vSphere, but I thought I would add some links here to help anyone in the process…

Upgrade Center Blog….

http://communities.vmware.com/blogs/vSphere4upgradecenter

How to Upgrade to vSphere in Videos…

Intro: http://download3.vmware.com/vsphere/vsphere-migration-intro.html

Upgrade the Management Layer (vCenter, plugins, etc.)

Part 1: http://download3.vmware.com/vsphere/vsphere-migration-part1.html

Upgrade the ESX Hosts…

Part 2: http://download3.vmware.com/vsphere/vsphere-migration-part2.html

Upgrade the VMware tools and Hardware on the guests…

Part 3: http://download3.vmware.com/vsphere/vsphere-migration-part3.html

vSphere Licensing…

Part 4: http://download3.vmware.com/vsphere/vsphere-migration-part4.html

How to Upgrade Webcast…

http://www.vmware.com/a/webcasts/details/251