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2915303 - DB6: "DIA8312C Disk was full" occurs when the file system has enough free space

Symptom

You got the following errors in the db2diag.log while the file system itself has enough free space:

2020-01-08-14.18.01.062854+000 E15402627E783 LEVEL: Error (OS)
PID : 116370 TID : 139754188302080 PROC : db2sysc 0
INSTANCE: xxxx NODE : 000 DB : xxx 
HOSTNAME: xxxx
EDUID : 31 EDUNAME: db2pclnr (TDS) 0
FUNCTION: DB2 UDB, oper system services, sqloLioAIOCollect, probe:100
MESSAGE : ZRC=0x850F000C=-2062614516=SQLO_DISK "Disk full."
DIA8312C Disk was full.
CALLED : OS, -, aio_return OSERR: ENOSPC (28)
DATA #1 : File descriptor, 4 bytes
453
DATA #2 : unsigned integer, 8 bytes
16384
DATA #3 : signed integer, 8 bytes
160808960
DATA #4 : String, 105 bytes
Search for ossError*Analysis probe point after this log entry for further
self-diagnosis of this problem.

2020-01-08-14.18.01.063485+000 I15403411E2820 LEVEL: Error (OS)
PID : 116370 TID : 139754188302080 PROC : db2sysc 0
INSTANCE: xxxx NODE : 000 DB : xxx 
HOSTNAME: xxxx
EDUID : 31 EDUNAME: db2pclnr (TDS) 0
FUNCTION: DB2 Common, OSSe, ossErrorIOAnalysis, probe:100
CALLED : OS, -, aio_return OSERR: ENOSPC (28)
DATA #1 : String, 132 bytes
A total of 4 analysis will be performed :
- User info
- ulimit info
- Target file info
- File system

Target file handle = 453
DATA #2 : String, 188 bytes
Real user ID of current process = 9067
Effective user ID of current process = 9067
Real group ID of current process = 1010
Effective group ID of current process = 1010
DATA #3 : String, 369 bytes
Current process limits (unit in bytes except for nofiles) :
mem (S/H) = unlimited / unlimited
core (S/H) = unlimited / unlimited
cpu (S/H) = unlimited / unlimited
data (S/H) = unlimited / unlimited
fsize (S/H) = unlimited / unlimited
nofiles (S/H) = 65534 / 65534
stack (S/H) = 8388608 / unlimited
rss (S/H) = unlimited / unlimited
DATA #4 : String, 41 bytes
current sbrk(0) value: 0x000000000075a000
DATA #5 : String, 264 bytes
Target File Information :
Size = 160563200
Link = No
Reference path = N/A
Type = 0x8000
Permissions = rw-------
UID = 9067
GID = 1010
Last modified time = 1578493080
DATA #6 : String, 375 bytes
File System Information of the target file :
Block size = 4096 bytes
Total size = 21137846272 bytes
Free size = 301711360 bytes
Total # of inodes = 1310720
FS name = rootfs
Mount point = /
FSID = 64794
FS type name = rootfs
DIO/CIO mount opt = None
Device type = N/A
FS type = 0xe


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Environment

SAP on IBM Db2 for Linux, UNIX, and Windows

Keywords

DIA8312C, "Disk full"
, KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem

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