we're running SBS 2011 and recently ran the sharepoint service pack 1 update, I have run the“PSConfig.exe -cmd upgrade -inplace b2b -force -cmd applicationcontent -install -cmd installfeatures” command, but it did not fix the windows backup problem. I issued the vssadmin list writers command :
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool(C) Copyright 2001-2005 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: {b3672751-0a0f-434e-b744-9595b0e8eced}
State: [5] Waiting for completion
Last error: No error
Writer name: 'SqlServerWriter'
Writer Id: {a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}
Writer Instance Id: {0f116d22-2327-496f-9e00-36e7a50114a9}
State: [5] Waiting for completion
Last error: No error
Writer name: 'SharePoint Services Writer'
Writer Id: {da452614-4858-5e53-a512-38aab25c61ad}
Writer Instance Id: {fce2447c-c2b4-40bd-a7fa-f97e199a8fb9}
State: [8] Failed
Last error: Non-retryable error
Writer name: 'ASR Writer'
Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}
Writer Instance Id: {18dc192e-1187-4262-9d30-61534e120566}
State: [1] Stable
Last error: No error
Writer name: 'FSRM Writer'
Writer Id: {12ce4370-5bb7-4c58-a76a-e5d5097e3674}
Writer Instance Id: {84010196-7250-4d1d-a685-a97824d09f99}
State: [5] Waiting for completion
Last error: No error
Writer name: 'Shadow Copy Optimization Writer'
Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}
Writer Instance Id: {2e8f4770-5ed8-4115-9442-10b98458f019}
State: [1] Stable
Last error: No error
Writer name: 'IIS Metabase Writer'
Writer Id: {59b1f0cf-90ef-465f-9609-6ca8b2938366}
Writer Instance Id: {1fc1652b-a1e2-44b7-a33d-0adfaa82f8a5}
State: [5] Waiting for completion
Last error: No error
Writer name: 'BITS Writer'
Writer Id: {4969d978-be47-48b0-b100-f328f07ac1e0}
Writer Instance Id: {6f055cdf-bfc2-4832-aa10-b18ca9e278a2}
State: [1] Stable
Last error: No error
Writer name: 'TS Gateway Writer'
Writer Id: {368753ec-572e-4fc7-b4b9-ccd9bdc624cb}
Writer Instance Id: {303e416f-3316-4571-ba38-d8b5c0876f89}
State: [5] Waiting for completion
Last error: No error
Writer name: 'Certificate Authority'
Writer Id: {6f5b15b5-da24-4d88-b737-63063e3a1f86}
Writer Instance Id: {a7795e59-6983-48a5-9ce5-9b504435d037}
State: [5] Waiting for completion
Last error: No error
Writer name: 'Dhcp Jet Writer'
Writer Id: {be9ac81e-3619-421f-920f-4c6fea9e93ad}
Writer Instance Id: {25ac754a-8a53-4722-80ed-35afe96d85f3}
State: [5] Waiting for completion
Last error: No error
Writer name: 'FRS Writer'
Writer Id: {d76f5a28-3092-4589-ba48-2958fb88ce29}
Writer Instance Id: {132301d0-e2c0-42e1-bc90-88acd71167ce}
State: [5] Waiting for completion
Last error: No error
Writer name: 'WMI Writer'
Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}
Writer Instance Id: {7abf9cc6-7f22-485f-9a5e-2d068b9e65ff}
State: [5] Waiting for completion
Last error: No error
Writer name: 'COM+ REGDB Writer'
Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}
Writer Instance Id: {3fe8c8a7-cf96-4175-9f84-972a60698881}
State: [1] Stable
Last error: No error
Writer name: 'Microsoft Exchange Writer'
Writer Id: {76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}
Writer Instance Id: {d2d7ca59-91ce-4a35-ac78-1d33ef4d8a0e}
State: [5] Waiting for completion
Last error: No error
Writer name: 'MSSearch Service Writer'
Writer Id: {cd3f2362-8bef-46c7-9181-d62844cdc0b2}
Writer Instance Id: {1c5e8c65-bf7e-4beb-b7f7-0470471f6980}
State: [5] Waiting for completion
Last error: No error
Writer name: 'Registry Writer'
Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}
Writer Instance Id: {08b7fe8d-cb91-4ac6-9169-d75b4509246e}
State: [1] Stable
Last error: No error
Writer name: 'IIS Config Writer'
Writer Id: {2a40fd15-dfca-4aa8-a654-1f8c654603f6}
Writer Instance Id: {47e136c0-f2f4-4e4c-886f-7c296511fdb7}
State: [5] Waiting for completion
Last error: No error
Writer name: 'NTDS'
Writer Id: {b2014c9e-8711-4c5c-a5a9-3cf384484757}
Writer Instance Id: {1c89e837-34ba-4eb5-af29-249c1d2abbfd}
State: [5] Waiting for completion
Last error: No error
Writer name: 'NPS VSS Writer'
Writer Id: {35e81631-13e1-48db-97fc-d5bc721bb18a}
Writer Instance Id: {e1ec9014-c8ad-4626-81f5-4844d437668f}
State: [5] Waiting for completion
Last error: No error
any help is appreciated, thank you.