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MaxDB Backup to file problem

Hello,

We are running MaxDB version 7.6.03 Build 009-123-163-622 on AIX 7.1

While trying to configure a backup to disk ... we are facing below issue :
An error occurred while accessing a volume,VOLUME_TYPE=data,VOLUME_ID=32,BLOCK_NO=170961,NUMBER=8,ERRORTEXT=end of file,NUMBER1=86

For a more detailed log, see below.

I tried several backup options (1 file, more files), different disk types as destinations. But result remains the same.

Has anyone seen or experienced this ? What could be causing this problem ?

I saw a similar error in below post, but unfortunately it had no clue to an answer mentioned:
https://archive.sap.com/discussions/thread/1751238

Thanks for any help !

Detailed log :

 26     52024 SAVE     7410200 pages -> "ta1/TestBU/TestBU3_F1"
 26     52024 SAVE     7441000 pages -> "ta1/TestBU/TestBU3_F1"
 26     52024 SAVE     7471400 pages -> "ta1/TestBU/TestBU3_F1"
 26     52024 SAVE     7504000 pages -> "ta1/TestBU/TestBU3_F1"
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11987 IO/READ  read error: rc=4294967295, wanted=65536, 'I/O error', try again
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11987 IO/READ  read error: rc=4294967295, wanted=65536, 'I/O error', try again
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11000 aio_read read error: I/O error
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11987 IO/READ  read error: rc=4294967295, wanted=65536, 'I/O error', try again
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11987 IO/READ  read error: rc=4294967295, wanted=65536, 'I/O error', try again
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11000 aio_read read error: I/O error
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11987 IO/READ  read error: rc=4294967295, wanted=65536, 'I/O error', try again
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11987 IO/READ  read error: rc=4294967295, wanted=65536, 'I/O error', try again
170 ERR 11000 devio    read error (fd = 298): I/O error
170 ERR 11000 aio_read Error on read, I/O error
 34     11000 vasynclo '/sap2db/CE1/sapdata1/TestBU/TestBU3_F1' devno 110 T216
 12     12822 TASKING  Thread 183 joining
183     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata1/DISKD0001' devno 55 T216
 12     12822 TASKING  Thread 139 joining
139     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata2/DISKD0002' devno 56 T216
 12     12822 TASKING  Thread 140 joining
140     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata3/DISKD0003' devno 57 T216
 12     12822 TASKING  Thread 141 joining
141     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata4/DISKD0004' devno 58 T216
 12     12822 TASKING  Thread 142 joining
142     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata1/DISKD0005' devno 59 T216
 12     12822 TASKING  Thread 143 joining
143     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata2/DISKD0006' devno 60 T216
 12     12822 TASKING  Thread 144 joining
144     11566 stop     DEVi stopped
..............
.............. continues like this
..............
 34     11000 vasynclo '/sapdb/CE1/sapdata3/DISKD0031' devno 85 T216
 12     12822 TASKING  Thread 169 joining
169     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata4/DISKD0032' devno 86 T216
 12     12822 TASKING  Thread 170 joining
170     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata1/DISKD0033' devno 87 T216
 12     12822 TASKING  Thread 171 joining
171     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata2/DISKD0034' devno 88 T216
 12     12822 TASKING  Thread 172 joining
 34     11000 vasynclo '/sapdb/CE1/sapdata3/DISKD0035' devno 89 T216
172     11566 stop     DEVi stopped
 12     12822 TASKING  Thread 173 joining
 34     11000 vasynclo '/sapdb/CE1/sapdata4/DISKD0036' devno 90 T216
173     11566 stop     DEVi stopped
 12     12822 TASKING  Thread 174 joining
 34     11000 vasynclo '/sapdb/CE1/sapdata4/DISKD0037' devno 91 T216
174     11566 stop     DEVi stopped
 12     12822 TASKING  Thread 175 joining
 34     11000 vasynclo '/sapdb/CE1/sapdata1/DISKD0038' devno 92 T216
175     11566 stop     DEVi stopped
 12     12822 TASKING  Thread 176 joining
176     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata1/DISKD0039' devno 93 T216
 12     12822 TASKING  Thread 177 joining
177     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata2/DISKD0040' devno 94 T216
 12     12822 TASKING  Thread 178 joining
178     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata2/DISKD0041' devno 95 T216
 12     12822 TASKING  Thread 179 joining
179     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata3/DISKD0042' devno 96 T216
 12     12822 TASKING  Thread 180 joining
180     11566 stop     DEVi stopped
 34     11000 vasynclo '/sapdb/CE1/sapdata3/DISKD0043' devno 97 T216
 12     12822 TASKING  Thread 181 joining
 34     11000 vasynclo '/sapdb/CE1/sapdata3/DISKD0044' devno 98 T216
181     11566 stop     DEVi stopped
 12     12822 TASKING  Thread 182 joining
182     11566 stop     DEVi stopped
 34 ERR 52012 SAVE     error occured, basis_err 6433
 34 ERR 51080 SYSERROR unexpected error
 34 ERR     3 Backup   Data backup failed
 34 ERR     3 IOMan     +   An error occurred while accessing a volume,VOLUME_TYPE=data,VOLUME_ID=32,BLOCK_NO=170961,NUMBER=8,ERRORTEXT=en
 34 ERR     3 IOMan     +   d of file,NUMBER1=86
 34 ERR     3 IOMan     +   An error occurred while accessing a volume,VOLUME_TYPE=data,VOLUME_ID=32,BLOCK_NO=170953,NUMBER=8,ERRORTEXT=en
 34 ERR     3 IOMan     +   d of file,NUMBER1=86
 34 ERR     3 IOMan     +   An error occurred while accessing a volume,VOLUME_TYPE=data,VOLUME_ID=32,BLOCK_NO=170873,NUMBER=8,ERRORTEXT=en
 34 ERR     3 IOMan     +   d of file,NUMBER1=86
 34 ERR    17 SrvTasks  +   Servertask Info: because Error in backup task occured
 34 ERR    10 SrvTasks  +   Job 31 (Backup / Restore Volume Task) [executing] WaitingT216 Result=6433
 34 ERR     6 KernelCo  +   Error in backup task occured, Error code 6433 "system_error"
 34 ERR     6 KernelCo  +   Error in backup task occured, Error code 6433 "system_error"


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1 Answer

  • Best Answer
    Nov 21 at 04:16 PM

    SAP Message has been created and problem was identified ! Thanks to Bernd V (SAP) for his help and assistance !

    The problem was related to an underlying hardware issue ... corruption on the storage level.

    We managed to restore/recover the database on new storage to get rid of the issue !

    Kind regards,
    Johan

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