Information Systems:IBM i restricted state - Revision history

Norwinu at 17:39, 6 January 2017

2017-01-06T17:39:32Z

Norwinu: /* Notes */

2016-12-08T22:12:42Z

Notes

Norwinu at 22:12, 8 December 2016

2016-12-08T22:12:33Z

Norwinu: /* Overview */

2016-12-08T21:50:44Z

Overview

Norwinu: /* Notes */

2016-12-08T21:40:02Z

Notes

Norwinu: /* System restricted state */

2016-12-08T21:35:49Z

System restricted state

Norwinu: /* Notes */

2016-12-08T21:32:46Z

Notes

Norwinu: /* Application restricted state */

2016-12-08T21:31:40Z

Application restricted state

Norwinu: /* Definition */

2016-12-08T21:28:20Z

Definition

Norwinu: /* Definition */

2016-12-08T21:27:10Z

Definition

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  Many recovery procedures require that your system have no other activity on it. When no subsystems except the controlling subsystem are active on your system, it is in a ''restricted state''.
-For the overnight process, there is a similarly limited but custom environment/state that the system enters. Sheila used the term application restriction state to describe this state, and system restricted state to refer to IBM's definition.
+For the overnight process, there is a similarly limited but custom environment/state that the system enters. Sheila used the term ''application restriction state'' to describe this state, and ''system restricted state'' to refer to IBM's definition.
 The [[Information_Systems:Disaster_Recovery_Tasks_on_IBM_i|Disaster Recovery]] article also goes into detail about restricted states. That information is worth reading but may be merged here in the near future.

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 * The options in the GO DISASTER menu to start all processes recovers the system from an application restricted state. The option to end all processes puts the system in a system restricted state, but does not the set QCTL to restricted mode. Perform an IPL with the 'Boot into restricted state' option to put the system in restricted state in its most technically accurate definition.
-* ''I just discovered that the term batch-restricted state gets thrown around too. I have to look into this and how it fits into the context of this topic. -~~''
+* ''I just discovered that the term batch-restricted state gets thrown around too. I have to look into this and how it fits into the context of this topic. -[[User:Norwinu|norwizzle]] ([[User talk:Norwinu|talk]])''
 [[Category: uniPHARM Dictionary]]
 [[Category: Overnight Processing]]

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 * The options in the GO DISASTER menu to start all processes recovers the system from an application restricted state. The option to end all processes puts the system in a system restricted state, but does not the set QCTL to restricted mode. Perform an IPL with the 'Boot into restricted state' option to put the system in restricted state in its most technically accurate definition.
 [[Category: uniPHARM Dictionary]]
 [[Category: Overnight Processing]]

← Older revision		Revision as of 21:50, 8 December 2016
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	For the overnight process, there is a similarly limited but custom environment/state that the system enters. Sheila used the term application restriction state to describe this state, and system restricted state to refer to IBM's definition.		For the overnight process, there is a similarly limited but custom environment/state that the system enters. Sheila used the term application restriction state to describe this state, and system restricted state to refer to IBM's definition.
		+
		+	The [[Information_Systems:Disaster_Recovery_Tasks_on_IBM_i\|Disaster Recovery]] article also goes into detail about restricted states. That information is worth reading but may be merged here in the near future.

	=System restricted state=		=System restricted state=

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 :: For administration of uniPHARM end-of-day processes, application restricted state becomes relevant. It has little relevance outside the context of end-of-day processing.
-* The options in the GO DISASTER menu to start and end all processes enter and exit the system in a system restricted state, respectively.
+* The options in the GO DISASTER menu to start all processes recovers the system from an application restricted state. The option to end all processes puts the system in a system restricted state, but does not the set QCTL to restricted mode. Perform an IPL with the 'Boot into restricted state' option to put the system in restricted state in its most technically accurate definition.
 [[Category: uniPHARM Dictionary]]

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 As mentioned, this term refers to a state where only the controlling subsystem is active. For the most part this subsystem is QCTL, but in rarer occasions, can also be QBASE (depending on what the system value QCTLSBSD is set to). The best way to enter this state is through an IPL, as "Boot system into restricted state" is one of the parameters when performing an IPL. Read more about restricted state [https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/experience_web/wmrstate53.pdf here].
-''Will write more here, but system restricted state is more understandable as it is clearly defined. Application restricted state requires more of an explanation; see next section.''[[User:Norwinu|norwizzle]] ([[User talk:Norwinu|talk]]) 13:25, 8 December 2016 (PST)
+''Will write more here, but system restricted state is more understandable as it is clearly defined. Application restricted state requires more of an explanation; see next section.''-[[User:Norwinu|norwizzle]] ([[User talk:Norwinu|talk]]) 13:25, 8 December 2016 (PST)
 =Application restricted state=

