I just did 6 of these. When you change a disk group from Raid 5 to Unformatted, it will format each disk individually writing B'00' into each byte. We have secure erasure requirements, so before breaking the disk group we used ICKDSF command TRKFMT ERASEDATA CYCLES(1). I takes quite a while, but it writes a full track record of B'00', B'11', and B'01' to each track before reiniting as an empty track.
On Tue, Feb 21, 2012 at 3:52 PM, Judy Schultz <[email protected]> wrote: > Hi, > We have a shark (2105-F20) that we need to erase the data on the volumes. IBM > hardware support told me to use the UNCONFIGURE command on the ESS > Specialist. Has anyone used this before and does it clean all of the data by > reinitializing it to zeroes? > Thanks, > Judy Schultz -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it all? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
