英语翻译In environments with a mix of operating systems——a commo

英语翻译
In environments with a mix of operating systems——a common condition that turns even simple consolidation into a messy affair—— one solution would be to host each OS in its own VM.For example,on a PC server running one of VMware’s virtualization solutions,you can run any combination of Windows 2003 Server,Windows 2000,Windows NT 4.0,various flavors of Linux,and FreeBSD.You can even use VMs to host different versions of the same OS.Linux software is infamous for dependence on specific versions and vendor distributions of Linux.Virtualization is the only way to run applications designed for Red Hat 7.2 and Suse 9.0 simultaneously on a single server.
Virtualization is magnificent stuff,but it doesn’t cure all ills.You can never create a virtual PC that outperforms the physical system underneath.You will learn much about your applications’ system requirements from moving them to a virtual environment.They’ll likely surprise you,either with how little of the original server they used——that’s the typical case——or how piggish they are.If necessary,you can throttle the nasty ones down.
And while one of the great benefits of virtualization is security——it’s hard to accomplish much by cracking a system that doesn’t exist——a virtualized PC can still be compromised.Fortunately,the cure is to overwrite the virtual PC’s disk image with one that’s known to be clean,but managing virtual servers still requires vigilance.
Ultimately,hardware consolidation is only one reason to opt for server virtualization,and it has wide appeal.Still,depending on each department’s unique needs,IT managers are sure to find innumerable ways that virtualization can benefit your enterprise.