Infortrend RAID Controller Manual

cursor bar to an item, then press [ENTER]. Choose Yes in the dialog
box that follows to confirm the setting. The default setting is 4.
Number of Tags Reserved for each Host-LUN
Connection:
Each "nexus" has "32" (the default setting) tags reserved. When the
host computer is sending 8 of I/O tags to the controller, and the
controller is too busy to process all, the host might start to send less
than 8 tags during every certain period of time since then. This setting
ensures that the controller will accept at least 32 tags per nexus. The
controller will be able to accept more than that as long as the
controller internal resources allow - if the controller does not have
enough internal resources, at least 32 tags can be accepted per nexus.
Choose “Host-side SCSI Parameters,” then press [ENTER]. Choose
“Number of Tags Reserved for each Host-LUN Connection,” then
press [ENTER]. A list of available selections will appear. Move the
cursor bar to an item, then press [ENTER]. Choose Yes in the dialog
box that follows to confirm the setting.
Maximum Queued I/O Count:
This function allows you to configure the maximum number of I/O
queue the controller can accept from the host computer.
Choose “Host-side SCSI Parameters,” then press [ENTER]. Choose
“Maximum Queued I/O Count,” then press [ENTER]. A list of
available selections will appear. Move the cursor bar to an item, then
press [ENTER]. Choose Yes in the dialog box that follows to confirm
the setting.
Advanced Configurations 10-27