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HP Solid State Drives

Questions & Answers
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Solid state drives remove latency found in traditional hard drives by eliminating seek. They provide high performance data access and low power.

Product information

» Overview & Features
» Key benefits
» Questions & Answers

 

Questions

General
1. What are the option kits for SSD?
2. What servers are supported?
3. Is there a difference in the form factor of SSD and SFF/LFF SAS or SATA?
4. What is the power consumption?
5. How does cost of an SSD compare to SFF SAS or SFF SATA?
 
Industry Terms
1. What is NAND Flash Memory?
2. What is SLC?
 
Technology
1. What is the expected product endurance?
2. Since there are no moving parts is RAID still required?
 


 

Answers

General
Q1. What are the option kits for SSD
A2. 60GB SFF Kit SKU# 572071-B21, 60GB LFF Kit SKY#570761-B21, 120GB SFF Kit SKU# 572073-B21, 120GB LFF Kit SKU#570763-B21
 
Q2. What servers are supported?
A2. Any G5 or G6 ProLiant ML/DL/BL server that can accept SFF/LFF hot plug drives with a 15mm Z height.
  • These SSD's fit into existing server hot plug drive bays
  • With internal attached smart arrays (no external storage boxes)
  • Fits into existing SFF and LFF hot plug drive carriers
  • Not supporting non-hot plug drive bays
 
Q3. Is there a difference in the form factor of SSD and SFF/LFF SAS or SATA?
A3. The current product has the same X & Y dimensions as a SFF or LFF SAS or SATA drive
 
Q4. What is the power consumption?
A4. < 2 watts
  • SFF SAS drives are 9 watts
  • SFF SATA drives are 3.5 watts
 
Q5. How does cost of an SSD compare to SFF SAS or SFF SATA?
A5. There is a premium associated with SSD due to high performance, low latency, low power features:
  • Read performance is as much as 15X SAS and up to 50X SATA
  • Shifting paradigm from $/GB to $/IOPS
  • TCO plays a big part in the adoption of solid state
  • SSD works in extreme environments where traditional drives could not operate
 
Industry Terms
Q1. What is NAND Flash Memory?
A1. Non-volatile semiconductor memory that can be electronically erased and reprogrammed
    No power is needed to maintain data stored in the chip
  • Does not required an external power source to maintain data in the event of a power loss
  •  
    Q2. What is SLC?
    A2. Single level cell technology. A single bit of data can be stored in a memory cell of the device.
     
    Technology
    Q1. What is the expected product endurance?
    A1. Complex Firmware algorithms and over provisioning of capacity manage device endurance levels
    • Firmware manages writes to the component memory cells to ensure they are distributed among the cells and not concentrated in one area
     
    Q2. Since there are no moving parts is RAID still required?
    A2. Yes, even with increased reliability of SSD due to the absence of moving parts, preservation of data is still paramount. Eliminating any single point of failure by mirroroing or RAID is still recommended.
    • If your application cannot support a failure, fault tolerance is still recommended
     
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