Explanation
A MODIFY SCDATA command has completed successfully.
The device specified on the command is given by
device_number.
The session specified on the command is given by
tass,
where the following apply:
- t
- Session type, which can be:
- C = concurrent copy session
- E = XRC enhanced (multiple reader) session
- X = XRC session
- a
- Session status, which can be:
- A = active session
- Q = quiesced session
- S = suspended session
- T = timed-out session
A session can become suspended as a result of a system reset
generated, for example, by a system IPL.
- ss
- Storage control session identifier. This is a hexadecimal number
ranging from 01 to FF.
The following values are displayed for active,
quiesced, and suspended sessions:
- rrrr
- The current count of record updates pending in the storage control
(hexadecimal).
- nnnn
- The device to be used for the next data mover I/O. When an SCDATA
command is issued and the device number is not available, the 2-byte
channel connection address is reported in this field. An asterisk
(*) after the device number indicates that the device is a fixed utility
device.
- mmmm
- The maximum size record in the storage control (hexadecimal).
If there are no updates pending in the storage control, the maximum
data track size is reported.
- sfilesz
- The number of 4K cache segments that are in the storage control
sidefile (hexadecimal). The sidefile is the part of cache that contains
data associated with data mover activity.
- sfilesz
- The number of 4K cache segments that represent 60% of the capacity
of the storage control cache (hexadecimal).
- timestamp
- The current storage control time value. If no information is available
or the session has never been initialized, the field is reported as
asterisks. Information is not available for a device that is not part
of the session.
- timeout
- The current storage control timeout interval. If no information
is available or the session has never been initialized, the field
is reported as asterisks. Information is not available for a device
that is not part of the session.
System action
The primary storage control status is displayed.
System programmer response
Source
Extended remote copy (XRC).