Effects of DFSMStvs states based on events

The DFSMStvs state is initializing.

In this state, all opens and record management requests are failed with nonzero return and reason codes. All closes are allowed; the opens with which the closes are associated probably belonged to a previous instance of DFSMStvs.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. DFSMStvs is already initializing.
VARY command to quiesce DFSMStvs	The command waits until DFSMStvs finishes initializing to quiesce DFSMStvs processing and change its state to quiescing.
VARY command to disable DFSMStvs	The command waits until DFSMStvs finishes initializing to disable DFSMStvs processing and change its state to disabling.
RRS becomes unavailable	DFSMStvs makes a note that RRS is unavailable. DFSMStvs begins disabling itself and sets its state to disabling when initialization reaches a point where it can do so.
A system log I/O error occurs	DFSMStvs makes a note that the I/O error occurred. DFSMStvs begins quiescing itself and sets its state to quiescing when initialization reaches a point where it can do so.

The DFSMStvs state is initializing and an operator command was issued to quiesce DFSMStvs processing.

In this state, DFSMStvs initialization completes and then the DFSMStvs state changes from initializing to quiescing. It performs DFSMStvs restart processing as part of the process of quiescing, but no work is allowed to start. All opens and record management requests are failed with nonzero return and reason codes. All closes are allowed; the opens with which the closes are associated probably belonged to a previous instance of DFSMStvs.

Event	Effect
VARY command to enable DFSMStvs	Command waits until DFSMStvs finishes initializing and then stacks behind the quiesce command.
VARY command to quiesce DFSMStvs	Command waits until DFSMStvs finishes initializing and is then rejected because such a command was already issued.
VARY command to disable DFSMStvs	Command waits until DFSMStvs finishes initializing and then stacks behind the quiesce command.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. DFSMStvs begins disabling itself and sets its state to disabling when initialization reaches a point where it can do so.
A system log I/O error occurs	DFSMStvs makes a note that this occurred. DFSMStvs will begin quiescing itself and will set its state to quiescing when initialization reaches a point where it can do so.

When the DFSMStvs state is initializing, a system log I/O error occurred, and an operator command has been issued to quiesce the previous instance of DFSMStvs.

In this state, DFSMStvs would not be initializing unless a cold start has been requested to clear the system log I/O error. All opens and record management requests are failed with nonzero return and reason codes. All closes are allowed; the opens with which the closes are associated probably belonged to a previous instance of DFSMStvs.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	Command waits until DFSMStvs finishes initializing and then is rejected because DFSMStvs is already initialized.
VARY command to quiesce DFSMStvs	Command waits until DFSMStvs finishes initializing and then DFSMStvs begins quiescing its processing and sets its state to quiescing.
VARY command to disable DFSMStvs	Command waits until DFSMStvs finishes initializing and then DFSMStvs begins disabling its processing and sets its state to disabling.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. DFSMStvs begins disabling itself and sets its state to disabling when initialization reaches a point where it can do so.
A system log I/O error occurs	This cannot occur. In this state, a cold start must be done, and DFSMStvs would not be writing to the system log during a cold start.

The DFSMStvs state is initializing, a system log I/O error occurred, and an operator command has been issued to quiesce the previous instance of DFSMStvs processing.

In this state, DFSMStvs would not be initializing unless a cold start has been requested to clear the system log I/O error. All opens and record management requests are failed with nonzero return and reason codes. All closes are allowed; the opens with which the closes are associated probably belonged to a previous instance of DFSMStvs.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	Command waits until DFSMStvs finishes initializing and then stacks behind the previous quiesce command.
VARY command to quiesce DFSMStvs	Command waits until DFSMStvs finishes initializing and then is rejected because such a command was already issued.
VARY command to disable DFSMStvs	Command waits until DFSMStvs finishes initializing and then stacks behind the previous quiesce command.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. DFSMStvs begins the process of disabling itself and sets its state to disabling when initialization reaches a point where it can do so.
A system log I/O error occurs	This cannot occur. In this state, a cold start must be done, and DFSMStvs would not be writing to the system log during a cold start.

DFSMStvs has initialized and its state is active.

In this state, opens, closes, and record management requests are all processed normally.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. DFSMStvs is already available.
VARY command to quiesce DFSMStvs	DFSMStvs begins the process of quiescing itself and sets its state to quiescing.
VARY command to disable DFSMStvs	DFSMStvs begins the process of disabling itself and sets its state to disabling.
RRS becomes unavailable	DFSMStvs begins the process of disabling itself and sets its state to disabling.
A system log I/O error occurs	DFSMStvs begins the process of quiescing itself and sets its state to quiescing.

DFSMStvs has initialized and its state is quiescing because a VARY command was issued to quiesce DFSMStvs processing.

