APAR status
Closed as program error.
Error description
IBM Spectrum Protect Plus takes a snapshot of a VM during the backup. This process creates a snapshot delta file. Any changes written to the VM will write to the delta file. At the end of the backup, the snapshot is removed which then merges the snapshot delta file back with the file system. The size of the snapshot delta file is proportional to the amount of writes on the guest during the backup. To minimize the size of the snapshot delta file, the VM snapshot should be taken as close as possible to the beginning of data transfer. IBM Spectrum Protect Plus currently takes a VM snapshot and then selects the proxy for the data transfer. If no proxy is available to transfer the data, then the duration of the snapshot lifecycle is increased, thereby increasing the size of snapshot delta file. No visible errors are reported in the job log for this. The consolidation of the VM will take longer which causes the overall job to run longer.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * IBM Spectrum Protect Plus levels 10.1.1 and 10.1.2 * **************************************************************** * PROBLEM DESCRIPTION: * * See ERROR DESCRIPTION. * **************************************************************** * RECOMMENDATION: * * This issue is currently projected to be fixed in level * * 10.1.3. Note that this is subject to change at the * * discretion of IBM * ****************************************************************
Problem conclusion
The proxy selection has been refactored so that the proxy is selected before the snapahsot is taken. The proxy selection for the VM was happening after the snapshot was taken. If proxy selection took a long time then the lifecycle was unnecessarily long. Proxy selection has been adjusted to be performed before the VM snapshot is taken.
Temporary fix
Comments
APAR Information
APAR number
IT27012
Reported component name
SP PLUS
Reported component ID
5737SPLUS
Reported release
A10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-11-16
Closed date
2019-02-15
Last modified date
2019-02-15
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
VADP
Fix information
Fixed component name
SP PLUS
Fixed component ID
5737SPLUS
Applicable component levels
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSNQFQ","label":"IBM Spectrum Protect Plus"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A10","Line of Business":{"code":"LOB26","label":"Storage"}}]
Document Information
Modified date:
30 January 2024