queue depth help!!
Hello,
if the scsi target queue depth is 1, does it mean that i can handle only one outstanding command at a time.
Does it mean if another command is issued( queue depth=1), it has to wait till the previous command is done.
Thanks
Jay
Quoted 2 lines · jshankar
if the scsi target queue depth is 1, does it mean that i can handle only one outstanding command at a time.
Yes
Quoted 2 lines
Does it mean if another command is issued( queue depth=1), it has to wait till the previous command is done.
Yes.
The mid-layer will start the queued command as soon as the one occupying the device returns...this is often why untagged devices actually set their depth to 2 so they can have another command all prepared and ready to roll as soon as the in-progress one returns.
James