최근 버젼의 firmware로 업그레이드를 해도 read/write ratio의 변경이 안되고

hpacucli에서 cache ratio의 변경이 안되는 것에 대해서

 

# hpacucli
HP Array Configuration Utility CLI 8.70-8.0
Detecting Controllers...Done.
Type "help" for a list of supported commands.
Type "exit" to close the console.

=> ctrl slot=1 modify cacheratio=50/50

Error: "cacheratio=50/50" is not a valid option for Smart Array P410 in Slot 1

   There are no options currently available.

 

원인은 배터리가 없어서. 그런데, FBWC라서... 배터리는 큰 의미가없는데...

 

# hpacucli ctrl slot=1 show

Smart Array P410 in Slot 1
   Bus Interface: PCI
   Slot: 1
   Serial Number: PACCR0L9VYU1QO4
   Cache Serial Number: PBCDF0BRHYI0A5
   RAID 6 (ADG) Status: Disabled
   Controller Status: OK
   Hardware Revision: Rev C
   Firmware Version: 6.00-2
   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
   Accelerator Ratio: 100% Read / 0% Write
   Drive Write Cache: Disabled
   Total Cache Size: 1024 MB
   No-Battery Write Cache: Disabled
   Battery/Capacitor Count: 0
   SATA NCQ Supported: True

 

먼저 No-Battery Write Cache를 Enable하고, 다음에 ratio를 바꿔야 합니다.

 

# hpacucli
HP Array Configuration Utility CLI 8.70-8.0
Detecting Controllers...Done.
Type "help" for a list of supported commands.
Type "exit" to close the console.

=> controller slot=1 modify nobatterywritecache=enable
=> controller slot=1 modify cacheratio=25/75
=> controller slot=1 modify cacheratio=75/25 (read 75%/write 25%. 1G FBWC라서...)