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Because high availability solutions require full-time access to data, HP has developed Mirrordisk/UX to provide mirroring capability within the HP-UNIX Operating System (HP-UX) environment.
Mirrordisk/UX, the mirroring component of Logical Volume Manager (LVM) from the Open Software Foundation (OSF), prevents data loss by maintaining up to three copies of data on separate disks. This enables data to remain intact after a single disk or interface card failure.
Mirrordisk/UX can mirror a disk partition, including the root and swap partitions. It supports mirroring of raw disk access as well as file system access. Mirrordisk/UX can increase input/output (I/O) disk performance depending upon the mix of disk reads and writes.