ERR_SHMPLATFORMMISMATCH error occuring on an active system

[Former Member]

Hi

One of our databases has started to log the following error:

ERR_DBMSRV_NOSTART: Could not start DBM server.

ERR_SHMNOTAVAILABLE: Shared memory not available

ERR_SHMPLATFORMMISMATCH: Shared Memory from different platform Unknown (0x00) (expected WIN32, AMD64)

The database is still running (and has been for a couple of weeks prior to the start of the error) but we can't connect with the DBMGui and DBMcli. All SQL connections are OK (SQLCli and SAP).

Two questions:

1) How is the best way to restart the system??? I thought, stop maxdb and all other maxdb services. Remove the shm and shi files (posted in another thread) and then restart.

2) What may have caused this error??

Regards

Doug

[markus_doehr2 · Accepted solution]

Did you maybe install DBStudio on that server?

Markus

[Former Member · Accepted solution]

Hi Markus

No, we only have the DBMGui installed on this instance and this was installed over a year ago.

No changes have occured on the server and the system has been up for several days when the error started to occur.

Thanks

Doug

[markus_doehr2 · Accepted solution]

I must admit I have no clue why this appears now.

Are you a SAP customer? If yes, I'd open an OSS call (BC-DB-SDB)

Markus

[roland_mallmann · Accepted solution]

Hi,

this has already been reported in an existing OSS message.

We're looking into it.

@ Doug: can you please check the message? Thx.

Regards,

Roland

[Former Member · Accepted solution]

Hi Roland

I have updated the call.

For the forum, Roland suggested that we rename the 2 shared memory files (SID.dbm.shm and SID.dbm.shm) located in the e:\sapdb\data\wrk directory while the system was still up.

I was then able to connect to the various dbmsrv connections (DBMGui, Perl MaxDB, dbmcli etc). No downtime was required.

Thanks

Doug