SAM QFS samfsrestore Time is Too Long For Large 'shared' File Systems
Last updated on JUNE 11, 2018
Applies to:Sun QFS and Storage Archive Manager (SAM) - Version 5.3 and later
Information in this document applies to any platform.
Restoring a samfs 'shared' file system (samfsrestore) takes much longer than the equivalent samfsdump of that same file system. During a restore, if the file system is 'shared', this causes the kernel to synchronize the operations resulting in poor restore performance
The samfsrestore(1M) time can be significantly decreased if the file system is converted to 'non-shared' after it has been re-created with sammkfs(1M) and before doing the samfsrestore(1M).
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms