My Oracle Support Banner

Oracle Cloud Backup on ZFS Storage Shows File Size Differences After Migration (Doc ID 2637040.1)

Last updated on FEBRUARY 10, 2020

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 Cloud Backup on ZFS Storage (ZFSSA) may show a different size for a share that was migrated from one ZFSSA to another in the ZFSSA Browser User Interface(BUI) and with the du command.

For instance:

  1. Share1 on <ZFSSA_SOURCE> in Boston shows a size of 4.46G in the ZFSSA BUI.
  2. A snapshot is taken and backed up to Cloud Storage.
  3. The backup is restored to <ZFSSA_TARGET> in Denver.
  4. 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

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!


In this Document
Symptoms
Cause
Solution

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.