Zdroj:
Avocent ACS6000 Virtual Serial Port Concentrator
http://kb.vmware.com/kb/1022303
nedeľa 25. júla 2010
štvrtok 15. júla 2010
Windows 2008 R2 vo vSphere mrzne
Zdroj:
Troubleshooting SVGA drivers installed with VMware Tools on Windows 7 and Windows 2008 R2 running on ESX 4.0
http://kb.vmware.com/kb/1011709
http://vmwaretips.com/wp/2009/11/25/windows-2008-r2-and-windows-7-freeze-on-vmware-vsphere-4/
Troubleshooting SVGA drivers installed with VMware Tools on Windows 7 and Windows 2008 R2 running on ESX 4.0
http://kb.vmware.com/kb/1011709
http://vmwaretips.com/wp/2009/11/25/windows-2008-r2-and-windows-7-freeze-on-vmware-vsphere-4/
VMware View Composer 2.0.x is not supported in a vSphere vCenter Server 4.1
Zdroj:
VMware View Composer 2.0.x is not supported in a vSphere vCenter Server 4.1
http://kb.vmware.com/kb/1011292
VMware View Composer 2.0.x is not supported in a vSphere vCenter Server 4.1
http://kb.vmware.com/kb/1011292
streda 14. júla 2010
Storage offload v novej verzii vSphere 4.1
Vcera vysla nova verzia vSphere 4.1. Zaujimava je nova funkcionalita storage offload:
Zdroj: http://www.enterprisestorageforum.com/management/article.php/3892616/Storage-Arrays-Do-the-Grunt-Work-in-vSphere-41.htm
Zdroj: http://www.enterprisestorageforum.com/management/article.php/3892616/Storage-Arrays-Do-the-Grunt-Work-in-vSphere-41.htm
pondelok 12. júla 2010
štvrtok 8. júla 2010
Licencovanie a management VMware ESXi 3.5 free edition a standalone VMware ESXi 4.x
Ak je potrebne Standalone VMware ESXi 4.x managovat cez VMware vCenter, je potrebne zakupit vSphere licencie na dany pocet Socketov ESXi serverov.
Informacia z VMware Knowledge Base:
Adding an ESXi host to vCenter Server 4.0 fails with the error: Host cannot be added to the VCenter as there are not enough Virtual Center Agent Licenses
If an ESXi host is licensed with the free version of the license key, you cannot add it to vCenter Server. This license does not contain the VirtualCenter Agent, which is necessary to manage a host with vCenter Server. This feature remains locked as long as the host is licensed with the free version of the license key.
To add ESXi hosts to vCenter Server, you must license the ESXi hosts with:
* vSphere Essentials
* vSphere Standard, Advanced, Enterprise, or Enterprise Plus
Zdroj:
Adding an ESXi host to vCenter Server 4.0 fails with the error: Host cannot be added to the VCenter as there are not enough Virtual Center Agent Licenses
http://kb.vmware.com/kb/1018275
VMware KB linky pre zalicencovanie standalone VMware ESXi 4.x a ESXi 3.5 free edition:
Licensing ESX 4.0, ESXi 4.0, and vCenter Server 4.0
http://kb.vmware.com/kb/1010839
Licensing the free edition of ESXi 3.5
http://kb.vmware.com/kb/1006481
Managing an ESXi host with the ESXi Management kit
Tu upozornujem na fakt, ze ESXi Management Kit je nahradeny novou generaciou tzv. vSphere Essentials.
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1011567
Informacia z VMware Knowledge Base:
Adding an ESXi host to vCenter Server 4.0 fails with the error: Host cannot be added to the VCenter as there are not enough Virtual Center Agent Licenses
If an ESXi host is licensed with the free version of the license key, you cannot add it to vCenter Server. This license does not contain the VirtualCenter Agent, which is necessary to manage a host with vCenter Server. This feature remains locked as long as the host is licensed with the free version of the license key.
To add ESXi hosts to vCenter Server, you must license the ESXi hosts with:
* vSphere Essentials
* vSphere Standard, Advanced, Enterprise, or Enterprise Plus
Zdroj:
Adding an ESXi host to vCenter Server 4.0 fails with the error: Host cannot be added to the VCenter as there are not enough Virtual Center Agent Licenses
http://kb.vmware.com/kb/1018275
VMware KB linky pre zalicencovanie standalone VMware ESXi 4.x a ESXi 3.5 free edition:
Licensing ESX 4.0, ESXi 4.0, and vCenter Server 4.0
http://kb.vmware.com/kb/1010839
Licensing the free edition of ESXi 3.5
http://kb.vmware.com/kb/1006481
Managing an ESXi host with the ESXi Management kit
Tu upozornujem na fakt, ze ESXi Management Kit je nahradeny novou generaciou tzv. vSphere Essentials.