In this state, opens and closes are all processed normally. Any record management requests for units of recovery that are already in progress are also processed normally. Record management requests for new units of recovery are rejected.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs sets its state to initializing and reinitializes itself.
VARY command to quiesce DFSMStvs	The command is rejected. DFSMStvs is already in the process of quiescing itself.
VARY command to disable DFSMStvs	DFSMStvs begins the process of disabling itself and sets its state to disabling.
RRS becomes unavailable	DFSMStvs begins the process of disabling itself and sets its state to disabling.
A system log I/O error occurs	The DFSMStvs state does not change, because DFSMStvs is already quiescing. However, DFSMStvs makes a note of the error, because a cold start will be required to correct the problem.

DFSMStvs has initialized and its state is quiescing because a system log I/O error occurred.

In this state, opens and closes are all processed normally. Any record management requests for units of recovery that are already in progress are also processed normally. Record management requests for new units of recovery are rejected.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. A cold start is required to recovery from the system log I/O error.
VARY command to quiesce DFSMStvs	DFSMStvs is already in the process of quiescing itself, but make a note that this occurred so that it will not come back up until another VARY command is issued to tell it to ENABLE itself.
VARY command to disable DFSMStvs	DFSMStvs begins the process of disabling itself and sets its state to disabling.
RRS becomes unavailable	DFSMStvs begins the process of disabling itself and sets its state to disabling.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

DFSMStvs has initialized and its state is quiescing because a system log I/O error occurred and because a VARY command was issued to quiesce DFSMStvs processing.

In this state, opens and closes are all processed normally. Any record management requests for units of recovery that are already in progress are also processed normally. Record management requests for new units of recovery are rejected.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that it was told to enable, but it issues a message to indicate that it is still quiescing due to the system log I/O error.
VARY command to quiesce DFSMStvs	The command is rejected. DFSMStvs is already quiescing.
VARY command to disable DFSMStvs	DFSMStvs begins the process of disabling itself and sets its state to disabling.
RRS becomes unavailable	DFSMStvs begins the process of disabling itself and sets its state to disabling.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is quiesced because a VARY command was issued to quiesce DFSMStvs processing.

DFSMStvs does not reach this state until the last data set that was open for DFSMStvs processing is closed. In this state, all opens are failed with nonzero return and reason codes. All closes and record management requests are rejected with X'0F4' abends because no closes or record management requests can occur after the last data set open for DFSMStvs processing is closed.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs begins the process of reinitializing itself and sets its state to initializing.
VARY command to quiesce DFSMStvs	The command is rejected. DFSMStvs is already quiesced.
VARY command to disable DFSMStvs	The command is rejected. DFSMStvs is already quiesced.
RRS becomes unavailable	DFSMStvs unregisters with RRS and RLS, disconnects from its logs, and sets its state to disabled.
A system log I/O error occurs	This cannot happen. DFSMStvs processing is quiesced; therefore, DFSMStvs cannot write to its system logs.

The DFSMStvs state is quiesced because a system log I/O error occurred.

DFSMStvs does not reach this state until the last data set that was open for DFSMStvs processing is closed. In this state, all opens are failed with nonzero return and reason codes. All closes and record management requests are rejected with X'0F4' abends because no closes or record management requests can occur after the last data set open for DFSMStvs processing is closed.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. A cold start is required to recover from the system log I/O error. The SMSVSAM server must be recycled.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that the command was issued so that it will not come up automatically if the SMSVSAM server happens to recycle with TV_START_TYPE set to `COLD`.
VARY command to disable DFSMStvs	DFSMStvs makes a note that the command was issued so that it will not come up automatically if the SMSVSAM server happens to recycle with TV_START_TYPE set to `COLD`.
RRS becomes unavailable	DFSMStvs unregisters with RRS and RLS, disconnects from its logs, and sets its state to disabled.
A system log I/O error occurs	This cannot happen. DFSMStvs processing is quiesced; therefore, DFSMStvs cannot write to its system logs.

The DFSMStvs state is quiesced because a VARY command was issued to quiesce DFSMStvs processing and a system log I/O error occurred.

DFSMStvs does not reach this state until the last data set that was open for DFSMStvs processing is closed. In this state, all opens are failed with nonzero return and reason codes. All closes and record management requests are rejected with X'0F4' abends because no closes or record management requests can occur after the last data set open for DFSMStvs processing is closed.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs resets the indicator that a command was issued to quiesce but does not reinitialize. A cold start is required to recover from the system log I/O error. The SMSVSAM server must be recycled.
VARY command to quiesce DFSMStvs	The command is rejected. DFSMStvs is already quiesced.
VARY command to disable DFSMStvs	The command is rejected. DFSMStvs is already quiesced.
RRS becomes unavailable	DFSMStvs unregisters with RRS and RLS, disconnects from its logs, and sets its state to disabled.
A system log I/O error occurs	This cannot happen. DFSMStvs processing is quiesced, therefore, DFSMStvs cannot write to its system logs.

