VSS

vssadmin list writers

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool(C) Copyright 2001-2013 Microsoft Corp.
Writer name: 'Task Scheduler Writer'   Writer Id: {d61d61c8-d73a-4eee-8cdd-f6f9786b7124}   Writer Instance Id: {1bddd48e-5052-49db-9b07-b96f96727e6b}   State: [1] Stable   Last error: No error
Writer name: 'VSS Metadata Store Writer'   Writer Id: {75dfb225-e2e4-4d39-9ac9-ffaff65ddf06}   Writer Instance Id: {088e7a7d-09a8-4cc6-a609-ad90e75ddc93}   State: [1] Stable   Last error: No error
Writer name: 'Performance Counters Writer'   Writer Id: {0bada1de-01a9-4625-8278-69e735f39dd2}   Writer Instance Id: {f0086dda-9efc-47c5-8eb6-a944c3d09381}   State: [1] Stable   Last error: No error
Writer name: 'System Writer'   Writer Id: {e8132975-6f93-4464-a53e-1050253ae220}   Writer Instance Id: {11f4a2fe-fc29-402d-8f4f-e4cd9b63696b}   State: [1] Stable   Last error: No error
Writer name: 'SqlServerWriter'   Writer Id: {a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}   Writer Instance Id: {f915c22b-e03b-4226-895d-30ea5e290953}   State: [1] Stable   Last error: No error
Writer name: 'ASR Writer'   Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}   Writer Instance Id: {cb2ff3bb-f45b-4c12-a134-d68236cb58c1}   State: [1] Stable   Last error: No error
Writer name: 'Shadow Copy Optimization Writer'   Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}   Writer Instance Id: {e2301067-7ea8-43b9-b227-056dc35fe6a6}   State: [1] Stable   Last error: No error
Writer name: 'Registry Writer'   Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}   Writer Instance Id: {6e7d10f7-4ce5-4973-a19f-10201b3010f1}   State: [1] Stable   Last error: No error
Writer name: 'Sentinel Agent Research Data VSS Writer'   Writer Id: {9112a876-c17f-4051-b2c3-43f646cde241}   Writer Instance Id: {9ddd611d-fa2e-4b6e-99e8-930ccde38c16}   State: [1] Stable   Last error: No error
Writer name: 'COM+ REGDB Writer'   Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}   Writer Instance Id: {1554d01c-e81a-47c7-9e8e-4ba112ed4229}   State: [1] Stable   Last error: No error
Writer name: 'Sentinel Agent Database VSS Writer'   Writer Id: {abd005ca-6bfc-44c9-a439-8eb665a676b3}   Writer Instance Id: {911f70bb-ace8-4987-a069-1c1a2c56d658}   State: [1] Stable   Last error: No error
Writer name: 'Sentinel Agent DFI Research Data VSS Writer'   Writer Id: {dcf8278a-dc0f-4b35-afd0-37a07e92fe90}   Writer Instance Id: {9c063936-15e2-4baf-998e-31833ac88f84}   State: [1] Stable   Last error: No error
Writer name: 'Sentinel Agent Log VSS Writer'   Writer Id: {90e12c7e-b9c2-4649-81a2-947d06dd5eba}   Writer Instance Id: {048dbd47-3da5-4fef-87b9-ff281c7cc817}   State: [1] Stable   Last error: No error
Writer name: 'WMI Writer'   Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}   Writer Instance Id: {e3141a38-3b9d-461f-ac46-ba28093291e3}   State: [1] Stable   Last error: No error
VSS Writer: Task Scheduler Writer   Service:    Display:  Writer ID: D61D61C8-D73A-4EEE-8CDD-F6F9786B7124      Note: "In-Box" VSS Writer
VSS Writer: VSS Metadata Store Writer   Service:    Display:  Writer ID: 75DFB225-E2E4-4D39-9AC9-FFAFF65DDF06      Note: "In-Box" VSS Writer
VSS Writer: Performance Counters Writer   Service:    Display:  Writer ID: 0BADA1DE-01A9-4625-8278-69E735F39DD2      Note: "In-Box" VSS Writer
VSS Writer: System Writer   Service: CryptSvc   Display: Cryptographic Services Writer ID: E8132975-6F93-4464-A53E-1050253AE220      Note: "In-Box" VSS Writer
VSS Writer: SqlServerWriter   Service: SQLWriter   Display: SQL Server VSS Writer Writer ID: a65faa63-5ea8-4ebc-9dbd-a0c4db26912a      Note: Installed with SQL Server
VSS Writer: ASR Writer   Service: VSS   Display: Volume Shadow Copy Writer ID: BE000CBE-11FE-4426-9C58-531AA6355FC4      Note: "In-Box" VSS Writer
VSS Writer: Shadow Copy Optimization Writer   Service: VSS   Display: Volume Shadow Copy  Writer ID: 4DC3BDD4-AB48-4D07-ADB0-3BEE2926FD7F      Note: "In-Box" VSS Writer
VSS Writer: Registry Writer   Service: VSS   Display: Volume Shadow Copy  Writer ID: AFBAB4A2-367D-4D15-A586-71DBB18F8485      Note: "In-Box" VSS Writer
VSS Writer: Sentinel Agent Research Data VSS Writer   Service:    Display:  Writer ID: 9112a876-c17f-4051-b2c3-43f646cde241      Note: 
VSS Writer: COM+ REGDB Writer   Service: VSS   Display: Volume Shadow Copy Writer ID: 542DA469-D3E1-473C-9F4F-7847F01FC64F      Note: "In-Box" VSS Writer
VSS Writer: BITS Writer   Service: BITS   Display: Background Intelligent Transfer Service Writer ID: 4969d978-be47-48b0-b100-f328f07ac1e0      Note: Background Intelligent Transfer Service
VSS Writer: Sentinel Agent Database VSS Writer   Service:    Display:  Writer ID: abd005ca-6bfc-44c9-a439-8eb665a676b3      Note: 
VSS Writer: Sentinel Agent DFI Research Data VSS Writer   Service:    Display:  Writer ID: dcf8278a-dc0f-4b35-afd0-37a07e92fe90      Note: 
VSS Writer: Sentinel Agent Log VSS Writer   Service:    Display:  Writer ID: 90e12c7e-b9c2-4649-81a2-947d06dd5eba      Note: 
VSS Writer: WMI Writer   Service: Winmgmt   Display: Windows Management Instrumentation Writer ID: A6AD56C2-B509-4E6C-BB19-49D8F43532F0      Note: "In-Box" VSS Writer

