#VMF 512

[usaac-official]

An F4U-1D of VMF-512 prepares to launch from USS Gilbert Islands (CVE-107), 6 March 1945

[aviationwarhistory]

Corsair of VMF-512 launching from the flight deck of the escort carrier USS Sargent Bay CVE-83 – June 2, 1945

[ringlascl]

Mount vmdk mac

MOUNT VMDK MAC HOW TO

MOUNT VMDK MAC 32 BIT

MOUNT VMDK MAC WINDOWS 10

MOUNT VMDK MAC PRO

MOUNT VMDK MAC PC

MOUNT VMDK MAC HOW TO

Let’s explore how to view the content of VHD and VHDX virtual disk images in Linux.Ĭreate the directory to which you want to mount the VHD or VHDX images, for example, /mnt/vhd/: Thus, you can view the contents of VHD and VHDX files in Linux before you start to convert VHD to VMDK. In Linux VHD and VHDX, files can be mounted to a specified directory (mount point) in the console by using libguestfs tools. VHD files can be mounted to a directory on Linux and can be mapped to a specified drive letter in Windows. If you want only to extract files from VHD images, this section is what you need. This approach prevents you from confusing and wasting time on converting the wrong virtual disk. This is an optional step that allows you to ensure that a source VHD or VHDX virtual disk is healthy, and view contained files. Check the VHD Content Before You Convert VHD to VMDK 4-KB native sectors are supported for VMDK virtual disks, used by the newest versions of VMware products with VMF S6.ĭesigned for businesses of all sizes, NAKIVO Backup & Replication offers complete data protection for all of your production workloads, including VMware vSphere Backup, Hyper-V Backup, Microsoft 365 Backup and more. VMDK files can be mapped (mounted) to the specified mount point on your host machine if VMware Workstation is installed. Delta VMDK disks are created when taking VM snapshots. VMDK virtual disks can be divided into the following types and variations: monolithic, split, sparse, flat, as well as thin and thick provisioned. The maximum size of the VMDK virtual disk has been increased from 2 TB to 62 TB. VMDK image files can be regarded as containers to store data similarly as on physical hard disks, and have a high compatibility with diverse virtualization software. VMDK is an open format of virtual disk images that is used by VMware hypervisors, VirtualBox, QEMU etc., and is not supported by Hyper-V. VHDX images can be also mounted (attached) as a disk drive, displayed in Windows Explorer (My Computer) in the latest Windows versions thanks to the built-in VHDX driver.

MOUNT VMDK MAC WINDOWS 10

VHDX virtual disks can be created in the Disk Management window in Windows 10 and Windows Server 2016. However, Azure VMs can use only virtual disks of the VHD format. Generation 2 VMs support using both VHDX and VHD virtual disks. Is better protected against failures caused by power loss, comparing to VHD disks.Maximum disk capacity is 64 TB comparing to the 2-TB limit for VHD.VHDX is a semi-open file format and you can download this file format specification from Microsoft’s web site and create your own applications that work with VHDX files. The VHDX format has the wide area of usage – virtual disks of Hyper-V virtual machines and Microsoft cluster shared volumes. VHDX is the new version of the virtual disk format provided by Microsoft, which is the successor of the VHD format. Generation 1 Hyper-V VMs can use only virtual disks of the VHD format.The VHD format of virtual disks is also supported by VirtualBox and is still used in the Microsoft Azure Cloud.

MOUNT VMDK MAC 32 BIT

The maximum supported size of VHD files is 2 TB (2^32*512 bytes) where 32 bit is quantity and 512 bytes is the sector size.

Then, Microsoft presented Hyper-V as a substitution of Microsoft Virtual PC.

MOUNT VMDK MAC PC

Later, Microsoft bought Virtual PC and continued development of this virtualization product. VHD refers to the disk image format that was introduced as the virtual disk format of virtual machines for Connectix Virtual PC.

