Hitachi 9900 User And Reference Manual page 49

Table 3.6 System Option Modes for TrueCopy - S/390
Mode Level Description and Usage
93 Optional TC390 Asynchronous graduated delay process for sidefile control.
ON: soft delay type.
OFF: strong delay type.
Amount of sidefile
-----------------------------------------------------------------------------------------
threshold – [15-20%] (HWM) 100 ms x 1 time
threshold – [10-15%]
threshold – [5-10%]
threshold – [0-5%]
threshold or higher
Microcode level: 01-13-18-00/07 and higher.
104 Optional TC390 CGROUP – Selects subsystem default for CGROUP FREEZE option. Applies only to 3990
controller emulation. Note: Mode 104 is invalid if the controller emulation is 2105. For 2105, use the
CGROUP option of CESTPATH.
ON: FREEZE enabled.
OFF: FREEZE disabled.
Microcode level: 01-10-00-00/10 and higher.
114 Optional TC390 – Allows dynamic port mode setting (RCP/LCP for serial, Initiator/RCU target for fibre-channel)
through PPRC CESTPATH and CDELPATH commands.
ON: Set defined port to RCP/LCP mode (serial) or Initiator/RCU target mode (fibre-channel) as needed.
OFF: Port must be reconfigured using Remote Console PC (or SVP).
Microcode level: 01-10-00-00/10 and higher.
Note: For fibre-channel interface, do not use the CESTPATH and CDELPATH commands at the same
time as the SCSI path definition function of LUN Manager. The FC interface ports need to be configured
as initiator ports or RCU target ports before the CESTPATH and CDELPATH commands are issued.
Caution: Before issuing the CESTPATH command, you must make sure that the relevant paths are
offline from the host(s) (e.g., configure the Chipid offline, or deactivate the LPAR, or block the port in the
ESCD). If any active logical paths still exist, the add path operation will fail because the port mode
(LCP/RCP) cannot be changed.
118 Optional HXRC, CC, TC390A – SIM notification when:
HXRC+CC sidefile reaches sleep wait threshold (see modes 45, 85, 86, 97).
TC390A sidefile reaches high-water mark (HWM = sidefile threshold - 20%) (see mode 93).
ON: Generate SIM.
OFF: Do not generate SIM.
Microcode level: 01-10-00-00/10 and higher.
Synchronous & Asynchronous (continued)
®
Strong delay type Soft delay type
20 ms x 1 time
200 ms x 1 time 40 ms x 1 time
300 ms x 1 time 60 ms x 1 time
400 ms x 1 time 80 ms x 1 time
500 ms x permanent 100 ms x permanent
Hitachi Lightning 9900™ User and Reference Guide 35