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1011567
streda 7. júla 2010
Zaujimave produkty od VMware
Zaujimave nove produkty pre VMware vCenter:
VMware vCenter Configuration Manager
(formerly EMC Ionix Server Configuration Manager) policy-driven automation detects deep system changes and identifies whether that change is within policy - an expected and acceptable behavior based on industry, regulatory, or your own self-defined best practices - or whether that change has created a compliance violation or security vulnerability.
http://www.vmware.com/products/configuration-manager/
Automate configuration management across virtual and physical servers, workstations, and desktops with VMware vCenter Configuration Manager. Increase efficiency by eliminating manual, error-prone and time-consuming work.
• Avoid configuration drift by automatically detecting and comparing changes to policies
• Maintain continuous compliance with out-of-the box templates and toolkits
• Automate and optimize server provisioning and application stack deployment in the datacenter
Also take a look at:
VMware vCenter Application Discovery Manager
Quickly and accurately map your application dependencies to accelerate datacenter moves, precisely plan infrastructure consolidations and confidently virtualize your business critical applications.
VMware Service Manager
VMware Service Manager develops a 100% web architected solution that automates IT Service Management processes in enterprise organizations.VMware Service Manager is independently verified to the highest level of ITIL compatibility for Incident Management, Problem Management, Change Management, Release Management, Configuration Management, Service Level Management and Availability Management.
Zdroj: http://www.ntpro.nl/blog/archives/1530-New-VMware-vCenter-Configuration-Service-and-Application-Manager.html
VMware vCenter Configuration Manager
(formerly EMC Ionix Server Configuration Manager) policy-driven automation detects deep system changes and identifies whether that change is within policy - an expected and acceptable behavior based on industry, regulatory, or your own self-defined best practices - or whether that change has created a compliance violation or security vulnerability.
http://www.vmware.com/products/configuration-manager/
Automate configuration management across virtual and physical servers, workstations, and desktops with VMware vCenter Configuration Manager. Increase efficiency by eliminating manual, error-prone and time-consuming work.
• Avoid configuration drift by automatically detecting and comparing changes to policies
• Maintain continuous compliance with out-of-the box templates and toolkits
• Automate and optimize server provisioning and application stack deployment in the datacenter
Also take a look at:
VMware vCenter Application Discovery Manager
Quickly and accurately map your application dependencies to accelerate datacenter moves, precisely plan infrastructure consolidations and confidently virtualize your business critical applications.
VMware Service Manager
VMware Service Manager develops a 100% web architected solution that automates IT Service Management processes in enterprise organizations.VMware Service Manager is independently verified to the highest level of ITIL compatibility for Incident Management, Problem Management, Change Management, Release Management, Configuration Management, Service Level Management and Availability Management.
Zdroj: http://www.ntpro.nl/blog/archives/1530-New-VMware-vCenter-Configuration-Service-and-Application-Manager.html
utorok 6. júla 2010
Kompresia dat, deduplikacia a Single Instance Storage
Single Instance Storage
'Single Instance Storage' is sometimes referred to by some as 'File Level Deduplicaiton'. 'Single Instance Storage' refers to the ability of a file system (or data storage container) to identify two or more identical files and to retain the multiple external references of the file while storing a single copy on disk.
Many of us have used or accessed technologies which leverage 'Single Instance Storage' as it has been the primary storage savings technology with Microsoft Exchange Server 5.5, 2000, 2003, & 2007. If you are familiar with Exchange Server you probably recall that the ability of 'Single Instance Storage' to reduce file redundancy is limited to the content within an Exchange database (or mailstore). In other words, multiple copies of a file may exist, but each individual database will only maintain a single copy.
Are you aware that Exchange Server 2010 has discontinued support for 'Single Instance Storage'? Seems Microsoft has left it to the storage vendors to provide capacity savings.
Data Deduplication
'Data Deduplication' is best described as block, or sub-file level deduplication, which is the ability to reduce the redundancy in two or more files which are not identical. Historically the storage and backup industries have used the term 'Data Deduplicaiton' specifically to mean the reduction of data at the sub-file level. I'm sure many of you use technologies which include 'Data Deduplication' such as systems from NetApp, Data Domain, or Sun Microsystems.
With 'Data Deduplication' data is stored in the same format as if it was not deduplicated with the exception that multiple files share storage blocks between them. This design allows the storage system to serve data without any additional processing prior to transferring the data to the requesting host.
In summary, 'Data Deduplicaiton' is an advanced form of 'Single Instance Storage'. It exceeds the storage savings provided by 'Single Instance Storage' by deduplicating both identical and dissimilar data sets.
Data Compression
Probably the most mature technology of the bunch is 'Data Compression'. I'm sure we are all familiar with this technology as we use it every day in transferring files (ala WinZip) or maybe even dabbled with NTFS compression with some of your Windows systems.
In the example below we have two virtual machines, each running the same Guest Operating System, yet unique objects in their security realm, and storing dissimilar data sets. This example represents common deployments of VMware, KVM, Hyper-V, etc... With 'Data Compression' the data comprising the VMs is rewritten into a dense format on the array. There is no requirement for the data to be common between any objects.
As data which has been compressed is not stored in a format which can be directly accessible by the requesting host, it falls onto the storage controller to decompress the data prior to serving it to a host. This process will add latency to the storage operations.
