RAID: Har noen prøvd disse innstillingene?

[Nismo]

http://home.tiscali.no/geikjo/bilder/raid

 

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Lian-Li PC60USB (vifter byttet til Papst 12db)

Enermax 431W

ASUS A7V333 RAID

XP1900 m/Alpha 8045 & Papst 19db

256 PC2700

2 X 120 WD 8MB Cache i RAID Striping

Pioneer DVD116

Ricoh CDRW

Geforce3 (m/Zalman) - Hansol H530s LCD

 

[ Denne Melding var redigert av: Nismo på 2002-06-03 13:57 ]

[BBC]

Har ikke prøvd det, men her er forklaringen;

 

http://makeashorterlink.com/?H10F2379

 

"The SCSI Properties Tab "Disable Tagged Queuing" Feature

 

Tagged queuing is done by the SCSI controller and driver to increase the speed of completing I/O tasks. This is accomplished by sorting the commands so the order of the commands issued to the physical disk drive to read or write results in the most efficient movement of the physical read and write heads. Since moving the physical heads takes time, by intelligently moving them in a sequential order rather than in random order, seek times are minimized, resulting in greater I/O performance."

 

 

"The SCSI Properties Tab "Disable Synchronous Transfers" Feature

 

There are two methods of transferring data over SCSI cables, Synchronous mode and Asynchronous mode. Asynchronous mode transfers use an interlocked handshake method where a device (adapter or drive) cannot do the next data transfer operation until it receives positive acknowledgment that the other device received the last data transfer properly. Synchronous transfer mode permits the sending device to send multiple data packets without receiving acknowledgment that the receiver actually received every data packet sent. By doing to, more data can be sent or received before an acknowledgement is required. Disabling either Tagged Queuing or Synchronous transfers results in performance degradation. However, if you suspect a device is having trouble with overlapped requests (queuing) or getting data reliably and quickly (synchronously), you can attempt to use a slower but more reliable mode of operation."