Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

4-8 Using TrueCopy for z/OS GUI
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
• Status:
– : Simplex. The volume is not currently assigned to a TCz pair. When
the initial copy is started by an add pair operation, the volume status
changes to Pending.
– : Pending. The TCz initial copy operation is in progress. Data on the
pair is not fully identical. When the initial copy is complete, the status will
change to Duplex.
– : Duplex. The volume is currently assigned to a TCz pair, and the pair
is synchronized. All updates from the host to the M-VOL are duplicated at
the R-VOL.
– : Suspend. The pair has been suspended by the MCU or RCU due to
an error condition. The volumes in this pair are not synchronized.
– : Suspending. TrueCopy for z/OS Async only. This pair is not
synchronized. This pair is in transition from Duplex or Pending state to the
Suspend state.
– : Deleting. TrueCopy for z/OS Async only. This pair is not
synchronized. This pair is in transition from the Duplex, Pending, or
Suspend state to the Simplex state.
• Sub: Suspend Sub Status
– GRP: Consistency time of volume is same as that of the consistency
group.
– VOL: Consistency time of volume is not same as that of the consistency
group.
– OFF: Suspended by the PS OFF by the MCU.
• S/N and SSID of the other storage system (MCU or RCU) of the pair.
• LDKC and CU and LDEV: LDKC number, CU number and LDEV ID of the
other volume of the pair.
Note: If "#" is added to the end of LDEV number (i.e. 3C#), the LDEV that
the LDEV number indicates is an external volume. For details on an
external volume, please refer to the Universal Volume Manager User's
Guide.
• Type: Pair mode: Synchronous or Asynchronous.
• Fence: The M-VOL fence level of the TCz pair: data, status, or never.
• Diff: The differential data setting (bitmap table managed by cylinder or
track).
• CTG: Consistency group number (00-7F) of the pair (only for Asynchronous
pairs).
• ErrLvl: Error level (GRP or VOL) of the pair (only for Asynchronous pairs).
• Sync: Percentage of completion of the copy operation.