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RAM-DISK SCSI Device Properties
Posted: Sat Jun 13, 2009 1:57 pm
by PARK98248
Any recomendations?
Optimize for quick removal ?
Disable tagged queuing ?
Disable synchronous transfers ?
Re: RAM-DISK SCSI Device Properties
Posted: Sun Jun 14, 2009 10:20 am
by Support
Great question! You are the first one to ask about this.
Yes, you may select "Optimize for quick removal". It disables write caching. Write caching is not necessary here since the read/write is actually on RAM.
You may also select "Disable tagged queuing". Tagged queuing is not enabled internally on our ramdisks. Because our ramdisks have the same performance btw sequentially and randomly access, it is not necessary to support tagged queuing.
You may not select "Disable synchronous transfers". Synchronous transfers mode permits the sending device to send multiple data packets without receiving acknowledgment that the receiver actually received every data packet sent. Disabling synchronous transfers may result in performance degradation a little.
However these settings are not very critical factors affecting the performance. You may test these setting using tools mentioned on our website.
If you require higher performance, you may try DirectIO ramdisk instead of SCSI ramdisk. DirectIO ramdisk is available on the Professional Edition.