disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 5.7 Disk images and I/O caching . . . . . . . . . . . . . . . . . . . . . . . . 96 5.8 CD/DVD drive operation . . . . . . . . . image can be determined with hdparm -i /dev/sda 5.7 Disk images and I/O caching VirtualBox can optionally disable the I/O caching that the host operating system would otherwise perform on disk image files Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 5.8 Limiting bandwidth can be determined with hdparm -i /dev/sda 5.7 Host I/O caching Starting with version 3.2, VirtualBox can optionally disable the I/O caching that the host operat- ing system would otherwise perform on Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 5.8 Limiting bandwidth Certificate” • In tab “Details” click on “Copy to File ...“ • In the upcoming wizard choose “DER encoded binary X.509 (.CER)“ and save the certificate file to a local path, finish the wizard • Close certificate Certificate” • In tab “Details” click on “Copy to File ...“ • In the upcoming wizard choose “DER encoded binary X.509 (.CER)“ and save the certificate file to a local path, finish the wizard • Close certificate

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 5.8 Limiting bandwidth Certificate” • In tab “Details” click on “Copy to File ...“ • In the upcoming wizard choose “DER encoded binary X.509 (.CER)“ and save the certificate file to a local path, finish the wizard • Close certificate Certificate” • In tab “Details” click on “Copy to File ...“ • In the upcoming wizard choose “DER encoded binary X.509 (.CER)“ and save the certificate file to a local path, finish the wizard • Close certificate

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.8 Limiting bandwidth hdparm -i /dev/sda 79 5 Virtual storage 5.7 Host I/O caching Starting with version 3.2, VirtualBox can optionally disable the I/O caching that the host operat- ing system would otherwise perform on Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.8 Limiting bandwidth hdparm -i /dev/sda 79 5 Virtual storage 5.7 Host I/O caching Starting with version 3.2, VirtualBox can optionally disable the I/O caching that the host operat- ing system would otherwise perform on Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.8 Limiting bandwidth hdparm -i /dev/sda 79 5 Virtual storage 5.7 Host I/O caching Starting with version 3.2, VirtualBox can optionally disable the I/O caching that the host operat- ing system would otherwise perform on Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 5.8 Limiting bandwidth hdparm -i /dev/sda 80 5 Virtual storage 5.7 Host I/O caching Starting with version 3.2, VirtualBox can optionally disable the I/O caching that the host operat- ing system would otherwise perform on Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 5.8 Limiting bandwidth hdparm -i /dev/sda 79 5 Virtual storage 5.7 Host I/O caching Starting with version 3.2, VirtualBox can optionally disable the I/O caching that the host operat- ing system would otherwise perform on Also, when you start a VM a second time and have enough memory available for the OS to use for caching, large parts of the virtual disk may be in system memory, and the VM can access the data much faster

disk images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 5.7 Host I/O caching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 5.8 Limiting bandwidth Certificate” • In tab “Details” click on “Copy to File ...“ • In the upcoming wizard choose “DER encoded binary X.509 (.CER)“ and save the certificate file to a local path, finish the wizard • Close certificate Certificate” • In tab “Details” click on “Copy to File ...“ • In the upcoming wizard choose “DER encoded binary X.509 (.CER)“ and save the certificate file to a local path, finish the wizard • Close certificate