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Getting "credentials already exist" when creating Media Server DeDuplication Pool

ls01c
Level 3

Hi,

I am getting error "credentials already exist" when creating the MSDP.

I have attached an iSCSI drive on a media server with letter E:\ and created a folder MSDP in there. For the storage path, i am using e:\MSDP.

The error is attached.

Hopefully someone has seen this before.

 

Thanks,

Sean

 

 

 

11 REPLIES 11

revarooo
Level 6
Employee

Are you recreating a MSDP pool?

Perhaps take a look at this technote to see if it helps

 

http://www.symantec.com/business/support/index?page=content&id=TECH150431

 

ls01c
Level 3

No, i am not recreating MSDP pool. the first time i created it failed, that time i did not receive the "credentials already exist" error.

but after that, i always receive that error.

revarooo
Level 6
Employee

Try running C:\Program File\Veritas\pdde\PDDE_deleteConfig.bat 

This will do a complete cleanup of that media server
 
NOTE: If anything IS configured for MSDP it will destroy it on this media server.

ls01c
Level 3

that failed as well. i have an attached iscsi drive E:\MSDP. i have a master server and media server. may i know what is the steps to setup a MSDP?

Mark_Solutions
Level 6
Partner Accredited Certified

It looks like your first attempt has put in the details somewhere already, even though it did not complete its setup

Does the server show up already under Credentials - Storage Servers?

If it does then you may just be able to continue by adding its disk pool etc. If that does not work then delete the Pure Disk Storage Server shown and start again

 

PeteWall
Level 4
Employee

When the first configuration failed, there's likely some artifacts left over that is causing the second configuration to fail.  revaroo's suggestion to run PDDE_deleteConfig.bat is the best option.  That'll clean up anything on the MSDP side.  That script will *not* remove the actual storage directory that was created.

After you run the script, make sure that you don't have a storage server entry in Credentials --> Storage servers, then run the configuration again.  If it fails, then we'll need to investigate the original failure.

Have you had MSDP working previously?

ls01c
Level 3

Hi Mark,

 

unfortunately, it did not show up under storage servers but it seems the credential is saved somewhere else.

Mark_Solutions
Level 6
Partner Accredited Certified

Did you try the PDDE_deleteConfig.bat?

Other than that you could try using nbdevconfig -deletests (or -updatests or -creatests) from the command line to try and force things through that way.

nbdevquery -liststs -U -storage_server mediaservername -stype PureDisk may give you a better idea of what is held in EMM for the server as a good starting point to know if you need to remove, update or create it.

See what you can do via the command line - you can always try adding the -force on the end (havent got a system to hand to try that one)

ls01c
Level 3

getting below:

C:\Program Files\Veritas\NetBackup\bin\admincmd>nbdevquery -liststs -U -storage_
server media_server_name
Storage Server      : media_server_name
Storage Server Type : BasicDisk
Storage Type        : Formatted Disk, Direct Attached
State               : UP
Flag                : AdminUp
Flag                : InternalUp
Flag                : SpanImages
Flag                : BasicStaging
Flag                : FragmentImages
Flag                : CatalogBackup
Flag                : Cpr
Flag                : RandomWrites
Flag                : FT-Transfer

ls01c
Level 3

May i know what kind credential i should enter during MSDP creation?

daniel_hooper
Level 5
Partner Certified

Hi All - I know this is late but this still happens in Netbackup 9.1.

The solution that worked for me is that if 1st attempt fails and you try again you get "credentials already exist".

During the 1st attempt it creates an NDMP entry against the media server you specified, in the emm database.

all you have to do is ..\netbackup\bin\admincmd\nbemmcmd -deletehost -machinename <media_server> -machinetype NDMP

 

Then retry creation again. Good luck