Shulou(Shulou.com)06/02 Report--

As the saying goes, "it is easy to learn, but difficult to do". How to build a small cloud computing platform? It is estimated that many people have no idea what to do, so here is an example of cloud computing implementation of a small solution.

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If you need to meet less than 60 end users (office, teaching, multimedia reading, door and cabinet business, family, etc.), allow moderate unavailability, and require the high security of a number of employees (such as financial personnel, bosses), so how to implement it?

The stand-alone solution has the advantages of simple structure, low cost, easy construction, operation and maintenance, and is suitable for situations that do not require high availability, such as teaching, home, small company office, etc., while dual computers can ensure high availability, but the architecture is slightly more complicated. the cost increase is not much. With Windows's remote desktop service, each user can only see the information in his or her home directory. For users who require a high degree of data security, they should be assigned virtual machines or containers to achieve complete isolation from others.

First of all, install the operating system, application programs and static configuration files with a solid state disk of 120GB, and turn on write protection after it is put into operation, so as to maximize the protection of the system. Viruses, power outages, and accidental deletion of files will not destroy the system, so as to ensure that the machine can always run normally.

Secondly, two solid state disks of 250GB are used to make RAID1 (set by hard array card or soft array). The effective storage capacity is 250GB, and then it is made into a storage pool with 2TB's mechanical hard disk. This storage pool is used to store virtual memory page files and documents frequently used by users, and the directories C:\ Users and C:\ Temp on C: disk are linked here. This storage pool has the capacity of 2250GB and is close to the performance of SSD.

Both the storage pool management of Windows Server 2012 R2 and the ZFS file system can optimize the mashup environment of SSD and HDD, so that frequently used files are stored in SSD and rarely accessed files are stored in HDD, which are done automatically without manual user intervention.

According to the calculation of 60 users, each user can allocate close to 40GB's hard disk space, which is sufficient for the data generated by the daily office. Because overallocation is allowed, almost every user can get 80GB space. Enable disk quota limits for users.

Finally, a NAS storage device with a capacity of more than 4TB is used for offline backup, or synchronous backup can be considered. Schedule a background backup task and set an incremental backup every 30 minutes. Two gigabit network cards are bundled together, so that the network traffic is shared equally between the two network cards, even if one network card is damaged, the user session will not be interrupted. Configure 32GB memory, at least one 4-core CPU. This scheme also supports a small number of virtual machine desktops (less than 4), and each virtual machine needs to allocate 1.5GB memory.

For companies with a slightly loose budget, you can consider adding a 2TB mechanical hard disk and two as mirrors to increase storage fault tolerance; on the contrary, enterprises with tight budgets can consider buying only one 250GB solid state disk and backing up data in time to increase data security.

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