GigaRAID/FT Model 1000 Cache & Battery Backup Units

ANDATACO's Fast-Write Mirrored Cache provides low disk response times during write operations, especially to RAID 5 disk groups. Un-cached RAID 5 writes require four I/O operations (read old data, read old parity, write new data, and write new parity). The resulting response time for a single write operation averages about 60 ms. The maximum throughput is less than 300 writes/sec because of disk bottlenecks. By intercepting the write request and storing it in mirrored memory, ANDATACO enables writes to be performed in as little as 4.6 ms and a maximum throughput of over 700 writes/sec. Many different kinds of applications will benefit from cached writes, especially transaction-based systems, where fast-write response times are required under high load conditions.


GFT-Cache-8
GigaRAID 8.0MB Cache (Two 4.0MB Memory Cards). ___________________________________________________________________
GFT-Cache-16
GigaRAID 16MB Cache (Four 4.0MB Memory Cards). ___________________________________________________________________
GFT-MCache-8
GigaRAID 8.0MB Useable Mirrored Cache (Four 4.0MB Memory Cards - Two per SP). ___________________________________________________________________
GFT-MCache-16
GigaRAID 16MB Useable Mirrored Cache (Eight 4.0MB Memory Cards - Four per SP). ___________________________________________________________________
GFT1-BBU
Model 1300 Battery Unit - Used when Upgrading Model 1100 to Model 1300. ___________________________________________________________________
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