View Storage Systems In An Exctg; View Journals In An Exctg - HP StorageWorks P9000 User Manual

Item
C/T
Num of DKC
Num of JNL

View Storage Systems in an EXCTG

To display the storage systems in an EXCTG
1. Display the EXCTG Operation window.
2. In the tree, double-click Registered, then double-click the desired LDKC that displays below
Registered. Associated EXCTGs display in the tree below the selected LDKC.
3. Select the desired EXCTG.
The storage systems in the EXCTG display as shown in the following figure.
Fields in the storage system list are described in the following table.
Item
S/N(LDKC)
Controller ID
Num. of JNL
JNL
Cmd. Dev.

View journals in an EXCTG

To display the journals in an EXCTG
1. Display the EXCTG Operation window.
192 Continuous Access Journal Z GUI reference
Description
The consistency time of an EXCTG. For example, if the consistency time is 10:00 a.m., S-VOLs
in the EXCTG are synchronized with the P-VOLs that were available as of 10:00 a.m.
The consistency time appears in the following format:
month/date/year/hour/minute/second
For the number of seconds, the number before and after the decimal point appears.
In this column, the phrase Time is not consistent appears if secondary volumes in active journals
in the EXCTG do not have the same time stamp. For example, when a new journal is added to
the EXCTG, Time is not consistent appears if the time stamp of a S-VOL in this journal is newer
than the time stamp of S-VOLs in the existing journals.
Notes:
To maintain data update sequence, Cnt Ac-J Z performs arbitration processing on journals
in Active status only. Cnt Ac-J Z does not perform arbitration processing on journals in Stopped
status.
There is no time stamp appears in this column for an extended journal containing journals,
if an initial copy operation is performed when hosts do not issue any I/O request.
Underflow or Overflow appears in this column if an invalid time stamp is detected. If
Underflow appears, the time stamp is below the allowable range. If Overflow appears, the
time stamp is above the allowable range.
The consistency time is valid only for the updates on the Cnt Ac-J Z pairs in Duplex status.
When the data of the Cnt Ac-J Z pair that is in other than Duplex status is updated, the
consistency time is not assured. Therefore, even if the journal of the Cnt Ac-J Z pair that shares
the volume with BC Z or Cnt Ac-S Z is registered to the EXCTG, the consistency time is invalid
if the Cnt Ac-J Z pair is in other than Duplex status or if the BC Z or Cnt Ac-S Z pair is updated.
The consistency time is invalid also when the data is updated without the time stamp from
the host computer.
The number of storage systems registered in an EXCTG.
The number of journals registered in an EXCTG.
Description
Serial number of a storage system and LDKC number that is enclosed by parentheses.
Controller ID of a storage system and the model name of a storage system that is enclosed by
parentheses.
The number of journals in an storage system in the EXCTG.
Journal numbers. A journal number is a two-digit hexadecimal number.
Remote command device. The number on the left of the colon (:) is a CU number. The LDKC
number, the CU number and the LDEV number are displayed.