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 * Summary:
 :: For system administration of the OS (PTFs, IPL etc.), restricted state refers to the official restricted state as defined by IBM.
-:: For administration of uniPHARM end-of-day processes, application restricted state is more relevant.
+:: For administration of uniPHARM end-of-day processes, application restricted state becomes relevant. It has little relevance outside the context of end-of-day processing.
 * The options in the GO DISASTER menu to start and end all processes enter and exit the system in a system restricted state, respectively.

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 Application Restricted State is a term coined by [[User:Sheilav|Sheila]] to describe a particular OS state/environment required to perform some ASW-related tasks in the overnight process. As part of [[Information Systems:EODEND2 | EODEND2]] - the process that prepares the system for the overnight process - all subsystems with the exception of QCTL and UP1480BS are shutdown. Therefore, in a simplified way, application restricted state can be seen as system restricted state + UP1480BS (recall that having QCTL as the only active subsystem is what defines system restricted state). However, there are additional points defining application restricted state:
-* When you enter a restricted state through the IPL option, the QCTL subsystem is started in a restricted mode as well. As a consequence, the job queue QCTL cannot accept jobs. (Or types of jobs? Admittedly, this is still a gray area that I have to do more research on. -[[User:Norwinu|norwizzle]] ([[User talk:Norwinu|talk]]) 13:25, 8 December 2016 (PST)) However, when entering application restricted state through EODEND2, the QCTL subsystem is both active and operating normally. In this state, jobs like the BRMS backup can be submitted to the QCTL job queue.
+* When you enter ''system restricted state'' through the IPL option, the QCTL subsystem is started in a restricted mode as well. As a consequence, the job queue QCTL cannot accept jobs. (Or types of jobs? Admittedly, this is still a gray area that I have to do more research on. -[[User:Norwinu|norwizzle]] ([[User talk:Norwinu|talk]]) 13:25, 8 December 2016 (PST)) However, when entering ''application restricted state'' through EODEND2, the system is running normally so the QCTL subsystem is in a normal state. In this state, batch jobs like the BRMS backup can be submitted to the QCTL job queue.
 * Though UP1480BS is active in application restricted state, EODEND2 actually shuts it down first for the temporary backup by issuing an ENDSBS, then starts it back up through the CHGASWCOM (Change ASW Company) command. Whether or not this is a simple stop-and-start to accommodate the temporary backup or whether this starts the subsystem in a special way (perhaps the temporary backup leaves the ASW company as PL?) is uncertain.

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 ===Definition===
-Application Restricted State is a term coined by [[User:Sheilav|Sheila]] to describe a particular OS state/environment required to perform some ASW-related tasks in the overnight process. As part of [[Information Systems:EODEND2 | EODEND2]] - the process that prepares the system for the overnight process - all subsystems with the exception of QCTL and UP1480BS are shutdown. Therefore, in a simplified way, application restricted state can be seen as system restricted state + UP1480BS (recall that having QCTL as the only active subsystem is what defines system restricted state). However, there are additional points to the definition of application restricted state:
+Application Restricted State is a term coined by [[User:Sheilav|Sheila]] to describe a particular OS state/environment required to perform some ASW-related tasks in the overnight process. As part of [[Information Systems:EODEND2 | EODEND2]] - the process that prepares the system for the overnight process - all subsystems with the exception of QCTL and UP1480BS are shutdown. Therefore, in a simplified way, application restricted state can be seen as system restricted state + UP1480BS (recall that having QCTL as the only active subsystem is what defines system restricted state). However, there are additional points defining application restricted state:
 * When you enter a restricted state through the IPL option, the QCTL subsystem is started in a restricted mode as well. As a consequence, the job queue QCTL cannot accept jobs. (Or types of jobs? Admittedly, this is still a gray area that I have to do more research on. -[[User:Norwinu|norwizzle]] ([[User talk:Norwinu|talk]]) 13:25, 8 December 2016 (PST)) However, when entering application restricted state through EODEND2, the QCTL subsystem is both active and operating normally. In this state, jobs like the BRMS backup can be submitted to the QCTL job queue.