In general, you should avoid IDE unless it is the only controller supported by your guest. Whether you use SATA, SCSI, or SAS does not make any real difference. The variety of controllers is only supplied by Oracle VM VirtualBox for compatibility with existing hardware and other hypervisors. The virtual USB storage controller offered by Oracle VM VirtualBox works differently to the other storage controller types. While most storage controllers appear as a single PCI device to the guest with multiple disks attached to it, the USB-based storage controller does not appear as virtual storage controller.
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This is the most common method, described in Section 5.2, “Disk Image Files ”. Given this large choice of storage controllers, you may not know which one to choose.
While keeping the current IDE hard drive in place, install the SATA drive by connecting it to the SATA controller using an appropriate SATA cable and by attaching a power connector to the drive. Please refer to your hard drive, controller card, and/or mainboard manufacturers’ documentation for more information. ■A 120GB SATA Maxtor drive installed on the ICH6R in SATA/AHCI mode, holding the Windows 2000 Server installation.
Once Windows is started up and Nvidia driver reached the desktop, the Found New Hardware wizard should start, indicating that the system wants to install drivers for the ICH7R in RAID mode. Windows will now start up on the Promise SATA300 TX2plus disk controller & 120GB SATA hard drive. Since the old connection to the ICH7R was SATA, and the Promise card also supports a single SATA drive, we don’t need another hard drive, nor do we need to copy the partition. Simply unplug the 120GB SATA drive from the ICH7R and reconnect it to the Promise SATA300 TX2plus. Make sure in the boot order, that the ICH7R disk controller and 120GB SATA drive are still set to be the boot device.
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- Companies in the group included AMD, Dell, Marvell, Maxtor, Microsoft, Red Hat, Seagate and StorageGear.
- To regain your drive’s full capacity, you’ll need to run Windows’ "clean" command, which will return the drive to a completely unformatted state.
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- The specification was developed by the AHCI Contributor Group, which was comprised of hardware, software and OEM vendors, and was chaired by Intel.
So, for a 10 GB disk, you will have a 10 GB file. Note that the creation of a fixed-size image can take a long time depending on the size of the image and the write performance of your hard disk. Like a physical disk, a virtual disk has a size, or capacity, which must be specified when the image file is created.
As opposed to a physical disk however, Oracle VM VirtualBox enables you to expand an image file after creation, even if it has data already. So Windows will not see such disks unless you install additional drivers. Oracle VM VirtualBox can use large image files on a real hard disk and present them to a guest as a virtual hard disk.
In Windows, this can be done by checking Device Manager. SATA controllers typically appear under the SCSI and RAID controllers or Storage controller sections of Device Manager, while hard drives can be found under the Disk drives section.
Each disk attached to the controller appears as a dedicated USB device to the guest. So Windows XP, even SP3, will not see such disks unless you install additional drivers. Like a real SATA controller, Oracle VM VirtualBox’s virtual SATA controller operates faster and also consumes fewer CPU resources than the virtual IDE controller. Also, this enables you to connect up to 30 virtual hard disks to one machine instead of just three, when compared to the Oracle VM VirtualBox IDE controller with a DVD drive attached. Ensure that the SATA controller and the attached SATA hard drive are correctly detected by the operating system.