Справочник Пользователя для Promise Technology 66 Pro

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SuperTrak66™ User's Manual 
Chapter 5 
 
- 99 - 
The fields displayed on the previous page are defined as follows: 
 
Name 
This field contains the name of the array. 
 
 
RAID Level 
The “RAID level” text box contains the RAID level information of the array. 
Pressing on the arrow along on the right edge of the text box (operational 
only when creating a new array) displays a list of choices (RAID levels 0, 1, 
3, 5, or spanning). 
 
Block Size (KB) 
The “Block size” reflects the stripe block size information used by this 
array. This value cannot be modified here. 
 
Cache Policy Settings 
The “Cache policy settings” section contains several fields related to the 
caching mode of the array as follows: 
 
 
Read cache 
This field shows the current read cache setting. The options are 
“ON” and ”Cache OFF.” “OFF” disables the entire caching 
system, including write caching.  
 
 
Write cache 
This is the write cache mode. Pressing on the arrow on the right 
edge of the text box displays a list of choices: “Off” (turns off 
write and write back caching); “write back” (enables the write and 
write back caching). 
 
NOTE: Flush parameters of write  and write back caching are set 
in the IOPX Information View; see p.  84 for more information. 
Read Ahead mode and Range settings are not available in this 
version.
 
 
Cache statistics   
The cache stat istics are displayed, but cannot be modified from here.  
 
 
Read cache hit 
This field shows the number of read cache requests made to this 
particular array since the field was last reset. 
 
 
Write cache hit 
This field shows the number of write cache requests  made to this 
particular array since the field was last reset.