TODO

vssadmin list shadows

Bibliography

https://learn.microsoft.com/en-us/windows/win32/vss/the-vss-modelhttps://learn.microsoft.com/en-us/windows-server/administration/windows-commands/vssadminhttps://learn.microsoft.com/en-us/windows-server/administration/windows-commands/vssadmin-resize-shadowstoragehttps://learn.microsoft.com/en-us/windows-server/administration/windows-commands/vssadmin-delete-shadowshttps://bahtisametcoban.home.blog/2021/04/10/wait-who-is-taking-backup-of-sql-server-database/https://www.veeam.com/kb2041https://learn.microsoft.com/en-us/windows/win32/vss/in-box-vss-writershttps://learn.microsoft.com/en-us/windows/win32/vss/volume-shadow-copy-glossaryhttps://learn.microsoft.com/en-us/windows/win32/vss/vss-tools-and-sampleshttps://learn.microsoft.com/en-us/windows/win32/vss/vss-implementation-detailshttps://learn.microsoft.com/en-us/windows/win32/vss/volume-shadow-copy-referencehttps://support.carbonite.com/articles/Server-Windows-List-of-VSS-Writers-and-Services
https://www.reddit.com/r/sysadmin/comments/wpunvj/sentinelone_and_volume_shadow_copy_vss/https://old.reddit.com/r/sysadmin/comments/wlim69/if_you_use_sentinelone_watch_out_for_shadow_copies/https://www.reddit.com/r/msp/comments/1axxung/sentinel_one_and_sql_server_instance_issues/https://bahtisametcoban.home.blog/2021/04/10/wait-who-is-taking-backup-of-sql-server-database/https://www.reddit.com/r/SQLServer/comments/bshb7k/mysterious_sql_backups/https://www.cybervigilance.uk/post/sentinelone-configuring-snapshots
https://learn.microsoft.com/en-us/sql/relational-databases/backup-restore/sql-server-vss-writer-logging?view=sql-server-ver16