[Bug-cpio] HP GNU cpio does not process files larger than 2 GB

[Andre Cornelissen]

Hi,

While trying to restore an Oracle data
base file after a disk crash I discovered that the datafile (>2GB)  was
not written by GNU cpio.

We moved to GNU cpio because from HP
cpio we got the message:

echo ts_2.dbf | cpio -ovB >/backup/dbf2.cpio
"ts_2.dbf": Value too large to be stored
in data type 
cpio: Size of ts_2.dbf > 2GB. Not dumped.
10 blocks

After implementing GNU cpio we did not
get an error message anymore.

Now we need to restore the data base
file because the disk crashed and the attributes are restored but the file
size is 0 bytes.
Investigation into the cpio file showed
that the file data is not written, this was confirmed with test done with
a large (>2GB)  file.

address@hidden v1050> echo /u01/ORACLE/rados1/ts2/rados_ts_2.dbf
| /bin/cpio_hp_org -ovB >/backup/dbf2.cpio
"/u01/ORACLE/rados1/ts2/rados_ts_2.dbf":
Value too large to be stored in data type
cpio: Size of /u01/ORACLE/rados1/ts2/rados_ts_2.dbf
> 2GB. Not dumped.
10 blocks

address@hidden v1050> _ts_2.dbf | cpio -ovB >/backup/dbf2.cpio
                  <
/u01/ORACLE/rados1/ts2/rados_ts_2.dbf
1 block

address@hidden v1050> cpio -itvB </backup/dbf2.cpio
-rw-r-----   1 oracle   dba    
 2284593152 Aug 22 18:56 /u01/ORACLE/rados1/ts2/rados_ts_2.dbf
1 block

address@hidden v1050> ll
total 9368040
-rw-r--r--   1 root       sys
          5120 Aug 30 13:53 dbf2.cpio
drwxr-xr-x   2 rados      dba
          4096 Jun 21 15:19 rados
-rw-r--r--   1 root       sys
          5120 Aug 30 10:36 tape_block1
-rw-r--r--   1 root       sys
       4796405760 Aug 30 12:14 tape_cpio_block2

address@hidden v1050> cpio -ivB --to-stdout </backup/dbf2.cpio
>/backup/dbf2
/u01/ORACLE/rados1/ts2/rados_ts_2.dbf
1 block

address@hidden v1050> ll
total 9368040
-rw-r--r--   1 root       sys
             0 Aug 30 14:01 dbf2
-rw-r--r--   1 root       sys
          5120 Aug 30 13:53 dbf2.cpio
drwxr-xr-x   2 rados      dba
          4096 Jun 21 15:19 rados
-rw-r--r--   1 root       sys
          5120 Aug 30 10:36 tape_block1
-rw-r--r--   1 root       sys
       4796405760 Aug 30 12:14 tape_cpio_block2

address@hidden v1050> echo /u01/ORACLE/rados1/rb/rados_ts_rb.dbf
| cpio -ovB >/backup/dbfrb.cpio            
               <
/u01/ORACLE/rados1/rb/rados_ts_rb.dbf
61442 blocks

address@hidden v1050> ll
total 9982464
-rw-r--r--   1 root       sys
             0 Aug 30 14:01 dbf2
-rw-r--r--   1 root       sys
          5120 Aug 30 13:53 dbf2.cpio
-rw-r--r--   1 root       sys
       314583040 Aug 30 14:06 dbfrb.cpio
drwxr-xr-x   2 rados      dba
          4096 Jun 21 15:19 rados
-rw-r--r--   1 root       sys
          5120 Aug 30 10:36 tape_block1
-rw-r--r--   1 root       sys
       4796405760 Aug 30 12:14 tape_cpio_block2

address@hidden v1050> cpio -itvB </backup/dbfrb.cpio
-rw-r-----   1 oracle   dba    
 314580992 Aug 19 03:05 /u01/ORACLE/rados1/rb/rados_ts_rb.dbf
61442 blocks

address@hidden v1050> cpio -ivB --to-stdout </backup/dbfrb.cpio
>/backup/rb

/u01/ORACLE/rados1/rb/rados_ts_rb.dbf
61442 blocks

address@hidden v1050> ll
total 10596880
-rw-r--r--   1 root       sys
             0 Aug 30 14:01 dbf2
-rw-r--r--   1 root       sys
          5120 Aug 30 13:53 dbf2.cpio
-rw-r--r--   1 root       sys
       314583040 Aug 30 14:06 dbfrb.cpio
drwxr-xr-x   2 rados      dba
          4096 Jun 21 15:19 rados
-rw-r--r--   1 root       sys
       314580992 Aug 30 14:10 rb
-rw-r--r--   1 root       sys
          5120 Aug 30 10:36 tape_block1
-rw-r--r--   1 root       sys
       4796405760 Aug 30 12:14 tape_cpio_block2


background info:

hp-ux 11.00
cpio v 2.6
(from http://www.hpux.ws/merijn/downloads.html)

Regards,
   Andre

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