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273913-B21 HP 256MB BBWC for SA6400 / P600   HP Compaq  
273913-B21 HP 256MB BBWC for SA6400 / P600          Price: $113.05        

Description:
256MB Battery Backed Write Cache Upgrade
for Smart Array 6400 Series and P600
Option Part# 273913-B21
Overview:
The process of transferring data to and from disk storage includes storing the data temporarily in cache memory located on the RAID array controller that is managing the data transfer. Write cache can improve the performance of any RAID level by combining two or more adjacent write requests into a single request for a disk drive. Once a data write is completed the cache must be able to protect this data in the event of a power loss before the write data is moved to the drives. If external power to the system is interrupted if the host computer fails or if the RAID controller fails battery power maintains data in the cache long enough for the user to recover the data and preserve the integrity of business-critical information. Depending on the capacity of the batteries when external power is lost battery-backed cache is typically capable of retaining the integrity of data in the cache for several days.

Specifications: 
CategoryProliant Option
Sub-CategorySmart Array
GenerationBattery Cache
Part Number273913-B21
Products ID15212
TypeDRAM
Capacity256 KB
Product info for 273913-B21
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 Mfg. Part: 273913-B21
 Products ID: 15212
 Quantity: 237 In Stock
 Usually Ships: Same Day
  Price: $113.05
 Category :   Proliant Option   Part# :   273913-B21  Warranty :   3 Year 
 Sub Category :   Smart Array   Ships :   Same Day  Packaging :   Sealed Static Bag 
 Generation :   Battery Cache   Inventory :   237 In Stock Weight :   1.00 lbs
 Date Added :   20041021   Condition :   New   Products ID :   15212 
   273913-B21 HP 256MB BBWC for SA6400 / P600   Your Price:  $113.05  
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