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3-16 Functional and Operational Characteristics
Hitachi Universal Storage Platform V/VM User and Reference Guide
Mode Category Function Default MCU/RCU
503 Common
For the Install CV, Make Volume, and Volume Initialize
functions of Virtual LVI/LUN, after LDEVs are installed, LDEV
format is suppressed, and a blocked LDEV is created.
Also, VLL operations and the UVM Add LU and Delete LU
operations are available even when an LDEV is blocked or being
formatted.
Mode 503 = ON: VLL operations with LDEV format suppressed
are available, and VLL operations can be performed when an
LDEV is blocked.
Mode 503 = OFF: After LDEV installation using VLL, LDEV
format is performed, and VLL operations cannot be performed
when an LDEV is blocked.
Notes:
When mode 503 is ON, LDEV format processing is
prevented, so the High Speed Format function for VLL
operations (mode 269) is not available.
For details about the relationship between mode 503 and
mode 269, see
Table 3-2 and Table 3-3 below.
When a PDEV is blocked or a correction copy is in progress,
VLL operations cannot be performed.
OFF –
505 VPM
Speed up changing CLPR cache assignment, and reduce the
processing time to a maximum of one minute per 1 GB.
Mode 505 = ON: Speed up changing CLPR cache assignment
(max 1 minute per 1 GB).
Mode 505 = OFF: Speed of changing CLPR cache assignment is
normal (max 5 minutes per 1 GB).
OFF –
530
Universal
Replicator for z/OS
When a UR for z/OS pair is in the duplex state, this option
switches the display of Consistency Time (C/T) between the
values at JNL restore completion and at JNL copy completion.
Mode 530 = ON: C/T displays the value of when JNL copy is
completed.
Mode 530 = OFF: C/T displays the value of when JNL restore is
completed.
Note: At the time of Purge suspend or RCU failure suspend, the
C/T of UR for z/OS displayed by Business Continuity Manager or
Storage Navigator may show earlier time than the time shown
when the pair was in the duplex state.
OFF RCU
531
OPEN and
mainframe
When PIN data is generated, the SIM currently stored in SVP is
reported to the host.
Mode 531 = ON: The SIM for PIN data generation is stored in
SVP and reported to the host.
Mode 531 = OFF: The SIM for PIN data generation is stored in
SVP only, not reported to the host, the same as the current
specification.
OFF MCU/RCU
545 Mainframe
When creating the record #0 field, this option is used to allow
the record #0 format with the WRFTK (x95) command in the
case the CCHH of Count part transferred from the host differs
from the CCHH of the currently accessed track address.
Mode 545 = ON: The record #0 format is allowed.
Mode 545 = OFF: The record #0 format is not allowed.
Note: Use this mode when CU type 2107 is used, or INVALID
TRACK FORMAT ERROR occurs on VM MINIDISK.
OFF MCU