HP xw4400 Mini White Paper
Hardware versus software raid on linux workstations
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Hardware versus Software RAID on Linux Workstations
Mini-White Paper
Introduction......................................................................................................................................... 2
Comparison ........................................................................................................................................ 2
System Performance ......................................................................................................................... 2
Storage Performance ........................................................................................................................ 2
Management/Maintenance............................................................................................................... 2
Features .......................................................................................................................................... 2
Flexibility ........................................................................................................................................ 2
Migration........................................................................................................................................ 3
Availability...................................................................................................................................... 3
Simplicity ........................................................................................................................................ 3
Hardware Costs............................................................................................................................... 3
Administrative Costs ......................................................................................................................... 3
Supportability .................................................................................................................................. 3
Conclusion.......................................................................................................................................... 3
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Summary of Contents for HP xw4400
- Page 1 Hardware versus Software RAID on Linux Workstations Mini-White Paper Introduction... 2 Comparison ... 2 System Performance ... 2 Storage Performance ... 2 Management/Maintenance... 2 Features ... 2 Flexibility ... 2 Migration... 3 Availability... 3 Simplicity ... 3 Hardware Costs... 3 Administrative Costs ...
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Page 2: System Performance
Introduction This document will discuss a variety of factors to consider when choosing between hardware and software RAID configurations on Linux workstations. Comparison Hardware RAID versus software RAID in regards to a variety of considerations. System Performance • Hardware RAID may better balance system performance through asynchronous performance and offloading of processors, although there may be performance losses due to issues such as PCI resource conflicts. - Page 3 Migration • Hardware RAID level migration tends to be much simpler than in software RAID. Availability • Since hardware RAID requires specific hardware drivers, it is not always available on Linux workstations as a certain hardware manufacturer may not provide Linux support. •...
- Page 4 © 2006 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.