The DADEP statement defines the direct access vcluae to be initialized. The format of the DADEP statement is:
r [nalle] DADEP' I TODEV=xxxxxx I,TOADDR=cuu I[,IPL=YES] 1{,VOLID=serial } I ,VOLID=SCRATCH 1[,!ODEL=n] 1[,CYLIO=nnn] 1
1----------------------------------------------- 1 [ , FLAGTEST=NO ]
2 I[ , PASSES=n] 1-------------------------------------------- I[,BYPASS=YES] 3 1 lApplies to initialization with or without surface analysis.
2Applies to initialization with surface analysis.
3Applies to initialization without surface analysis. TODEV=xxxxxx TOADDR=cuu IPL=YES is a 4-to 6-character device type of the direct access Specify either: 2305 2314 3340 for 3340 and 3344 3330 for 3330 !odels 1 or 2 and 3350 in 3330-1 coapatibility mode 3330-1 for 3330 Model 11 and 3350 in 3330-11
coapatibility aode 3350 in native mode is the channel (c) and unit address (uu) of the device. Specify the real address of the device if you are executing IBCDASDI on the real aachine; specify the virtual address of
the device if you are executing IBCDASDI on the virtual
aachine.
writes an IPL prograa on the minidisk. In IPL initialization program must be written on a device to be used for systea
residence. If IPL is oaitted, no IPL prograa is written. lot!: If you specify IPL=YES, you aust also include an IPLTXT statellent. VOLID=serial
is the voluae serial nuaber of the ainidisk to be initialized.
If "serial" aatches the voluae serial number found on the
ainidisk to be initialized, the operation proceeds. If it
does not aatch, the operator is notified. VOLID=SCRATCH specifies that no voluae nuaber check is to be aade.
Section 4. V!/370 Service Prograas 185

80DEL=n CYLHO=nnn is a decimal model number (lor 2). This operand is only for
the 2305 and corresponds to the 2305-1 and 2305-2, respectively.
is a decimal number that specifies the number of cylinders to
be If the CYLIO parameter is omitted, IBCDASDI intializes the entire real volume specified. If aore cylinders are than are available on
the minidisk, the message "Co.mand Reject" is returned. PLIGTEST=HO (applies to surface analysis) specifies that the program is
not to check for previously flagged tracks before surface
analysis is atteapted on this device. (FLIGTEST=IO applies only to 2314 and 2319 devices, and should be specified when
the disk recording surface is initialized for the first time.) Note: Because no on-drua volumes, are initialized.
check is made for previously flagged tracks PLAGTEST=NO is not coded when these devices P1SSES=n specifies the nuaber of passes per track to be aade in
checking for defective tracks. PASSES is valid when surface
analysis is to be performed or when a Quick DISDI is to be
perforaed on a 3330, 3330-1, 3340, or 3350 volume. The value
n can be 0 through 255. The 0 value indicates that a "Quick DASDI" is to be perforaed on a 3330, 3330-1, 3340, or 3350 volume. Por a 3330, 3330-1, 3340, or 3350 voluae, a value
other than zero causes record 0 to be written on each track. PASSES=O should be specified for 3330, 3340, and 3350 (full
disk or ainidisk) except when deliberately trying to free
alternate areas assigned by GETALT in the prime data area, at which tiae P1SSES=1 would have to be specified. No check is made for defective tracks on a 3330, 3330-1, 3340, or 3350. A value of 1 through 255 indicates the number of passes to be aade per track for volumes other than a 3330, 3330-1, 3340, or 3350 volu.e. If PASSES is oaitted, one pass is made per
track. BYP1SS=YES bypasses the rechecking
flagged as defective. If
are rechecked and those
assigned alternates. Por is ignored and BYPASS=YES 186 V8/370 Operator's Guide
of any tracks that are already BYPASS is omitted, flagged tracks
found defective are automatically 3330 or 3350 devices, this operand
is assumed.