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Archive for the ‘VMware’ Category

VMware vSphere with IBM SVC, Stretched SVC, and SRM

Posted by bartvdw on 3131/0505/2012

Good information regarding VMware vSphere and IBM SVC, Strechted SVC, and finally with SRM. I’ve bundled some links which contain a nice overview as well as some technical information.

Bridging datacenters with VMware vSphere and IBM SAN Volume Controller – Part 1
http://virtualstoragespeak.wordpress.com/2011/05/25/bridging-datacenters-with-vmware-vsphere-and-ibm-san-volume-controller-%E2%80%93-part-1/

Bridging datacenters with VMware vSphere and IBM SAN Volume Controller – Part 2
http://virtualstoragespeak.wordpress.com/2011/05/27/bridging-datacenters-with-vmware-vsphere-and-ibm-san-volume-controller-%E2%80%93-part-2/

Bridging datacenters with VMware vSphere and IBM SAN Volume Controller – Part 3
http://virtualstoragespeak.wordpress.com/2011/06/21/bridging-datacenters-with-vmware-vsphere-and-ibm-san-volume-controller-%E2%80%93-part-3/

Deploying Stretched vSphere clusters with Site Recovery Manager on SAN Volume Controller
http://virtualstoragespeak.wordpress.com/2012/05/21/deploying-stretched-vsphere-clusters-with-site-recovery-manager-on-san-volume-controller/

V6.3.0 Configuration Guidelines for Extended Distance Split-System Configurations for IBM System Storage SAN Volume Controller
http://www-304.ibm.com/support/docview.wss?&uid=ssg1S7003701

Inter-data center workload mobility and failover with VMware vSphere and IBM System Storage SAN Volume Controller
http://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP101923

VMware HA and vMotion with stretched IBM System Storage SAN Volume Controller Cluster
http://kb.vmware.com/kb/2000948

Stretched Clusters and VMware vCenter Site Recovery Manager
http://www.vmware.com/files/pdf/techpaper/Stretched_Clusters_and_VMware_vCenter_Site_Recovery_Manage_USLTR_Regalix.pdf

Posted in IBM Storage, VMware | Leave a Comment »

Slight change in "restart" behavior for HA with vSphere 5.0 Update 1

Posted by bartvdw on 3030/0505/2012

http://www.yellow-bricks.com/2012/03/27/slight-change-in-restart-behavior-for-ha-with-vsphere-5-0-update-1/

Posted in VMware | Leave a Comment »

VMware vCenter SQL Express database reached maximum database size

Posted by bartvdw on 2929/0505/2012

Recently had a customer who’s SQL Express database for VMware vCenter reached the maximum database size. This made vCenter unavailable… It’s very simple to fix though!

Purging old data from the database used by vCenter Server
http://kb.vmware.com/kb/1025914

SQL Server Express
http://en.wikipedia.org/wiki/SQL_Server_Express

SQL Server 2008 R2 Express Database Size Limit Increased to 10GB
http://blogs.msdn.com/b/sqlexpress/archive/2010/04/21/database-size-limit-increased-to-10gb-in-sql-server-2008-r2-express.aspx

Posted in SQL, VMware | Leave a Comment »

VMware vCenter IBM plug-ins

Posted by bartvdw on 2929/0505/2012

IBM has different plug-ins for VMware vCenter to integrate their products with VMware. Below some links with information where to find them etc.

Storage

Server

Backup and Recovery

Reference:
IBM Plug-ins for VMware vCenter
http://darrylmiles.wordpress.com/2011/11/25/ibm-plug-ins-for-vmware-vcenter/

Posted in IBM Storage, IBM System x, IBM TSM, VMware | Leave a Comment »

Troubleshooting Virtual Machine snapshot problems

Posted by bartvdw on 2929/0505/2012

Excellent article explaining how to troubleshoot VM snapshot problems and explains what’s behind the scenes. In case you face snapshot problems, this article contains vital information that will help you.

Troubleshooting Virtual Machine snapshot problems
http://geosub.es/vmutils/Troubleshooting.Virtual.Machine.snapshot.problems/Troubleshooting.Virtual.Machine.snapshot.problems.html

Posted in VMware | Leave a Comment »

VMware vCenter Server Appliance & "Use Windows session credentials" checkbox

Posted by bartvdw on 1919/0303/2012

Encountered this little issue during last weekend when performing maintenance: after a reboot of the VMware vCenter Server Appliance it was no longer possible to open vSphere Client using the "Use Windows session credentials" checkbox… This was working perfect before and I could not find any related action regarding this functionality.

Solution: open the webinterface of the vCSA and go to the Network section. Verify that the hostname of the vSCA is it’s FQDN name. For some reason the FQDN part was gone in my configuration…

Posted in VMware | Leave a Comment »

VMware vSphere & NUMA nodes: Important information

Posted by bartvdw on 0808/0303/2012

Read the blog article below and the KB article @ VMware!!

