All versions of TurboSTORE/iX work with any hardware configuration
supported by the MPE/iX system.
When using the basic Store and Restore functionality available in the
fundamental operating system (FOS), the minimum hardware requirement is
at least one disk drive and at least one tape drive. The tape drive can
be a magnetic tape drive, DDS drive, or StorageTek cartridge tape drive.
FOS STORE also allows you to store to more than one device at a time,
either serially or in parallel. When using parallel or serial devices
for a backup, up to 16 devices can be used in parallel. Within each
parallel device pool, up to 8 serial devices are supported. Each
parallel device will run as a separate process. Multiple processor
systems, therefore, will see an even greater increase in performance
when using parallel backups. A general rule is to use one less parallel
device than there are processors. For a four-way MP system, this would
mean three parallel devices.
When using the TurboSTORE/iX II or TurboSTORE/iX 7x24 True-Online Backup
products, the following Hewlett-Packard
magneto-optical (MO) devices are supported as backup devices:
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 | NOTE:
After MPE/iX Release 5.5, TurboSTORE/iX II and TurboSTORE/iX 7x24
True-Online Backup will only support the above three devices. New
magneto-optical devices will not be supported. |
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Each MO logical device can be used as a parallel backup device.
TurboSTORE supports the maximum allowable configuration of MO devices
for parallel backup. Note that many MO boxes contain two MO devices,
each of which can be used in a parallel backup.
When using TurboSTORE/iX 7x24 True-Online Backup, you can back up to and
restore from disk files. For the best performance, it is recommended
that the store-to-disk file(s) be located on a different device than the
files being stored or restored. However, this is not required. Storing
to more than one disk file in parallel is supported. Again, for the
best performance, each parallel disk file should reside on a different
disk or different volume set. Serial device "pools" are not supported
for disk files.
Although Store allows you to use a variety of backup devices, you cannot
mix backup devices within a single backup. If you want to use multiple
devices for a backup, they must all be one type. SCSI and HPIB DDS
devices and SCSI and HPIB magnetic tape devices can be used together,
however. Magneto-optical devices cannot be used with any tape
devices. Disk files cannot be mixed with any tape or magneto-optical
devices.
For more details on configuring your system for maximum backup performance,
refer to the HP3000 900 Series Computer System Configuration Guide
(5091-7438E). Your optimal hardware configuration will depend on your
backup requirements and type of system.
