unquiesce (BPX1UQS, BPX4UQS) — Unquiesce a file system
Function
The unquiesce callable service unquiesces a file system, making the files in it available for use again. The backup of the data in the file system is complete.
Requirements
Operation | Environment |
---|---|
Authorization: | Supervisor or problem state, any PSW key |
Dispatchable unit mode: | Task |
Cross memory mode: | PASN = HASN |
AMODE (BPX1UQS): | 31-bit |
AMODE (BPX4UQS): | 64-bit |
ASC mode: | Primary mode |
Serialization: | Enabled for interrupts |
Locks: | No locks held |
Control parameters: | All parameters addressable in Primary |
Format
|
AMODE 64 callers use BPX4UQS with the same parameters.
Parameters
- File_system_name
- Supplied parameter
- Type:
- Character string
- Character set:
- Printable characters
- Length:
- 44 bytes
The name of a 44-character field that contains the file system name. The name should be left-justified in the field and padded with blanks.
- Unquiesce_Parms
- Supplied parameter
- Type:
- Structure
- Length:
- Fullword
The name of a fullword binary field that contains the unquiesce service options. This field is mapped by the BPXYMTM macro. Refer to BPXYMTM — Map the modes for mount and unmount for the unquiesce service options that are available.
- Return_value
- Returned parameter
- Type:
- Integer
- Length:
- Fullword
The name of a fullword in which the unquiesce service returns 0 if the request is successful, or -1 if it is not successful.
- Return_code
- Returned parameter
- Type:
- Integer
- Length:
- Fullword
The name of a fullword in which the unquiesce service stores the return code. The unquiesce service returns Return_code only if Return_value is -1. For a complete list of possible return code values, see z/OS UNIX System Services Messages and Codes. The unquiesce service can return one of the following values in the Return_code parameter:Return_code Explanation EBUSY The file system that was specified was not quiesced by this user, and force was not specified in Unquiesce_parms. The following reason code can accompany the return code: JRInvalidRequester. EINVAL An incorrect parameter was specified. Verify that only the force bit in Unquiesce_ parms was specified, that File_system_name is correct, and that File_system_name is for a quiesced file system. The following reason codes can accompany the return code: JRFileSysNotThere, JRInvalidParms, and JRNotQuiesced. EPERM The user cannot request this service, because it lacks the permission required to do so. The following reason code can accompany the return code: JRUserNotPrivileged. - Reason_code
- Returned parameter
- Type:
- Integer
- Length:
- Fullword
The name of a fullword in which the unquiesce service stores the reason code. The unquiesce service returns Reason_code only if Return_value is -1. Reason_code further qualifies the Return_code value. For the reason codes, see z/OS UNIX System Services Messages and Codes.
Usage notes
The unquiesce service makes a file system available for use again following a previous quiesce request.
Related services
Characteristics and restrictions
- In order to unquiesce a file system, the requester must be a superuser. This is the same authority that is required to mount or quiesce a file system.
- In a sysplex, an unquiesce will result in the file system being mounted on any system that did not have the file system mounted at that time. This situation could occur if a system joined the sysplex during the period of time that the file system was in a quiesced state.
Examples
For an example using this callable service, see BPX1UQS (unquiesce) example.