disaster recovery

How do you install and use rsync to synchronize files and directories from one location (or one server) to another location? – A common question asked by new sys admin.

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Network attached storage (NAS) allows using TCP/IP network to backup files. This enables multiple servers in IDC to share the same storage for backup at once, which minimizes overhead by centrally managing hard disks. NAS is scalable, high performance network solution. The main advantage is more hard disk storage space added to a network that […]

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dd_rescue (also known as ddrescue) is a program that copies data from one file or block device to another, it is a tool to help you to save data from crashed partition. It tries to read and if it fails it will go on with the next sectors, where tools like dd will fail. If […]

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