The DFSMStvs state is disabling because RRS became unavailable, and then RRS became available again.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. DFSMStvs must complete the disable process before can reinitialize. It will do so automatically once the disable process completes.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that the command was issued. When RRS comes back up, DFSMStvs will reinitialize in a quiescing state long enough to clean up any incomplete units of recovery. It will not allow new work to begin.
VARY command to disable DFSMStvs	DFSMStvs makes a note that the command was issued so that it will not automatically reinitialize when the disable completes.
RRS becomes unavailable	DFSMStvs makes a note that this occurred and reinitializes when RRS becomes available again.
A system log I/O error occurs	DFSMStvs makes a note that this error occurred so that it does not automatically reinitialize until DFSMStvs is cold started.

The DFSMStvs state is disabling because RRS became unavailable, and then RRS became available again; in addition, an operator command was issued to quiesce DFSMStvs processing.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that this occurred. It will reinitialize automatically once the disable process completes.
VARY command to quiesce DFSMStvs	The command is rejected. Such a command was previously issued.
VARY command to disable DFSMStvs	DFSMStvs makes a note that the command was issued so that it will not automatically reinitialize when the disable completes.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. It does not reinitialize automatically when RRS becomes available again because a command was issued to quiesce it.
A system log I/O error occurs	DFSMStvs makes a note that this error occurred so that it does not automatically reinitialize until DFSMStvs is cold started.

The DFSMStvs state is disabling because an operator command was issued to disable DFSMStvs processing.

In this state, all opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs begins the process of reinitializing itself and sets its state to initializing.
VARY command to quiesce DFSMStvs	The command is rejected. Quiescing is a less restrictive state than disabling. As a result, transitioning from disabling to quiescing is not allowed.
VARY command to disable DFSMStvs	The command is rejected. DFSMStvs is already disabling.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. It does not reinitialize automatically when RRS becomes available again because a command was issued to disable it.
A system log I/O error occurs	DFSMStvs makes a note that this error occurred so that it does not automatically reinitialize until DFSMStvs is cold started.

The DFSMStvs state is disabling because RRS became unavailable and then became available again; in addition, a system log I/O error occurred.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. A cold start must be done to recover from the system log I/O error, which requires recycling the server.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that this occurred. When the SMSVSAM server recycles with TV_START_TYPE set to `COLD`, DFSMStvs reinitializes in a quiescing state long enough to clean up any incomplete units of recovery. It will not allow new work to begin.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred so that it does not automatically reinitialize if the SMSVSAM server recycles with TV_START_TYPE set to `COLD`.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. It does not reinitialize automatically when RRS becomes available again because of the system log I/O error.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is disabling because RRS became unavailable.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. DFSMStvs will automatically reinitialize when the disable completes and RRS becomes available.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that the command was issued. When RRS comes back up, DFSMStvs reinitializes in a quiescing state long enough to clean up any incomplete units of recovery. It does not allow new work to begin.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred so that it does not automatically reinitialize when RRS becomes available.
RRS becomes available	DFSMStvs finishes disabling and then reinitializes itself automatically.
A system log I/O error occurs	DFSMStvs makes a note that this occurred. A cold start is required to recover from the error.

The DFSMStvs state is disabling because an operator command was issued to disable DFSMStvs processing and a system log I/O error occurred.

In this state, all opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. Quiescing is a less restrictive state than disabling. As a result, transitioning from disabling to quiescing is not allowed.
VARY command to quiesce DFSMStvs	DFSMStvs switches from disabling to quiescing and sets its state to quiescing.
VARY command to disable DFSMStvs	The command is rejected. DFSMStvs is already disabling.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. It does not automatically reinitialize when RRS becomes available because an operator command was issued to disable it.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is disabling because RRS is unavailable and because an operator command was issued to disable DFSMStvs processing

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that this occurred. It will reinitialize automatically when RRS becomes available.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that this occurred, but the state remains disabling because of the RRS failure. When RRS comes back up, DFSMStvs will reinitialize in a quiescing state long enough to clean up any incomplete units of recovery. It will not allow new work to begin.
VARY command to disable DFSMStvs	The command is rejected. DFSMStvs is already disabling.
RRS becomes available	DFSMStvs makes a note that this occurred. It does not reinitialize itself automatically because an operator command was issued to disable DFSMStvs processing.
A system log I/O error occurs	DFSMStvs makes a note that this occurred. A cold start will be required to recover from the error.

