Just replied the BDW was more than blksize allocation on 3.2 I just increased that look out for my post vb i/o explained
Thanks On Wed, Jan 14, 2026 at 10:22 AM Schmitt, Michael < [email protected]> wrote: > Some ideas... > > Verify that the length of the block is correct on disk, it should be same > as BDW. Here's an example of a single VB LRECL=84 record with 4 bytes of > data (TEST). It shows that the block length is 12: > > CYL-HD-REC 0000044 07 000 Extent 1 of 1 Col 1 Format > HEX > Volume V9W008 7109 3390 DSNAME TTPJMSS.VBIOERR > Search limit * > Rec Type Len > ----+----10---+----2----+----3----+----4----+----5----+----6 > ************** Begin of track CYL:44 HD:7 > ********************************* > 1 DATA 12 CHAR ········TEST > ZONE 00000000ECEE > NUMR 0C0008003523 > 1 ----+----1-- > > Some error messages will go to the output of your TSO session's job, look > in SDSF or equivalent. Your site may be using a message class that is not > visible, so if so, change the message class. > > Make sure the ISPF log is enabled (Settings > Log/List > Log Data set > defaults, primary pages needs to be > 0. After the problem, view the log in > 7.5. > > Some messages go to SYSOUT or SYSPRINT, make sure both are allocated to > the terminal. > > You may need to get ISPF to produce a dump. Make sure you have the > appropriate dump DDs allocated, and in Settings > Environ > Environ > Settings, select "Enable a dump for a subtask abend when not in ISPF TEST > mode". Or, it may be sufficient to run your test from Dialog Test, because > that puts you in test mode. > > Or, can you send us the problem file? > > > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf > Of Joseph Reichman > Sent: Tuesday, January 13, 2026 1:17 PM > To: [email protected] > Subject: I/O error in ISPF in VB file > > Hi > > I have a VB file that I use bsam to write to > > The RDW contains length of record + 4 > > BDW contains the RDW + 4 as there is only one record > > The write and check come back ok > > However trying to browse this file in ISPF > > > I get an I/O error > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
