IBM 000-8697 Benutzerhandbuch

Index

Caching percentages

description of 5-10
mentioned 5-13, 5-17, 5-19

Cautions 3-116
Character-special file 1-41
Checkpoint

affected by online archiving 2-71
changing interval value 3-109
description of 2-70
forcing with tbmode -c 7-67
frequency trade-offs 5-20
initiating 2-70
maximum number of transactions

monitoring activity 3-69
page-cleaning parameters affect

reserved page information 2-97
role in fast recovery 2-71, 4-40,

role of timestamp in archive 4-33
size of checkpoint record 2-157
step in shared-memory

updating the reserved pages 2-95
what happens during 2-72

Chunk

adding 3-94
calculating maximum number of

description of 2-82
disk layout guidelines 1-43
fragmentation 3-72
free-list page 2-89, 2-90, 2-103
I/O errors during

maximum number 3-96
mirror chunk reserved page

monitoring 3-70
naming guidelines 2-94

offsets for pathname 1-48
raw disk devices versus cooked

recovering a down chunk 3-101
reserved page information 2-100
shared-memory table 2-49
status flags defined 3-71, 3-102
structure

additional dbspace chunk 2-90
blobspace chunk 2-92
initial dbspace chunk 2-89
mirror chunk 2-92

using a link to the pathname 1-22
write type 2-77

Chunk write 2-77
CHUNKS parameter

changing 3-96
description of 1-13
initial configuration value 1-35

CKPTINTVL parameter

changing 3-109
description of 1-13
initial configuration value 1-37
tuning for performance 5-20

CLEANERS parameter

changing 3-115
description of 1-13
initial configuration value 1-36
tuning for performance 5-17

Comment icons Intro-9
Committed Read isolation level

data-consistency checks 2-46
role of blob timestamps 2-45

Compliance

Configuration file

changing parameter values 3-87
creating multiple files 1-12
description of 1-11
displaying contents of 1-12
entering values in DB-

reserved page information 2-97
standard contents 1-13

Consistency-checking code

dealing with corruption 4-12
description of 4-6
environment variables 4-9

Console messages 3-110
CONSOLE parameter

changing 3-110
description of 1-13
initial configuration value 1-28

Contact information Intro-20
Conventions

command-line syntax Intro-9
example code Intro-12
railroad diagrams Intro-9

Cooked file space

description of 1-40
how to allocate 1-47

Coordinator database server

automatic recovery 9-23
description of 9-18

Core dump 4-10
Corruption

corrective actions 4-13
I/O errors from a chunk 4-13
recovery with data restore 4-45
symptoms of 4-13

CPU time tabulated 7-94
Critical section of code

description of 2-28
how to determine for a

Current database server