The Importance of VM Size to NUMA Node Size
http://blogs.vmware.com/vsphere/2012/02/vspherenuma-loadbalancing.html

esxtop command showing high %RDY values for virtual machines running on NUMA enabled ESX/ESXi 4.1 hosts
http://kb.vmware.com/kb/1026063

Posted in VMware | Leave a Comment »

VMware vSphere Storage Appliance (VSA): First experience…

Posted by bartvdw on 0808/0303/2012

Recently I started to work with VMware vSphere Storage Appliance (VSA) for the first time. It operates nicely, however using Eager Zeroed Thick disks can take quiet some time depending on the size. Lazy Zeroed Thick & Thin provisioned disks don’t have that much difference with a stand-alone ESXi server installed on the same hardware. This a quiet important thing to know when you start working with it: if it takes time, just sit back and relax.

Also when performing P2V operations, this is important. I did the P2V operations 1 server on each ESXi host to it’s proper datastore, this worked well in the setup.

Regarding the installation: that’s easy! I recommend the command-line installation as it will give you more detailed information if it fails. Also don’t configure too much yourself on the ESXi hosts, just perform a setup, complete the TCP/IP for the service console and stuff, but do not add any vSwitches or anything, the setup of VSA will handle it. Also make sure you have only 1 datastore on each ESXi host before running the installer. You can change checks during the installation, but it’s not supported by VMware though.

One thing I do recommend during the installation is to format disks immediately. This will improve your performance afterwards.

Uninstall is also so easy to to (in case your performing some testing): run a batch file with credentials and that’s it! 1 thing though, you probably need to execute the command "set JAVA_HOME=C:\Program Files\VMware\Infrastructure\jre" before running the cleanup.bat script.

Install.exe command example: install.exe -u root -p password -ez -si 172.16.16.181 -ei 172.16.16.178 172.16.16.179 -nh -bs 192.168.201.1

Location cleanup.bat: %PROGRAMFILES%\VMware\Infrastructure\tomcat\webapps\VSAManager\WEB-INF\test\tool\

Install.exe /? :

usage: java ScriptedInstaller [-bn <arg>] [-bs <arg>] [-bv <arg>] [-ei <arg>]

[-ez] [-fv <arg>] [-nh] [-o <arg>] -p <arg> [-po <arg>] [-si <arg>] -u

<arg> [-vn <arg>] [-vs <arg>] [-vv <arg>]

Arguments:

-bn,–backendNetmask <arg> the netmask for backend network, optional

-bs,–backendStartIP <arg> the start IP for baeckend network, optional

-bv,–backendVlanId <arg> the vlanId for VSA backend network, optional

-ei,–esxIPs <arg> the IP address of the hosts, array of 2 or 3,

optional

-ez,–eagerZero format disks immediately, optional

-fv,–frontendVlanId <arg> the vlanId for frontend network, optional

-nh,–notConfigHACluster not configurate HA cluster, optional

-o,–ovfUrl <arg> the URL of the ovf files

-p,–esxPass <arg> the password of the hosts

-po,–httpsPort <arg> the HTTPS port of the vCenter, optional

-si,–startIP <arg> the first IP in the range used by VSA cluster,

optional

-u,–esxUser <arg> the username of the hosts

-vn,–vmotionNetmask <arg> the netmask for vmotion network, optional

-vs,–vmotionStartIP <arg> the start IP for vmotion network, optional

-vv,–vmotionVlanId <arg> the vlanId for vmotion network, optional

 

Removing a vSphere Storage Appliance cluster
http://kb.vmware.com/kb/2004838

VMware vSphere Storage Appliance
http://www.vmware.com/products/datacenter-virtualization/vsphere/vsphere-storage-appliance/overview.html

VMware vSphere Blog – vSphere Storage Appliance (VSA) ) Introduction
http://blogs.vmware.com/vsphere/2011/08/new-enhanced-vsphere-50-storage-features-part-4-vsphere-storage-appliance.html

RAID10 requirement for vSphere Storage Appliance (VSA) relaxed!
http://blogs.vmware.com/vsphere/2012/01/raid10-requirement-for-vsphere-storage-appliance-vsa-relaxed.html

A closer look at VMware’s Virtual Storage Appliance 1.0 (VSA)
http://virtualeverything.wordpress.com/2011/08/15/a-closer-look-at-vmwares-virtual-storage-appliance-1-0-vsa-part-1/

Posted in VMware | Leave a Comment »

Symantec Backup Exec reports warning regarding lsi_sas.sys after V2V conversion

Posted by bartvdw on 0808/0303/2012

Noticed this detail when I migrated some machines between a stand-alone ESXi 5.0 host and a cluster (no shared storage or anything) using vConverter 5.0 for Windows Server 2008 R2 machines: after the V2V conversion Symantec Backup Exec 2010 R3 reported a warning "Backup- \\SERVER.vanwellen.be\System?StateVSS Snapshot warning. File c:\windows\\systemroot\system32\drivers\lsi_sas.sys is not present on the snapshot."

What actually happens is that the following registry has been altered, reconfigure the key with the original (and correct) value solves the warning! No restart needed.

HKLM\SYSTEM\CurrentControlSet\services\LSI_SAS\ImagePath

Bad value (after V2V): \SystemRoot\system32\drivers\lsi_sas.sys

Good value (original): system32\drivers\lsi_sas.sys

Posted in Backup Exec, VMware, Windows | 2 Comments »

PowerShell: Return wandering VMs to their preferred ESX host

Posted by bartvdw on 0303/0909/2011

For the people that want to place VMs at specific ESX hosts, the scripts in the link below will make your life easy!

Return wandering VMs to their preferred ESX host

Posted in PowerShell, VMware | Leave a Comment »

 
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