on 10-26-2007 9:45 AM
we are using MaxDB 7.5 with R/3 46C on Win 2003 64bit . We try to execute
a full backup of the maxdb .
We schedule the backup via at command using this command:
dbmcli -d ABC -u control,control -uUTL -c backup_start full_backup
THe backup starts but after some hours, after about 40GB have been
saved we receive this error:
"sql error -903,Host file I/O error"
We did more attempts but the backup is always interrupted after about 40 GB of data saved. The abend occurs always after about 3h from the start.
We didn't find any Oss Note for this error.
Regards
Hi Roberto,
You need to define a medium for the backup to take place. If it did not find any medium how can it will backup. so define a medium through DBM GUI or dbmcli and then fire the backup.
Medium: ANYNAME
location: D:\ANYFOLDER
Regards
Prashant
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Hi Roberto,
may be Data Cache parameter problem .Please check once .
Thanks & Regards,
Ramarao.A
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Addendum.
Into the knldiag.err file there are these informations.
0x1C0 ERR 18206 IO Could not write to 'f:\backup\sapbck', rc = 33
0xCEC ERR 52012 SAVE error occured, basis_err 3700
0xCEC ERR 52012 SAVE error occured, basis_err 5750
0xCEC ERR 52012 SAVE error occured, basis_err 5750
0x434 ERR 18206 IO Could not write to 'f:\backup\sapbck', rc = 1450
0xCEC ERR 52012 SAVE error occured, basis_err 3700
0xC90 ERR 18206 IO Could not write to 'f:\backup\sapbck', rc = 1450
0xCEC ERR 52012 SAVE error occured, basis_err 3700
0x1890 ERR 18206 IO Could not write to 'f:\backup\sapbck', rc = 1450
0xCEC ERR 52012 SAVE error occured, basis_err 3700
0x17A4 ERR 18206 IO Could not write to 'f:\backup\sapbck', rc = 33
What these rc means ?
regards
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Hello Roberto,
the operatings system error codes 33 and 1450 have this meaning
Errortext for errorcode 33:
'The process cannot access the file because another process has locked a portion of the file.'
Errortext for errorcode 1450:
'Insufficient system resources exist to complete the requested service.'
Maybe there are also some entries in the windows event log.
Best regards
Bernd
Hi Roberto,
these are Windows return codes.
They mean:
Errortext for errorcode 33:
'The process cannot access the file because another process has locked a portion
of the file.'
Errortext for errorcode 1450:
'Insufficient system resources exist to complete the requested service.'
(Please also have a look at: https://wiki.sdn.sap.com/wiki/x/LDU).
I don't know how rc 33 is involved in this, but you should check note 855562 concerning rc 1450.
Regards,
Melanie
Hi Melany
sorry so if I understand well the solution is to change the regedit key of the Windows server as indicated into the windows bulletin http://support.microsoft.com/kb/304101 ?
regards
Hi Roberto,
I have never tried these registry changes.
I'd go for the solution mentioned in the note:
Generally, the error occurs only if the 3 GB option is active in the
boot.ini file.
The workaround implemented as of Version 7.5.00 Build 29 cannot always
ensure that the error will no longer occur. <b>To make more internal
administration memory available on the operating system, you should use
the additional option /USERVA to limit the 3 GB option.</b> For more
information, see Note 990538.
Regards,
Melanie
Hello Roberto,
this is a limit of the 32bit OS. We can only work around this limit.
Try to set the parameter to a lower value or deactivate the 3 GB option. Of course you have to adapt the database parameters then accordingly that the database does not use more than 2 GB of memory...
You could also ask Microsoft about the options you have.
Another option would be to switch to 64bit...
Regards,
Melanie
THanks for the feedback.
The problem is that the server is already a 64 bit platform. It uses the Win 2003 64 bit x64 operating systems.
Please could you be more precise when you says to limiti deactivate the 3GB option or to adapt the DB parameters ?
Which parameters sould be better to change and how ?
regards
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