Many of you may be surprised to know that NetApp arrays provide both 'Data Deduplicaiton' and 'Data Compression'. I'll share more on the later in my next post; however, relative to this discussion I can share with you that while we see performance increases with 'Data Deduplication', 'Data Compression' does add an additional performance tax to the storage system.
Note, these technologies are mutually inclusive, so compressed data sets gain the advantage of TSCS to help offset the performance tax.
In summary, 'Data Compression' is a stalwart of storage savings technologies which can provide savings unavailable with 'Single Instance Storage' or 'Data Deduplication'. Because of the performance tax of 'Data Compression' one should restrict it's usage to data archives and NAS file services.
Wrapping Up This Post
Storage savings technologies are all the rage of the storage and backup industries. While every vendor has their own set of capabilities, it is in the best interest for any architect, administrator, or manager of data center operations to have a clear understanding of which technology will provide benefits to which data sets before enabling these technologies. Saving storage while impeding the performance of a production environment is a sure-fire means to updating one's resume.
Suffice to say these technologies are here, and they are reshaping our data centers. I hope this post will help you to better understand what your storage vendor means when he or she states that they offer 'deduplicaiton'.
Zdroj: http://blogs.netapp.com/virtualstorageguy/2010/06/data-compression-deduplication-single-instance-storage.html
'Single Instance Storage' is sometimes referred to by some as 'File Level Deduplicaiton'. 'Single Instance Storage' refers to the ability of a file system (or data storage container) to identify two or more identical files and to retain the multiple external references of the file while storing a single copy on disk.
Many of us have used or accessed technologies which leverage 'Single Instance Storage' as it has been the primary storage savings technology with Microsoft Exchange Server 5.5, 2000, 2003, & 2007. If you are familiar with Exchange Server you probably recall that the ability of 'Single Instance Storage' to reduce file redundancy is limited to the content within an Exchange database (or mailstore). In other words, multiple copies of a file may exist, but each individual database will only maintain a single copy.
Are you aware that Exchange Server 2010 has discontinued support for 'Single Instance Storage'? Seems Microsoft has left it to the storage vendors to provide capacity savings.
Data Deduplication
'Data Deduplication' is best described as block, or sub-file level deduplication, which is the ability to reduce the redundancy in two or more files which are not identical. Historically the storage and backup industries have used the term 'Data Deduplicaiton' specifically to mean the reduction of data at the sub-file level. I'm sure many of you use technologies which include 'Data Deduplication' such as systems from NetApp, Data Domain, or Sun Microsystems.
With 'Data Deduplication' data is stored in the same format as if it was not deduplicated with the exception that multiple files share storage blocks between them. This design allows the storage system to serve data without any additional processing prior to transferring the data to the requesting host.
In summary, 'Data Deduplicaiton' is an advanced form of 'Single Instance Storage'. It exceeds the storage savings provided by 'Single Instance Storage' by deduplicating both identical and dissimilar data sets.
Data Compression
Probably the most mature technology of the bunch is 'Data Compression'. I'm sure we are all familiar with this technology as we use it every day in transferring files (ala WinZip) or maybe even dabbled with NTFS compression with some of your Windows systems.
In the example below we have two virtual machines, each running the same Guest Operating System, yet unique objects in their security realm, and storing dissimilar data sets. This example represents common deployments of VMware, KVM, Hyper-V, etc... With 'Data Compression' the data comprising the VMs is rewritten into a dense format on the array. There is no requirement for the data to be common between any objects.
As data which has been compressed is not stored in a format which can be directly accessible by the requesting host, it falls onto the storage controller to decompress the data prior to serving it to a host. This process will add latency to the storage operations.
Many of you may be surprised to know that NetApp arrays provide both 'Data Deduplicaiton' and 'Data Compression'. I'll share more on the later in my next post; however, relative to this discussion I can share with you that while we see performance increases with 'Data Deduplication', 'Data Compression' does add an additional performance tax to the storage system.
Note, these technologies are mutually inclusive, so compressed data sets gain the advantage of TSCS to help offset the performance tax.
In summary, 'Data Compression' is a stalwart of storage savings technologies which can provide savings unavailable with 'Single Instance Storage' or 'Data Deduplication'. Because of the performance tax of 'Data Compression' one should restrict it's usage to data archives and NAS file services.
Wrapping Up This Post
Storage savings technologies are all the rage of the storage and backup industries. While every vendor has their own set of capabilities, it is in the best interest for any architect, administrator, or manager of data center operations to have a clear understanding of which technology will provide benefits to which data sets before enabling these technologies. Saving storage while impeding the performance of a production environment is a sure-fire means to updating one's resume.
Suffice to say these technologies are here, and they are reshaping our data centers. I hope this post will help you to better understand what your storage vendor means when he or she states that they offer 'deduplicaiton'.
Zdroj: http://blogs.netapp.com/virtualstorageguy/2010/06/data-compression-deduplication-single-instance-storage.html
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