MOUNT VMDK MAC PRO

With the Free Edition, you can access all the features of the Pro Edition, for a single year, and with a limit of ten machines. The best way to find out if our solution suits you is to download the Free Edition of NAKIVO Backup & Replication. NAKIVO Backup & Replication can ensure robust protection of physical, virtual, and cloud workloads from a single pane of glass. Today’s blog post explains how to convert VHD to VMDK which may be useful when you want to convert Hyper-V VMs to VMware VMs. You cannot import VHD to VMware products until you convert Hyper-V VHD to VMware VMDK. The most popular virtual disk formats are VHD, VHDX, and VMDK. Converting virtual disks can be required when migrating a virtual machine from one hypervisor to another for testing purposes, or if you have selected an inadequate format of a virtual disk for your virtual machine (VM) during the VM’s creation. Sometimes you may need to convert a virtual disk file from one format to another. By Michael Bose How to Convert VHD to VMDK: A Step-By-Step Guide

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New Post has been published on https://www.tayfundeger.com/clustered-vmdk.html

Clustered VMDK

Merhaba,

Clustered VMDK isimli bu yazımda sizlere vSphere 7 ile birlikte gelen yeni bir özellikten bahsedeceğim. VMware, yeni vSphere sürümleri ile birlikte özellikle Windows Server Failover Cluster sistemlerde yenilikler yapmaya devam ediyor.

vSphere 7 ile birlikte storage tarafında önemli değişliklikler yapıldı. Bunları aralıklar ile yazmaya devam edeceğim. vSphere 7 ile birlikte VMware, virtual disk yani VMDK düzeyinde bazı değişiklikler yaptı. SCSI-3 Persistent Reservation yani SCSI-3 PR desteği geldi. Bu yeni bir terim bundan dolayı açıklamam gerekiyor.

SCSI-3 PR Nedir?

Aslında bunu ilk olarak VSAN 6.7 Update 3 ‘de duymuştuk. Daha önceki makalelerimi inceleyenler bunu görecektir. Windows Server Failover Cluster yani WSFC, cluster bir disk kaynağına erişimi koordine etmek için SCSI-3 PR komutlarını kullanır. Bu komutlar (SCSI Persistent Reserve Out ve Persistent Reserve IN), datastore’da bu özelliğin support edildiğini varsayılarak VSCSI katmanında işlenmeye başlar. Cluster VMDK’ları barındırmak için yapılandırılan bir datastore’lara bir clusteredVMDK datastore adı verilir.

Clustered VMDK

Bunun amacı aslında RDM disk’in gereksinimi azaltmaktır. VMFS datastore üzerinde bulunan virutal machine’lerde eğer shared disk kullanırsanız Windows Failover Cluster kullanabilirsiniz. Support edilen hardware ‘lerde spesifik bir datastore içerisinde bulunan vmdk’larda clustered vmdk desteğini etkinleştirebilir siniz. Böylece RDM’lerinizi VMFS datastore’a geçirebilir ve RDM kullandığınız için kaybetmiş olduğunuz yetenekleri tekrar kazanmanıza olanak sağlar. Yani Clustered VMDK desteği bize RDM disklerin yapmış olduğu yetenekleri bize sunuyor ve bunları sunarken RDM’de yaşamış olduğumuz kısıtlamaların büyük bir çoğunluğunu ortadan kaldırıyor.

Clustered VMDK

Bunu kullanabilmeniz için belirli gereksinimleri karşılamanız gerekiyor.

Gereksinimler:

Bu özelliği kullanabilmeniz için vSphere 7 ve üzeri versiyon kullanmanız gerekiyor. vSphere 7 ve önceki sümlerde support bulunmuyor.

ESXi host mutlaka ve mutlaka bir vCenter Server’a bağlı olmalıdır.

Cross vCenter Server support bulunmamaktadır. Windows Failover Cluster’ın bulunduğu ESXi host’ların aynı vCenter Server tarafından yönetilmesi gerekiyor.

VMFS6 datastore kullanılması gerekiyor.

Cluster için kullanılan VMDK’ların Eager Zeroed Thick yani EZT olmalıdır.

Cluster VMDK’ların mutlaka bir virtual SCSI Controller’a bağlı olması ve bus sharing’in physical olarak ayarlanması gerekir. Virtual machine’in boot disk’i ve cluster’da kullanılmayan disklerin ayrı bir virtual SCSI Controller üzerinde bulunmalı ve bus sharing none olarak i��aretlenmelidir.

Multi-Writer support edilmemektedir.

