James, > There has been a desire to set the lun queue depth on all luns on an > shost. Today that is done by an external script looping through > discovered sdevs and set an sdev attribute. The desire is to have a > single shost attribute that performs this work removing the > requirement for scripting. I'd like you to elaborate a bit on this. - Why is scripting or adding a udev rule inadequate? - Why is there a requirement to statically clamp the queue depth instead of letting the device manage it? -- Martin K. Petersen Oracle Linux Engineering