Disk Drive Health Check in NonStop Systems HP Part Number: 546223-001 Published: November 2008 Edition: J06.03 and subsequent J-series RVUs, H06.03 and subsequent H-series RVUs, and G06.
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About This Document This procedure describes how to perform a health check (scan) for a NonStop disk drive that is to be the sole member of a mirrored volume to be left online as a data source during mirror-splitting operations such as disk replacements, online disk capacity upgrades, and migratory REVIVEs. Supported Release Version Updates (RVUs) This topic supports J06.03 and all subsequent J-series RVUs, H06.03 and all subsequent H-series RVUs, and G06.
Disk Drive Health Check This procedure describes how to perform a health check (scan) for a NonStop disk drive that is to be the sole member of a mirrored volume to be left online as a data source during mirror-splitting operations such as disk replacements, online disk capacity upgrades, and migratory REVIVEs. Notes and Cautions CAUTION: • Some versions of FCHECK have a defect that could cause media errors to go undetected. For G-series, use T9208ABQ or a subsequent SPR.
Perform Health Check Scan Prior to Mirror Split 1. Before the actual mirror split is performed, but preferably within a relatively short time before that operation, run FCHECK on the mirrored pair: FCHECK [-rate xxx] –findbad –scan –vol $volume Run FCHECK at a priority lower than high-priority processes that might otherwise be impacted. If the disk is very busy, use a rate of 90 or less to minimize impact (although this will slow the scan considerably). Otherwise, leave it out or specify 100.
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