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You can specify the SCSI controller type and you can set the type of SCSI bus sharing for a virtual machine.Īlso, you can connect a virtual disk to another controller or another controller type. Note that virtual machines with EFI boot mode are not affected.
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Note that adding different types of storage controllers to a virtual machine that uses BIOS boot mode can cause operating system boot issues. The type of controllers does not only depend by the virtual hardware and the guest OS, but also on how the virtual machine boot mode is configured. If you add a hard disk, SCSI, or CD/DVD-ROM device to a virtual machine after virtual machine creation, the device is assigned to the first available virtual device node on the default controller, for example (0:1) in the case that you only have one OS virtual disk. When you add storage controllers, they are numbered sequentially 1, 2, and 3. When you create a virtual machine, the first hard disk is assigned to the default controller 0 at bus node (0:0). The default controller is number 0, for each type of controller. Use of more storage controllers has the advantages to handle different queue for the I/O request and could be useful for specific virtual disks or virtual machines that require more performance (maybe using PVSCI or NVMe controllers).Įach virtual machine can have a maximum of two IDE controllers, four SCSI controllers, four SATA controllers, and four NVMe controllers. Most of them are SCSI (or SAS) based including BusLogic Parallel, LSI Logic Parallel, LSI Logic SAS, and VMware Paravirtual SCSI.īut there are available also AHCI, SATA, and NVMe based controllers with different purposes and different usage. Storage controllers appear to a virtual machine as different types of block-based controllers. Then, after virtual machine creation, you can add additional controllers (in some cases you can also hot-add) or change the controller type (only cold operation). You can make several change changes while you are in the creation wizard. To access block-based devices (like virtual disks, CD/DVD-ROM), but also generic SCSI devices, a virtual machine uses storage controllers, which at least one is added by default when you create the virtual machine and the type of it depends by the type of guest OS that you have chosen. StarWind Virtual Tape Library (VTL) OEM.
#Esxi 6.5 raid controller compatibility software#
Software as a Service (SaaS) & Financing.StarWind Virtual Tape Library Appliance (VTLA).