HP File System Extender (FSE) specs

HSM_DEBUG_FS

The HSM_DEBUG_FS variable is a numeric value composed of several HSM file system filter debug flags. Set the flags if you want to trace specific information about the HSM file system filter driver. Flags are platform-dependent.

The following tables list the flags (big flags) that can be set:

Linux specific

Flag value	Description

0x00000001	main filter execution flow

0x00000002	file system filter

0x00000004	tracing of VFS methods

0x00000008	pseudo device communication

0x00000010	logging of events

0x00000020	HSM attributes

0x00000040	locking

0x00040000	tracing of VFS methods (page cache)

0x00080000	pseudo device communication - detail tracing

0x00100000	logging of events - detail event structure dump

0x00200000	inode info/HSM attributes - detail tracing

0x00400000	locking - detail tracing

0x40000000	tracing of Invisible IO (all operations that are hidden)

0x80000000	tracing of all VFS methods (even those that are not needed)

Windows specific

Flag value	Description

0x00000001	main filter execution flow

0x00000002	file system filter

0x00000004	tracing of FS methods

0x00000008	device communication

0x00000010	logging of events

0x00000020	file object info

0x00000040	locking

0x00000080	HSM attributes/structures

Example

HSM_DEBUG_FS=0x0000007f

HSM_DEBUG_DISKBUF

This debugging variable cannot be used with the fsesystem --enable-dbgcommand. It can only be specified in the trace.cfg file.

Use this variable if you want to control what happens to temporary files in the FSE disk buffer after they have been migrated to media, or after the recall process is completed.

278 Troubleshooting

File System Extender (FSE) specifications

HP File System Extender (FSE) is a sophisticated solution designed to optimize data storage management for enterprises that deal with large volumes of unstructured data. This technology addresses the challenges of data growth and the need for effective data retention strategies, enabling organizations to store and manage their information more efficiently.

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Overall, HP File System Extender is a comprehensive data storage solution that combines intelligent data management, seamless integration, insightful analytics, and robust security features. By leveraging these capabilities, organizations can efficiently manage their unstructured data, lower costs, and enhance operational efficiency, making it an invaluable tool in today’s data-driven landscape.

HP File System Extender (FSE) manual Windows specific Flag value Description

Models: File System Extender (FSE)

HSM_DEBUG_FS

Windows specific

Flag value

Description

Example

HSM_DEBUG_DISKBUF

File System Extender (FSE) specifications