COORDINATING SNAPSHOT OPERATIONS ACROSS MULTIPLE FILE SYSTEMS
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Dec 16, 2024
filing date -
Dec 16, 2024
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Abstract
Techniques are provided for coordinating snapshot operations across multiple file systems. A notification may be received that a snapshot of data stored across a persistent memory file system and a storage file system is to be generated. Forwarding, of modify operations from a persistent memory tier to a file system tier for execution through the storage file system, may be enabled. Framing may be initiated to notify the storage file system of blocks within the persistent memory file system that comprise more up-to-date data than corresponding blocks within the storage file system. In response to the framing completing, a consistency point operation is performed to create the snapshot and to create a snapshot image as part of the snapshot.
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