Acer | HDS AMS200 User and Reference Guide 151In the following cases, do not set the Format Priority Mode to Format; it may cause asignificant deterioration in host access performance or a command time out. Accessing the host in which the logical unit is in the same RAID group as logical unitbeing formatted Formatting while using ShadowImage in-system replication, Truecopy, or Copy-on-writeSnapShotNote2: When format is performed while copying or restoring using ShadowImage in-systemreplication, or Copy-on-write SnapShot, set the Format Priority Mode to Normal.4. When the setting is complete, click Apply on the Configuration Setting screen. Thefollowing message appears, click OK.5. A message appears when the setting is complete, click the OK. Click Close on theConfiguration Settings screen.Note: The Format Mode tab includes the Format Data items, from which format data canbe selected. Normally, use the Default. Use the 0(zero) in the Format Data only when it isnecessary to clear the logical unit to 0(zero) at the time of connecting to TagmaStore USP.