Netgear RNDP6350-200 – ReadyNAS® Pro 6, 1.5TB Unified Storage System Software Guide

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Optimization and Maintenance
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ReadyNAS for Business RAIDiator 4.2.17 
Performance
Select System > Performance from the main menu to configure system preferences. 
Note:  
Some settings suggest that you utilize an uninterruptible power 
107.
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Select Enable disk write cache to allow disk write requests to be acknowledged by 
the disk before data is written out to the platter. This can give a big boost to write 
performance, with the drawback that there is a slight chance that unwritten data in the 
write cache will be lost in the event of a power failure.
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The Disable full data journaling improves disk performance at the expense of data 
protection. Full data journaling makes a backup of data before writing the data out to 
the intended location, which provides the extra level of data protection needed to 
prevent data corruption for RAID volumes at the expense of disk write performance. 
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The Optimize for OS X option provides the best performance in Mac OS X 
environments when connected to the ReadyNAS through the SMB/CIFS protocol. 
This option, however, introduces compatibility issues with Windows NT 4.0; do not 
enable this option if this device will be accessed by Windows NT 4.0 clients. 
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The Enable fast CIFS writes option speeds write performance by enabling aggressive 
write-back caching over CIFS. Do not enable this option in multi-user application 
environments, such as Quick Books where synchronized writes are necessary to 
keep files in sync.
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The Enable fast USB disk writes option speeds up USB write access by accessing 
the USB device in asynchronous mode. If you enable this option, do not remove the 
USB device without correctly unmounting it. Failure to do so can compromise data 
integrity on the device.