Multi Writer ile ilgili daha önce bir makale yazmıştım. Buna aşağıdaki diskten ulaşabilirsiniz.

Multi Writer Disk Kullanımı

Virtual machine’lerin farklı ESXi host’lar üzerine dağıtmak için mutlaka DRS Rule’u kullanmalısınız.

Clustered VMDK desteği, datastore oluşturulduktan sonra mutlaka enable duruma getirilmelidir. Bunu eğer disable duruma getirmek isterseniz datastore içerisinde bulunan virtual machine’lerde cluster VMDK bulunmaması gerekir. Eğer buna rağmen bu özelliği disable duruma getirirseniz virtual machine power on olmaz.

Yanlızca FC yani Fibre Channel Stroage protocol’unde kullanılır.

VMDK’ların barındığı fiziksel disk’in ATS support’u bulunmalıdır.

512/512e sektör size’lı diskler gerektirir.

    VMware, bunu test ederken Windows Server 2012 R2 / 2016 ve 2019 üzerinde test etmiştir. Yapılandırmanın doğru çalıştığını görmek için ise SQL Server 2016 kullanılmıştır. Ayrıca Cluster across Box support edilirken, Cluster in Box support edilmemektedir. Snapshot, Clone, Hot-add CPU/Memory değiştirme ve fault tolerance support edilmemektedir.

Bir Datastore oluştururken Clustered VMDK support’unun olup olmadığını datastore oluştururken görebilrisiniz. Datastore’u oluşturduktan sonra Clustered VMDK özelliğini aktif etmeniz gerekiyor. Bunu aktif ettiğinizde eğer istereniz daha sonra disable duruma getirebilirsiniz ancak disable duruma getirirken içerisinde virtual machine olmamasına dikkat etmeniz gerekiyor. Zaten içerisinde virtual machine var ise disable duruma getirmiyor. Böyle bir durumda bu datastore içerisindeki tüm virtual machine’lerin farklı bir datastore’a taşınması gerekiyor.

Clustered VMDK özelliğini aktif etmek istediğinizde karşınıza bir uyarı gelecektir. Özelliği aktif ettikten sonra, Windows Failover Cluster dökümanlarına göre virtual machine oluşturabilir ve böylece Clustered VMDK özelliğini kullanmaya başlayabilirsiniz.

Clustered VMDK özelliğini aktif ettiğinizde virtual machine üzerinde Paravirtual SCSI controller ekleyeceksiniz ve bunun sharing seçeneğini physical olarak ayarlayacaksınız. Bir EZT disk oluşturuyoruz. İkinci virtual machine üzerinde yine aynı şekilde Paravirtual SCSI Controller ekliyor ve sharing seçeneğini physical olarak değiştiriyoruz. Daha sonra use add in existing disk seçeneği ile 1. virtual machine üzerinde oluşturduğumuz diski ekliyoruz. Herşey bukadar aslında 🙂

vSphere 7 ile birlikte çok güzel özellikler geliyor ve özellik ile ilgili en kısa zamanda bir uygulama makaleside yazacağım.

Umarım faydalı olmuştur.

İyi çalışmalar.

[usaac-official]

An FG-1D of VMF-512 launches from USS Sargent Bay (CVE-83), 2 June 1945

[tayfundeger]

New Post has been published on VMware Virtualization Blog

New Post has been published on https://www.tayfundeger.com/what-is-vmfs.html

What is VMFS?

Hi,

VMFS 6 datastore came with vSphere 6.5, but there are some changes here. VMFS 6 has a partially different structure. There are a few changes compared to VMFS 5. I was actually expecting this variation in vSphere 6.0, but it came in vSphere 6.5. However, I would like to give a brief explanation. If you pay attention to the article in which I wrote the differences between VMFS 3 and VMFS 5, we could upgrade online from VMFS 3 to VMFS5 datastore. However, we will no longer be able to do this in VMFS 6 datastores that come with vSphere 6.5. Unfortunately, we do not have the chance to directly upgrade from VMFS 5 to VMFS 6.

What is VMFS?

