https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322463#M12762 I got a problem when I study the queue length of RAID system. When I used a RAID to simulate a RAID 5 system (with 4 disks), I found the average queue length of the logical driver (RAID driver) was 2.8, the maximum queue length was 614 and the maximum queue time was 4264 ms.<BR /><BR />Are they reasonable in real world systems?<BR />How people solve the burstiness problem?<BR /><BR />Thanks<BR /><BR />Dong Sun, 04 Jul 2004 11:51:54 GMT Dong Li 2004-07-04T11:51:54Z https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322463#M12762 I got a problem when I study the queue length of RAID system. When I used a RAID to simulate a RAID 5 system (with 4 disks), I found the average queue length of the logical driver (RAID driver) was 2.8, the maximum queue length was 614 and the maximum queue time was 4264 ms.<BR /><BR />Are they reasonable in real world systems?<BR />How people solve the burstiness problem?<BR /><BR />Thanks<BR /><BR />Dong Sun, 04 Jul 2004 11:51:54 GMT https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322463#M12762 Dong Li 2004-07-04T11:51:54Z https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322464#M12763 Above 2 for average length is not good, increase writeback cache, increase the number of spindles (*2 if possible). Maximum queue time of 4 seconds ... It would be quicker using paper. Thu, 08 Jul 2004 04:15:09 GMT https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322464#M12763 RBaker 2004-07-08T04:15:09Z https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322465#M12764 What hardware do you have for system and the disk array? What operating system release?<BR />The default scsi queue depth in HP-UX is 8, but the maximum is 256. Fri, 09 Jul 2004 17:12:02 GMT https://community.hpe.com/t5/disk-enclosures/about-the-queue-length/m-p/3322465#M12764 Ted Buis 2004-07-09T17:12:02Z