TemSe input/output to unopened file - Failing Background Jobs

All jobs started cancelling in production. In Sm21, I see below logs.

F3  V Error 22 for write/read access to a file. File =

F3  V Error 22 for write/read access to a file. File =

F3  V Error 22 for write/read access to a file. File = \\hostname\sapmnt\SID\SYS\global\400BDCLG\0001480972840873191

F6  1 TemSe input/output to unopened file

R3  8 Error at DB commit, return code 001024

R1  8 SAP Commit Failed

F6  1 TemSe input/output to unopened file

R3  8 Error at DB commit, return code 001024

F3  T Invalid object name for TemSe object: " "

EC  F Failed to create log for job EQUI_CHANGE 235252R5 %NEWSTEP/

F6  1 TemSe input/output to unopened file

R4  7 Delete session 001 after error 009

F6  1 TemSe input/output to unopened file

R3  8 Error at DB commit, return code 001024

R1  8 SAP Commit Failed

F6  1 TemSe input/output to unopened file

R3  8 Error at DB commit, return code 001024

F3  T Invalid object name for TemSe object: " "

EC  F Failed to create log for job EQUI_CHANGE 235252R0 %NEWSTEP/

F6  1 TemSe input/output to unopened file

R4  7 Delete session 001 after error 009

F6  1 TemSe input/output to unopened file

I ran all house keeping jobs to delete old logs. Also running temse consistency report. No file permission issue. I also find logs

Error 9 for write/read access to a file. File = \\hostname\sapmnt\SID\SYS\global\400JOBLG\***

Also lots of job in delay during midnight. I increased BTC WPs, but no use. OS : Windows 2003 server, DB - Sql server 2005

Please help ASAP. What could be the issue?

Thanks,

Kavitha.