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
The following tables list the flags (big flags) that can be set:
Linux specific
Flag value | Description |
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0x00000001 | main filter execution flow |
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0x00000002 | file system filter |
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0x00000004 | tracing of VFS methods |
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0x00000008 | pseudo device communication |
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0x00000010 | logging of events |
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0x00000020 | HSM attributes |
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0x00000040 | locking |
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0x00040000 | tracing of VFS methods (page cache) |
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0x00080000 | pseudo device communication - detail tracing |
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0x00100000 | logging of events - detail event structure dump |
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0x00200000 | inode info/HSM attributes - detail tracing |
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0x00400000 | locking - detail tracing |
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0x40000000 | tracing of Invisible IO (all operations that are hidden) |
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0x80000000 | tracing of all VFS methods (even those that are not needed) |
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Windows specific |
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Flag value | Description |
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0x00000001 | main filter execution flow |
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0x00000002 | file system filter |
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0x00000004 | tracing of FS methods |
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0x00000008 | device communication |
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0x00000010 | logging of events |
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0x00000020 | file object info |
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0x00000040 | locking |
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0x00000080 | HSM attributes/structures |
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Example
HSM_DEBUG_FS=0x0000007f
HSM_DEBUG_DISKBUF
This debugging variable cannot be used with the fsesystem
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