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DRM files - How long to keep?

tjcooper

ADSM.ORG Member
#1
We have a 6 month retention policy. The C Drive on my TSM server is low on space. The original administrator had a horribl habit of making very small C drives despite the ample storage available on todays drives (yes, its frustrating).

I am looking for space to recover and noticed we have a DRMFiles folder with DRM files going back 8 years. From what I have read, each days file is all that is needed to recover to that day's state.

Is my understanding correct or do they build off eachother similiar to an incremental backup?
 

mikeymac

ADSM.ORG Moderator
#2
Are these your recovery plan files? You should be removing these periodically.

Do a QUERY DRMSTATUS to see how long your plan files are being kept.


Use the SET DRMRPFEXPIREDAYS command to set an appropriate value.

Each day's plan stands on its own. I keep 14 days worth of plans in my environment.
 

BBB

ADSM.ORG Moderator
#3
Re SET DRMRPFEXPIREDAYS - this only works for dr plan files stored on a remote server using server 2 server comms, this does not apply to storing the plans locally on the server, you need to use a script to do this automatically or delete them manually.

Tjcooper you can safely delete old DR plan files. A "safe" number is anything >= the number of days you keep your database backups, but you could add 2 weeks or to this to be extra cautious if you want. So if you keep tsm db backups for 2 weeks, delete dr plans older than 4 weeks.
 

mikeymac

ADSM.ORG Moderator
#4
Well, duh.

Of course, BBB is correct. I actually have a Korn shell script setup that performs this function (it works so well, I'd forgotten about it!)

If you need a sample of a VBScript script that would do the same on Windows, let me know.
 

mikeymac

ADSM.ORG Moderator
#6
Here ya go! Change the sDirectoryPath and AgeOfFiles variables to suit your purposes.

Code:
Option Explicit 
On Error Resume Next 
Dim oFSO, oFolder, sDirectoryPath 
Dim oFileCollection, oFile, sDir 
Dim AgeOfFiles 
' What directory are the files in?
sDirectoryPath = "C:\MyFolder" 
' Files must be at least this old to be deleted.
AgeOfFiles = 15
Set oFSO = CreateObject("Scripting.FileSystemObject") 
Set oFolder = oFSO.GetFolder(sDirectoryPath) 
Set oFileCollection = oFolder.Files 
For each oFile in oFileCollection
   If oFile.DateLastModified < (Date() - AgeOfFiles) Then 
     oFile.Delete(True) 
   End If   
Next 
Set oFSO = Nothing 
Set oFolder = Nothing 
Set oFileCollection = Nothing 
Set oFile = Nothing
 

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The Spectrum Protect TLA (Three-Letter Acronym): ISP or something else?

  • Every product needs a TLA, Let's call it ISP (IBM Spectrum Protect).

    Votes: 8 22.9%
  • Keep using TSM for Spectrum Protect.

    Votes: 17 48.6%
  • Let's be formal and just say Spectrum Protect

    Votes: 6 17.1%
  • Other (please comement)

    Votes: 4 11.4%

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