Справочник Пользователя для Promise Technology 66 Pro

SuperTrak66™ User's Manual 

Chapter 5 

 

- 96 - 

Depending on the application or server operation in which the SuperTrak66 is used, 
admin/users may elect to turn on the read cache feature of the SuperTrak66 
controller for performance purposes or disable caching entirely. Presence or 
absence of read cache may have a dramatic effect. Consult Chapter 6 RAID 
Management for more details. 
 
1)  To turn on read cache from SuperCheck, double-click the Array icon in Tree 

View. 

2)  In the Information View, left-click the arrow next to the Read Cache selection 

box and choose "On" (see p. 98). 

1)  To turn off all caching from SuperCheck, double-click the Array icon in Tree 

View. 

2)  In the Information View, left-click the arrow next to the Read Cache selection 

box and choose "Cache Off". This will disable all caching functions from 
SuperTrak66 (see p. 98). 

Write-back cache affects system perf ormance depending on server and application 
type. However, write-back cache data will be lost in the event of a system power 
outage or other event where the data has not yet been saved to disk. Turning off 
write-back caching will force SuperTrak66 to immediately save all writes to the drive.  
 
1)  To turn on/off write back caching from SuperCheck, double-click the Array icon 

in Tree View. 

2)  In the Information View, make sure Read Cache is turned "On". 

3)  Left-click the arrow next to the Write Cache selection box and  choose "Write 

Back". This will enable "write" and "write back" caching functions from 
SuperTrak66 (see p. 98).