The Practice of System and Network Administration Second Edition phần 6 doc

The Practice of System and Network Administration Second Edition phần 6 doc

The Practice of System and Network Administration Second Edition phần 6 doc

... when the cost model showed the systems to cost about the same per gigabyte of usable storage, the dedicated file servers had an advantage over the old systems: consistency and support. The old systems ... mishmash of various manufacturers for the host; for the RAID controllers; and for the disk drives, cables, network interfaces, and, in some cases, even the rac...
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The Practice of System and Network Administration Second Edition phần 1 docx

The Practice of System and Network Administration Second Edition phần 1 docx

... 66 1 27.2 The Icing 66 2 27.2.1 Home Office 66 2 27.2.2 Cost Analysis and Reduction 66 3 27.2.3 New Technologies 66 4 27.3 Conclusion 66 5 28 Software Depot Service 66 7 28.1 The Basics 66 9 28.1.1 Understand ... Conclusion 1 26 6 Data Centers 129 6. 1 The Basics 130 6. 1.1 Location 131 6. 1.2 Access 134 6. 1.3 Security 134 6. 1.4 Power and Cooling 1 36 6.1.5 Fire Sup...
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The Practice of System and Network Administration Second Edition phần 2 doc

The Practice of System and Network Administration Second Edition phần 2 doc

... vendor and the release of the compatible new version from the second vendor. Also, relations between the two vendors may break down, and they may stop providing the interface between the two ... both products and rely on the interface between them. ❖ The Protocol versus the Product SAs need to understand the differ- ence between the protocol and the product...
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The Practice of System and Network Administration Second Edition phần 3 docx

The Practice of System and Network Administration Second Edition phần 3 docx

... simplicity on the physical layer. You can build a very simple and therefore stable—flat physical network and then construct overlay networks on top of the solid base to give the ap- pearance of the more ... the machines and lighting in the data center, the HVAC system, the UPS charging, the phone switches, the SA work area, and the customer service center....
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The Practice of System and Network Administration Second Edition phần 4 docx

The Practice of System and Network Administration Second Edition phần 4 docx

... let them make the decision without having to understand the technology, and they were able to break the tie where the SAs disagreed. By the time the hardware was ready, the grid was complete. The ... availability of and access to the manufacturing control systems was of the utmost importance. A large networking hardware and software company, the crown jewels we...
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The Practice of System and Network Administration Second Edition phần 5 pps

The Practice of System and Network Administration Second Edition phần 5 pps

... whether the change should go ahead regardless of ‘ the weather’’ or wait until there is ‘‘good weather’’: the operating status of the service. In other words, some changes are approved on the ... schedule, rather than the other way around. When his customer made a mistake, Tom was blamed because some of the group’s systems depended on the customer’s systems. The custome...
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The Practice of System and Network Administration Second Edition phần 7 potx

The Practice of System and Network Administration Second Edition phần 7 potx

... 0.52 6 4.00 0. 56 0. 56 0. 56 0. 56 0. 56 7 4.00 0 .60 0 .60 0 .60 0 .60 0 .60 8 4.00 4.00 0 .64 0 .64 0 .64 0 .64 9 4.00 0.40 0 .68 0 .68 0 .68 0 .68 10 4.00 0.44 0.72 0.72 0.72 0.72 11 4.00 0.48 0. 76 0. 76 0. 76 ... deleted the data, the direct users of the data. Archival backups serve the needs of the legal and financial departments that require them, people w...
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The Practice of System and Network Administration Second Edition phần 8 ppt

The Practice of System and Network Administration Second Edition phần 8 ppt

... the processing, leaving the CPU less loaded and better able to do the remaining work of moving the data off the disk, through the card, and onto the network. ❖ LAMP and Other Industry Terms Certain ... centralized and decentral- ized models for the system administration organization has an impact on customer support and the relationships between the SAs...
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The Practice of System and Network Administration Second Edition phần 9 pps

The Practice of System and Network Administration Second Edition phần 9 pps

... isolated, unimportant, and not part of the team. The longer people stay with the group and the less turnover there is, the more they will feel part of the team and the more likely they are to stick with ... servers, printers, other people’s PCs, and the like. This has the same effect as if someone walked up to another person’s PC when no one was around and pull...
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The Practice of System and Network Administration Second Edition phần 10 pdf

The Practice of System and Network Administration Second Edition phần 10 pdf

... existing systems and improving them, scaling large systems into hu- mongous systems, and overhauling legacy systems and replacing them with newer systems. Infrastructure Builders are proud of their ... Administrators. O’Reilly. Limoncelli, T. A., and C. Hogan. 2001. The Practice of System and Network Administration. Addison-Wesley. 910 Epilogue the lessons and valu...
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