In this chapter, you learned the basic concepts behind backup and restore, which are two crucial elements of a high availability and data protection strategy. Solaris provides a number of tools, such as ufsdump and ufsrestore, to implement these tasks . Alternatively, a third-party package may be used to increase functionality.
1. | What is a full dump?
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2. | What is an incremental dump?
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3. | What media can be used for a backup?
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4. | What is a RAID level 0?
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5. | What is a RAID level 1?
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6. | What command would be used to extract a tar file called backup.tar using verbose output?
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7. | What does cpio 'copy in' mode do?
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8. | What does dd do?
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Answers
1. | A. A full dump makes a copy of everything on a specified file system. |
2. | D. An incremental dump saves time by only backing up modified files. |
3. | A. Anything that stores data can be used for backups . |
4. | B. Striping logically extends the space available on disk volumes . |
5. | A. Mirroring ensures data integrity by copying blocks concurrently to multiple disks. |
6. | B. xvf means e(x) tract , (v)erbose, (f)ile. |
7. | D. 'copy in' literally means what it says. |
8. | C. dd can be used to copy slices as if they were files. |