Difference between legecy and unified logging

[gurminder_singh]

Hi All

I know the basic difference between unified and legecy logging like

unified loggine use from netbackup 6.0 onwards

unified logges are process with vxlogview command to make them readable and legecy logs are straight txt file and for unified logs we don't create directory.

But I wants to know the major difference, Why there is two types of logs or any other major difference.

[RamNagalla]

hope below info ad T/N help you..

NetBackup 6.x introduced a new type of logging, referred to as unified logging.  This style of logging is used by new NetBackup daemons, such as the Intelligent Resource Manager (IRM) and the Enterprise Media Manager (EMM) daemons

http://www.symantec.com/business/support/index?page=content&id=TECH45907

http://www.symantec.com/business/support/index?page=content&id=TECH43251

Daemons that use Unified Logging
A listing of processes and originators that use Unified logging include, but are not limited to:
 

• NetBackup Policy Execution Manager (nbpem)
• NetBackup Job Manager (nbjm)
• NetBackup Resource Broker (nbrb)
• NetBackup Enterprise Media Manager (nbemm)
• NetBackup Service Layer (nbsl)
• NetBackup Generic Job (nbgenjob)
• NetBackup Notification Service (nbnos)
• NetBackup for NDMP and ndmpagent
• NetBackup avrd and robotic processes
• NetBackup Operations Monitor (NOMTRS, NOMClient and NOMServer)
• Bare Metal Restore daemons (bmrd, bmbbd, bmrc, bmrs, bmrconfig, bmrsavecfg,bmrsrtadm, bmrprep, bmrsetupmaster, bmrsetupboot, bmrpkg, bmrcreatepkg,bmrcreatefloppy.exe, bmrrst.exe and bmrmap.exe)
• VERITAS Private Branch Exchange (VxPBX)

Daemons that continue to use Legacy logging
A listing of daemons that use Legacy logging include, but are not limited to:
 

• NetBackup Master Server daemons (bprd, bpdbm, bpjobd, bpdbjobs, admin)
• NetBackup Media Server daemons (bpbrm, bptm, bpdm)
• NetBackup Robotic daemons (vmd, avrd, ltid and robotic daemons)
• NetBackup Client daemons (bpcd, bpbkar, tar)

[mph999 · Accepted solution]

The other big difference is that legacy logs (bptm, bprd, bpcd etc ...) are single threaded, and unified (or as I call it vx logging) is multi-threaded.

Some articles I've written on logging:

This is a bit out of date now, it is still 100% correct, but there is an nbcplogs command that makes copying the logs easier, so all the details in the TN about copying the logs can be ignored.

http://www.symantec.com/business/support/index?page=content&id=TECH75805

This is a very short summary, and contains more or less everything you need to know:

https://www-secure.symantec.com/connect/articles/quick-guide-setting-logs-netbackup

Unified logs should always be sent to Symantec in 'raw' format.

Martin

[Marianne]

In addition to above excellent posts - you may also want to read through the Logging chapter of the Troubleshooting guide. It clearly explains the difference and location. Also that unified logging exist by default but that log folders must be created to enable legacy logging.

All of this info means nothing if you don't understand the role and purpose of each of the logs.

To understand which logs are needed for troubleshooting, you need to understand NBU process flow. Read through Appendix A of the Troubleshooting guide. It contains diagrams for backup and restore, along with detailed description of each process.

Links to all docs in 'Handy NBU links' in my signature.