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47BE

I/O error reading the STARTUP OPTIONS file

Reason

An error occurred while reading the STARTUP OPTIONS file. A real I/O error might have occurred, in which case VM issues additional error messages, with the sense data for the device, or the STARTUP OPTIONS file might not be properly formatted and reserved.

Action

If CA ACF2 for z/VM displayed any additional error messages or sense data, refer to IBM VM documentation for these messages. Ensure that the STARTUP OPTIONS file is one cylinder, formatted with 4K blocks for CKD devices, or at least 12 formatted 512‑byte blocks for FBA devices, and that the file is a CMS reserved disk. Format and reserve the file, if necessary, and IPL again.