Term
| Three considerations when reviewing the logical layout of the existing design? |
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Definition
1. Applications on servers / storage
2. Storage utilization
3. Data Backup / Restore |
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Term
| Five considerations when reviewing the existing physical design? |
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Definition
1. Distance btw servers and storage
2. Server bus architecture (PCI, PICE-X, SBUS, etc)
3. Capability of HBA (public or private loop, switch capable)
4. Number of servers and types
5. Understand cabling
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Term
| List two methods for gathering system performance? |
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Definition
1. Application Reports
2. Storage Management Software
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Term
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Definition
Mean Time Between Failure
Main Time To Repair
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Term
| List three sources and destinations of traffic? |
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Definition
traffic between
1. Server to Storage
2. Server to Server
3. Storage to Storage
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Term
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Definition
| Data in motion, moving from one place in a system to another |
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Term
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Definition
| Throughput and bandwidth (randon, steady, etc). |
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Term
| Describe the characteristics of data frequency. |
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Definition
total num of users
frequency of app and num of sessions
avg app session
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Term
| List three characteristics of large block transfers. |
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Definition
1. Can dominate a loop connection
2. Decreased I/Os but inc MB/s
3. Potential conflict with OLTP apps |
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Term
| List three characteristics of small block transfers. |
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Definition
1. Increased I/Os but decreased MB/s
2. Potentially less efficient framing
3. Disk array, JBOD, tape, backup, Digital Video Library |
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