老實說我蠻想知道為何非企業及不能組(雖然我都買企業級的....)
0+0我估計應該有400MB吧
Western Digital manufactures desktop edition hard drives and RAID Edition hard drives. Each type of hard drive is designed to work specifically as a stand-alone drive, or in a multi-drive RAID environment.
If you install and use a desktop edition hard drive connected to a RAID controller, the drive may not work correctly. This is caused by the normal error recovery procedure that a desktop edition hard drive uses.
Note: There are a few cases where the manufacturer of the RAID controller have designed their cards to work with specific model Desktop drives. If this is the case you would need to contact the manufacturer of that controller for any support on that drive while it is used in a RAID environment.
When an error is found on a desktop edition hard drive, the drive will enter into a deep recovery cycle to attempt to repair the error, recover the data from the problematic area, and then reallocate a dedicated area to replace the problematic area. This process can take up to 2 minutes depending on the severity of the issue. Most RAID controllers allow a very short amount of time for a hard drive to recover from an error. If a hard drive takes too long to complete this process, the drive will be dropped from the RAID array. Most RAID controllers allow from 7 to 15 seconds for error recovery before dropping a hard drive from an array. Western Digital does not recommend installing desktop edition hard drives in an enterprise environment (on a RAID controller).
Western Digital RAID edition hard drives have a feature called TLER (Time Limited Error Recovery) which stops the hard drive from entering into a deep recovery cycle. The hard drive will only spend 7 seconds to attempt to recover. This means that the hard drive will not be dropped from a RAID array. While TLER is designed for RAID environments, a drive with TLER enabled will work with no performance decrease when used in non-RAID environments.
我之前用wd1001fals x4 raid0
MB : evga p55 e659
CPU : i7 860
RAM : G.Skill 2200@2000 8g
實測讀寫大約平均都在450MB/s 左右
檔案多了之後, 大概就是420MB/s 左右
現在硬碟裝到HP Microserver, 沒辦法實測數據囉
不會
開機跟小檔讀取速度有關
開啓檔案要看檔案大小
總之都是ssd勝出, 我是用G2 120G & 320 120G raid做比較
