Andre,
Be careful when looking at ANALYZE.FILE for dynamic files.
The load & modulo don't translate well for static files because of
"large records".
The "DUM" example below is a dynamic file with 7 "large records" in it.
The 7 ids & pointers to the corresponding data's residence in OVER.30
easily fit in 1 group, but if you made the file static, you'd better
make it at least mod 5, since the "large record" concept doesn't exist
there.
ANALYZE.FILE shows mod 1 with 8% load.
GROUP.STAT shows 1 group with 14KBytes.
ls -l shows:
OVER.30 @ 16KB = 2KB x ( 1 header block + 7 data blocks)
DATA.30 @ 4KB = 2KB x ( 1 header block + 1 group )
Chuck Stevenson
DUM example:
>LIST DUM BYTES
LIST DUM BYTES 02:17:07pm 04 Jun 2004 PAGE 1
DUM....... BYTES......
A 1,699 ("large record" is any record over 1628)
B 1,699
C 1,699
D 1,699
E 1,699
F 1,699
G 1,699
7 records listed.
>ANALYZE.FILE DUM
File name .................. DUM
Pathname ................... DUM
File type .................. DYNAMIC
Hashing Algorithm .......... GENERAL
No. of groups (modulus) .... 1 current ( minimum 1 )
Large record size .......... 1628 bytes
Group size ................. 2048 bytes
Load factors ............... 80% (split), 50% (merge) and 8% (actual)
Total size ................. 20480 bytes
>
>GROUP.STAT DUM
Type description= Hashed, entire keys are full range of ASCII
characters.
Bytes Records File= DUM Modulo= 1 Sep= 4 Type= 30
14504 7 >>>>>>>
====== ====
14504 7 Totals
14504 7 Averages per group
0 0 Standard deviation from average
0.0 0.0 Percent std dev from average
>
>SH -c "ls -l DUM"
total 40
-rw-rw-rw- 1 cds33896 tech 4096 Jun 4 14:17 DATA.30
-rw-rw-rw- 1 cds33896 tech 16384 Jun 4 14:13 OVER.30
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