The DFSMStvs state is disabling because RRS is unavailable; in addition, an operator command was issued to quiesce DFSMStvs processing.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that this occurred. It will reinitialize automatically when RRS becomes available.
VARY command to quiesce DFSMStvs	The command is rejected. Such a command was already issued.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred.
RRS becomes available	DFSMStvs makes a note that this occurred. It will not reinitialize automatically when RRS becomes available again because an operator command was issued to quiesce DFSMStvs processing.
A system log I/O error occurs	DFSMStvs makes a note that this occurred. A cold start will be required to recover.

The DFSMStvs state is disabling because RRS is unavailable; in addition, a system log I/O error occurred.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. A cold start is required to recover from the system log I/O error.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that this occurred. When the SMSVSAM server recycles with TV_START_TYPE set to `COLD`, DFSMStvs will reinitialize in a quiescing state long enough to clean up any incomplete units of recovery. It will not allow new work to begin.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred so that it will not automatically reinitialized if the SMSVSAM server recycles with TV_START_TYPE set to `COLD`.
RRS becomes available	DFSMStvs makes a note that this occurred. It will not reinitialize automatically because a cold start is required to recover from the system log I/O error.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is disabling because RRS is unavailable; in addition, a system log I/O error occurred and an operator command was issued to disable DFSMStvs processing.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that this occurred. It will not automatically reinitialize when RRS becomes available because of the system log I/O error.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that this occurred. When the SMSVSAM server recycles with TV_START_TYPE set to `COLD`, DFSMStvs will reinitialize in a quiescing state long enough to clean up any incomplete units of recovery. It will not allow new work to begin.
VARY command to disable DFSMStvs	The command is rejected. Such a command was already issued.
RRS becomes available	DFSMStvs makes a note that this occurred. It will not reinitialize automatically because a cold start is required to recover from the system log I/O error.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is disabling because RRS is unavailable; in addition, a system log I/O error occurred and an operator command was issued to quiesce DFSMStvs processing.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that this occurred. It will not automatically reinitialize when RRS becomes available because of the system log I/O error.
VARY command to quiesce DFSMStvs	The command is rejected. Such a command was already issued.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred.
RRS becomes available	DFSMStvs makes a note that this occurred. It will not reinitialize automatically because a cold start is required to recover from the system log I/O error.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is disabling because RRS became unavailable and then became available again, and an operator command was issued to disable DFSMStvs; in addition, a system log I/O error occurred.

In this state, DFSMStvs must complete the disable process before it can reinitialize because RRS reinitialized, which requires that DFSMStvs reinitialize as a new instance. All opens are failed with nonzero return and reason codes. All closes are processed normally. All record management requests are failed with nonzero return and reason codes.

Recommendation: After a cold start, any data sets for which recovery was not completed are most likely left in a damaged state and must be recovered manually. If the data sets are forward recoverable, their forward recovery logs might also be damaged. Manually recover the data sets (without using forward recovery), take backups of them and of any other data sets that use the forward recovery log, and then delete and redefine the forward recovery log.

Event	Effect
VARY command to enable DFSMStvs	DFSMStvs makes a note that this occurred but does not reinitialize. cold start must be done to recover from the system log I/O error, which requires recycling the server.
VARY command to quiesce DFSMStvs	The command is rejected. Such a command was already issued.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred.
RRS becomes available	DFSMStvs makes a note that this occurred. It will not reinitialize automatically because of the system log I/O error.
A system log I/O error occurs	There is no operational change because such an error has already occurred.

The DFSMStvs state is disabled because RRS became unavailable and then became available again.

When DFSMStvs reaches this state, it begins the process of reinitialize itself and sets its state to initializing, as long as no commands are issued to the contrary. In this state, all opens are failed with nonzero return and reason codes. All closes and record management requests are rejected with X'0F4' abends because no data sets should be open for DFSMStvs processing if DFSMStvs is disabled.

Event	Effect
VARY command to enable DFSMStvs	The command is rejected. DFSMStvs is about to reinitialize on its own.
VARY command to quiesce DFSMStvs	DFSMStvs makes a note that the command was issued. When RRS comes back up, DFSMStvs will reinitialize in a quiescing state long enough to clean up any incomplete units of recovery. It will not allow new work to begin.
VARY command to disable DFSMStvs	DFSMStvs makes a note that this occurred. The state remains DISABLE and DFSMStvs does not reinitialize.
RRS becomes unavailable	DFSMStvs makes a note that this occurred. It begins the process of reinitializing itself and waits for RRS to become available.
A system log I/O error occurs	This cannot occur when DFSMStvs is disabled because there is no DFSMStvs activity.

The DFSMStvs state is disabled because RRS became unavailable and then became available again, and an operator command was issued to quiesce DFSMStvs processing before DFSMStvs could begin to reinitialize.