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SCSI Hot-Plug and
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Offline Hot-Swap
Offline Hot-SwapOffline Hot-Swap
Offline Hot-Swap
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NOTE:
NOTE:NOTE:
NOTE:
this feature is available for SCSI products. USB variants of HP DAT drives already benefit from
hot-plug capability through the USB 2.0 interface.
The HP StorageWorks DAT SCSI drives come in two variants that increase your uptime: hot-plug and
offline hot-swap. With these configurations, you never have to take down your system to replace a failed
or non-responding tape device.
Hot-plug tape drives are supported on all HP ProLiant and AlphaServers that have the universal drive
bay built in to the server. These drives can be inserted or removed without disassembling the server, thus
enabling the system to be operational 24x7. This configuration also provides the ability to mix tape
drives and 1" hot-plug hard drives on the same SCSI bus without slowing down the performance of the
system (supported on the HP Smart Array 5300 controller family and integrated Smart Array controller
and selected HP AlphaServer host bus adapters).
The HP StorageWorks Tape Array 5300 supports "offline hot-swap" (sometimes referred to as "warm-
swap") array modules, including DAT drives. This means the drives can be removed and replaced with
the power on and the SCSI cables attached to the server. Because the array's SCSI buses are not
buffered, however, drive replacement should only take place while the SCSI bus is quiescent (no SCSI
activity from the tape drive or any other device on the same bus). This is similar to HP hot-plug DAT
drives, though the hot-plug drives are not affected by other devices on the bus.
With the HP StorageWorks DAT hot-plug tape drives or array modules, the server does not need to be
taken offline to install the tape drive. Simply insert the tape drive into the server's hot-plug bay or the
Tape Array 5300's drive bay and install or configure the backup software.
Rack-Mount Tape
Rack-Mount TapeRack-Mount Tape
Rack-Mount Tape
Options
OptionsOptions
Options
HP DAT SCSI drives are supported on the HP StorageWorks 1U and 3U Rack-Mount Kits and the HP
StorageWorks Tape Array 5300. The 3U Rack-Mount Kit and the Tape Array 5300 allow up to four
internal DAT drives to be installed in 3U of rack space, while the 1U Rack-Mount Kit holds two DAT
drives in 1U of space. Both the 1U and 3U rack-mount kits use standard internal DAT SCSI drives for a
low-cost solution, while the Tape Array 5300 uses DAT array modules that provide offline hot-swap
capabilities and redundant components for high-availability environments.
Either of these rack enclosures can be configured with separate SCSI buses (channels) for each drive or
two or more drives per bus using the optional cable kits.
NOTE:
NOTE:NOTE:
NOTE:
Please refer to the QuickSpecs for HP StorageWorks Rack-Mount Kits at
http://h18000.www1.hp.com/products/quickspecs/10854_div/10854_div.html
or the HP StorageWorks Tape Array 5300 web page at
http://www.hp.com/products1/storage/products/tapebackup/tapearrays/tapearray5300/index.html
for further information.
QuickSpecs
HP StorageWorks DAT Drives
HP StorageWorks DAT DrivesHP StorageWorks DAT Drives
HP StorageWorks DAT Drives
Product Highlights
DA - 11883 Worldwide — Version 15 — March 20, 2006
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