P410 controller config 을 자세히 보니,

 

P410 512MB cache 장착되어 있는데 실제 cache에 사용하는건 400MB 밖에 안되네요?

100MB 이상을 타용도로 쓴다는 것인데, 그럼 256MB cache인 경우 사용가능한 캐쉬는 겨우 100~150MB 정도 밖에 안된다는 것인데 맞는 건가요?

 

   Bus Interface: PCI
   Slot: 1
   Serial Number: XXXX
   Cache Serial Number: XXX
   RAID 6 (ADG) Status: Disabled
   Controller Status: OK
   Hardware Revision: C
   Firmware Version: 5.70
   Rebuild Priority: Medium
   Expand Priority: Medium
   Surface Scan Delay: 15 secs
   Surface Scan Mode: Idle
   Queue Depth: Automatic
   Monitor and Performance Delay: 60  min
   Elevator Sort: Enabled
   Degraded Performance Optimization: Disabled
   Inconsistency Repair Policy: Disabled
   Wait for Cache Room: Disabled
   Surface Analysis Inconsistency Notification: Disabled
   Post Prompt Timeout: 0 secs
   Cache Board Present: True
   Cache Status: OK
   Cache Ratio: 25% Read / 75% Write
   Drive Write Cache: Disabled
   Total Cache Size: 512 MB
   Total Cache Memory Available: 400 MB
   No-Battery Write Cache: Disabled
   Cache Backup Power Source: Batteries
   Battery/Capacitor Count: 1
   Battery/Capacitor Status: OK
   SATA NCQ Supported: True