HHC00345I opts Display cckd options

HHC00345I comp=<n> Override compression (-1 ... 2)

HHC00345I compparm=<n> Override compression parm (-1 ... 9)

HHC00345I ra=<n> Set number readahead threads ( 1 ... 9)

HHC00345I raq=<n> Set readahead queue size ( 0 .. 16)

HHC00345I rat=<n> Set number tracks to read ahead ( 0 .. 16)

HHC00345I wr=<n> Set number writer threads ( 1 ... 9)

HHC00345I gcint=<n> Set garbage collector interval (sec) ( 1 .. 60)

HHC00345I gcparm=<n> Set garbage collector parameter (-8 ... 8)

HHC00345I gcstart Start garbage collector

HHC00345I nostress=<n> 1=Disable stress writes

HHC00345I freepend=<n> Set free pending cycles (-1 ... 4)

HHC00345I fsync=<n> 1=Enable fsync

HHC00345I linuxnull=<n> 1=Check for null linux tracks

HHC00345I trace=<n> Set trace table size ( 0 ... 200000)

Figure 48: CCKD HELP command

Example 3:

Display the CCKD statistics panel.

HHC00013I Herc command: 'cckd stats'

HHC00347I cckd stats:

HHC00347I reads.... 2726 Kbytes... 10997

HHC00347I writes... 141831 Kbytes... 179004

HHC00347I readaheads 751 misses... 65

HHC00347I syncios.. 1149 misses... 1352

HHC00347I switches. 3908 l2 reads. 322 strs wrt. 914

HHC00347I cachehits 1929 misses... 1979

HHC00347I l2 hits.. 15250 misses... 322

HHC00347I waits............ i/o...... 158 cache.... 0

HHC00347I garbage collector moves.... 984 Kbytes... 173612

Figure 49: CCKD STATS command

Example 4:

Set a CCKD parameter.

HHC00013I Herc command: 'cckd gcint=30'

HHC00346I cckd opts: comp=-1,compparm=-1,ra=2,raq=4,rat=2,wr=2,gcint=30

HHC00346I gcparm=0,nostress=0,freepend=-1,fsync=0,linuxnull=0,trace=0

Figure 50: CCKD command (set options)

8.25 CD (Change directory)

8.25.1 Function

The CD command changes the current directory.

8.25.2 Syntax

Descriptive

path

Diagram

path ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ÊÍ

8.25.3 Parameter

path

This specifies the new path. The path can be specified absolute (“D:\S390\DASD”)
or relative to the current path (“DASD”).

8.25.4 Examples

Example 1:

Change the current directory (absolute path).

HHC00013I Herc command: 'cd D:\MVS'

HHC02204I working directory set to D:\MVS

Figure 51: CD command (absolute path)

Example 2:

Change the current directory (relative path).

HHC00013I Herc command: 'cd DASD'

HHC02204I working directory set to D:\MVS\DASD

Figure 52: CD command (relative path)