There is an obvious concept in some system managers, advanced solutions such as SAN based on Fibre Channel are offered better characteristic. Or they may like the products based on iSCSI, because has offered the advantage like block level magnetic disc I/O. In addition, the products based on iSCSI step the Off-The-Shelf Ethernet connection based on cable and run, and does not need more expensive optic fibre framework, this is very attractive for controller.
So, where does this kind prove it is a good NAS apparatus through test? When newer technology is paid close attention to at most, the present NAS apparatus has offered a lot of new functions, include simplifying the virtual virtual machine supporting more quantity. How these advanced functions help the virtual focal point discussed by this text.
Virtual and NAS
Before describing a series of NAS advanced function, let’s look in order to support host computer server and virtual machine, use several kinds of methods of NAS apparatus. First and most obvious one in store the fictitious hard disk at the home server is stored at network share at first. Assume the network delay and bandwidth are OK, this kind of method can help consolidated storage and reduce and manage the expenses. When store and change on different magnetic discsing, a plurality of virtual machines share the identical basic minidisk to pay read-onlily and visit too.
NAS can be used for storing the virtual machine backup too to store, and it must be in the system such as ISO file to store any During share data. Like physics machine, you can be connected to NAS sharing the virtual machine. This is a useful method for often employing the organization that test or dispose extensively.
In addition, the organization considers using NAS apparatus to have other several reasons, such as Fig.:
Characteristic and expansibility
Because the identical magnetic disc resources of a large number of potential virtual machine competitions, while assessing and storing the solution, consider characteristic and expansibility are very important. Most NAS supports the extensive capacity to select. Add driving in order to increase characteristic and storage space newly without shutdown when needing. The great memory is buffered and can be asked to promote throughput prominently by the random diskette I/O that virtual machine produce as a lot of. The best way to increase magnetic disc I/O is to avoid using the magnetic disc. In more quick framework 10GB Ethernet On use network adapter not to get together and last expansibility a plurality of network link. The organization can be based on the calculation between their characteristic and cost and use different typological hard disks too. A lot of manufacturers support SAS, SATA and SCSI.
Tags: magnetic disc, virtual machine, network delay, memory technology, share data