If you already have VMFS 3 and VMFS 5 datastores in ESXi 6.5, you can continue to use them. However, when you want to create a new datastore, you cannot create a VMFS 3 datastore. You can only create VMFS 5 and VMFS 6 datastores. In addition, if you already have VMFS 3 and VMFS 5 datastores, you cannot directly upgrade them to VMFS 6 datastore. You can use VMFS 5 datastores after upgrading to vSphere 6.5, but if you want to switch to VMFS6 datastores, it will be to migrate the virtual machines in VMFS5 datastore to VMFS 6 datastore.

What is VMFS

It uses ESXi data stores to store virtual disks. Data warehouses are logical containers that hide the physical storage features of virtual machines and provide a uniform model for storing virtual machine files. The local vSphere Virtual Machine File System (VMFS) format is used in data stores that you deploy on block storage devices. It is a special high performance file system format optimized to store virtual machines.

Use the vSphere Client application to preset the VMFS data store on the block-based storage device your ESXi host finds. The VMFS data store can be expanded to include SAN LUNs and various physical storage devices including local storage. This feature allows you to combine storage and provides flexibility in creating the required data store for your virtual machines.

You can increase the capacity of the data store while virtual machines are running in the data store. This feature allows you to add new space to your VMFS repositories because your virtual machine requires it. VMFS is designed for simultaneous access from multiple physical machines and implements appropriate access controls on virtual machine files.

Comparing VMFS5 and VMFS6 Features and Functionalities VMFS5 VMFS6 Access for ESXi hosts version 6.5 and later Yes Yes Access for ESXi hosts version 6.0 and earlier Yes No Datastores per host 512 512 512n storage devices Yes Yes (default) 512e storage devices Yes. Not supported on local 512e devices. Yes (default) 4Kn storage devices No Yes Automatic space reclamation No Yes Manual space reclamation through the esxcli command. See Manually Reclaim Accumulated Storage Space. Yes Yes Space reclamation from guest OS Limited Yes GPT storage device partitioning Yes Yes MBR storage device partitioning Yes

For a VMFS5 datastore that has been previously upgraded from VMFS3.

No Storage devices greater than 2 TB for each VMFS extent Yes Yes Support for virtual machines with large capacity virtual disks, or disks greater than 2 TB Yes Yes Support of small files of 1 KB Yes Yes Default use of ATS-only locking mechanisms on storage devices that support ATS. See VMFS Locking Mechanisms. Yes Yes Block size Standard 1 MB Standard 1 MB Default snapshots VMFSsparse for virtual disks smaller than 2 TB.

SEsparse for virtual disks larger than 2 TB.

SEsparse Virtual disk emulation type 512n 512n vMotion Yes Yes Storage vMotion across different datastore types Yes Yes High Availability and Fault Tolerance Yes Yes DRS and Storage DRS Yes Yes RDM Yes Yes

When you work with VMFS datastores, consider the following:

Datastore Extents. A spanned VMFS datastore must use only homogeneous storage devices, either 512n, 512e, or 4Kn. The spanned datastore cannot extend over devices of different formats.

Block Size. The block size on a VMFS datastore defines the maximum file size and the amount of space a file occupies. VMFS5 and VMFS6 datastores support the block size of 1 MB.

Storage vMotion. Storage vMotion supports migration across VMFS, vSAN, and Virtual Volumes datastores. vCenter Server performs compatibility checks to validate Storage vMotion across different types of datastores.

Storage DRS. VMFS5 and VMFS6 can coexist in the same datastore cluster. However, all datastores in the cluster must use homogeneous storage devices. Do not mix devices of different formats within the same datastore cluster.

Device Partition Formats. Any new VMFS5 or VMFS6 datastore uses GUID partition table (GPT) to format the storage device. The GPT format enables you to create datastores larger than 2 TB. If your VMFS5 datastore has been previously upgraded from VMFS3, it continues to use the master boot record (MBR) partition format, which is characteristic for VMFS3. Conversion to GPT happens only after you expand the datastore to a size larger than 2 TB.

You can use VMFS 5 and VMFS 6 datastores in the same datastore cluster. However, all homogeneous storage devices in datastore cluster should use 512n or 512. These formats are directly related to VSAN. It is a very nice method to give datastore from 300GB to 10TB. You should not add devices of the same datastore cluster in different formats. It supports 1MB block size in VMFS 6, just like VMFS 5.

Thanks.