Oracle ZFS Storage Shows File Size Differences on Target System After Cloud Backup, Replication, Shadow Migration
(Doc ID 2637040.1)
Last updated on NOVEMBER 23, 2022
Applies to:
Oracle ZFS Storage ZS5-4 - Version All Versions to All Versions [Release All Releases]Oracle ZFS Storage ZS7-2 High End - Version All Versions to All Versions [Release All Releases]
Oracle ZFS Storage ZS5-2 - Version All Versions to All Versions [Release All Releases]
Oracle ZFS Storage Appliance Racked System ZS5-4 - Version All Versions to All Versions [Release All Releases]
Oracle ZFS Storage ZS7-2 Mid-Range - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.
Symptoms
Oracle ZFS Storage (ZFSSA) utilities that move data from one system to another may show a different size on the target system.
Utilities that move data are:
- Oracle Cloud Backup
- Replication
- Shadow Migration
For example with Oracle Cloud Backup:
- Share1 on <ZFSSA_SOURCE> in Boston shows a size of 4.46G in the ZFSSA Browser User Interface (BUI).
- A snapshot is taken and backed up to Cloud Storage.
- The backup is restored to <ZFSSA_TARGET> in Denver.
- The size of the share on <ZFSSA_TARGET> is 4.58G.
If the du command is run on files within the share, sizes mat be slightly different than on the original system.
For example, du is run on the source share and the migrated share:
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |