Hi,
Thank you for your reply. If the Unconfigure unformats the disk group
writing binary zeroes, why do you need to use the TRKFMT ERASEDATA
CYCLES(1) command first before the Unconfigure?
Thanks,
Judy Schultz
On 2/21/2012 4:14 PM, Mike Schwab wrote:
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
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