https://community.hpe.com/t5/disk-enclosures/what-is-queue-length/m-p/3751693#M19799 Hello<BR /><BR />I have some problem to define the Queue Lenghts over 1, 5, 15 minutes .<BR />Someone can explain this concept to me?<BR /><BR />Luca Wed, 15 Mar 2006 10:03:44 GMT Luca Gabrielli 2006-03-15T10:03:44Z https://community.hpe.com/t5/disk-enclosures/what-is-queue-length/m-p/3751693#M19799 Hello<BR /><BR />I have some problem to define the Queue Lenghts over 1, 5, 15 minutes .<BR />Someone can explain this concept to me?<BR /><BR />Luca Wed, 15 Mar 2006 10:03:44 GMT https://community.hpe.com/t5/disk-enclosures/what-is-queue-length/m-p/3751693#M19799 Luca Gabrielli 2006-03-15T10:03:44Z https://community.hpe.com/t5/disk-enclosures/what-is-queue-length/m-p/3751694#M19800 Well, as you have written in the disk array forum, I guess you are talking about the Queue Length or Queue Depth of a SCSI disk.<BR /><BR />The SCSI protocoll allows an initiator (the server) to send multiple commands to a target (the disk or storage array) without waiting for completion of the first command. This allows the disk/array to optimize the data access by minimizing head moves.<BR /><BR />Of course, you can send only so many commands to a device, because handling many outstanding commands requires<BR />-- ressources on the server and<BR />-- the storage device Wed, 15 Mar 2006 10:30:50 GMT https://community.hpe.com/t5/disk-enclosures/what-is-queue-length/m-p/3751694#M19800 Uwe Zessin 2006-03-15T10:30:50Z