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creating during initial
configuration 1-59
description of 2-84
dropping 3-99
ending mirroring 3-105
identifying the dbspace for a
table 2-106
index page structure 2-133
logging activity 4-19
mirroring if logical log files
included 4-15
monitoring 3-75
monitoring blobs 3-65
page header 2-120
page types in an extent 2-115
reserved page information 2-99
shared-memory table 2-50
starting to mirror 3-105
structure 2-89, 2-90
structure of mirror chunk 2-92
tbcheck -pe links name to
table 3-78
DBSPACES parameter
changing 3-111
description of 1-14
initial configuration value 1-35
DEADLOCK_TIMEOUT parameter
description of 1-14, 9-57
initial configuration value 1-39
Demonstration database
copying Intro-6
installation script Intro-5
overview Intro-5
Dirty Read isolation level
data-consistency checks 2-45
role of blob timestamps 2-45
Disk layout for optimum
performance 1-43, 5-4
Disk page
before-images in physical
log 2-63
description of 2-82
function of timestamp pairs 2-44
logical page number 2-124
page compression 2-122, 2-133
physical page number 2-124
storing data on a page 2-125
structure
blobspace blobpage 2-115
dbspace page 2-120
types of pages in an extent 2-115
Disk space
allocating
cooked file space 1-47
overview 1-40
raw disk space 1-48
when a database is
created 2-109
when a table is created 2-111
chunk free-list page 2-103
creating a link to chunk
pathname 1-48
displaying usage by chunk 3-78
fragmentation 3-72
guidelines for layout 1-43
illustration of OnLine
concepts 2-83
initialization
commands 2-10
definition of 2-8
what happens during 2-14
list of structures 2-81
offsets for chunk pathnames 1-48
page compression 2-122, 2-133
raw devices versus cooked
files 1-40
reclaiming space in an empty
extent 2-118
requirements
for production
environment 1-43
for root dbspace 1-41
terms and definitions 2-81
tracking
available space in a
blobspace 2-148
available space in a chunk 2-103
free pages with bit-map
page 2-143
Documentation notes Intro-18
Documentation, types of
documentation notes Intro-18
error message files Intro-15
machine notes Intro-18
release notes Intro-18
DUMPCORE environment variable
description of 4-11
DUMPDIR environment variable
description of 4-12
DUMPSHMEM environment
variable
description of 4-11
DYNSHMSZ parameter
description of 1-14
initial configuration value 1-39
E
ENDTRANS logical log record 9-45
Environment variable
DBREMOTECMD 8-27
DUMPCORE 4-11
DUMPDIR 4-12
DUMPSHMEM 4-11
GCORE 4-10
INFORMIXDIR 1-57
PATH 1-57
PSORT_DBTEMP 5-23
PSORT_NPROCS 5-22
setting values for initial
configuration 1-54
SQLEXEC 1-55
TBCONFIG 1-55
Environment variables Intro-8
Error message files Intro-15
Error messages
ASCII file location Intro-15
available as Postscript
files Intro-15, Intro-18
documentation for Intro-15
during initialization 1-59
finderr script displays
messages Intro-15
IBM Informix OnLine format 1-60
rofferr script prints
messages Intro-15
two-phase commit protocol 9-43
UNIX format 1-60
Extent
description of 2-85
disk page types 2-115
displaying disk usage by
table 3-78
monitoring for
fragmentation 3-78