IBM 000-8697 User Manual
Operating OnLine
3-71
Monitor Chunks
The second screen display lists the following chunk information for each
dbspace:
dbspace:
■
Chunk ID
■
Chunk pathname and offset
■
Mirror status flags
■
Pages in the chunk
■
Number of used disk pages in the chunk
If a chunk is mirrored, both the primary chunk and the mirror chunk shared
the same chunk ID number.
the same chunk ID number.
The chunk status flags are defined as follows:
From the Command Line
From the command line, execute tbstat -d to obtain information that is
similar to the information available from the Dbspaces menu, Info option.
However, where
similar to the information available from the Dbspaces menu, Info option.
However, where
DB-M
onitor lists the number of used disk pages, tbstat -d
lists the number of free disk pages and, in the field
bpages
, the approximate
number of free blobpages. For further information about the
bpages
field,
refer to
Flag
Description
-
Chunk belongs to a dbspace.
B
Chunk belongs to a blobspace.
D
Chunk is down, no reads or writes can occur.
M
Mirror chunk.
O
Chunk is online.
P
Primary chunk.
R
Chunk is currently being recovered.
X
New mirror chunk that contains logical log files; a level-0 archive is
needed before the mirror can become active.
needed before the mirror can become active.