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Chapter 1 RAID introduction
1.1 Features
UltraStor RS16 controller is a high-performance RAID controller.
• Backplane solution
o UltraStor RS16: U320 SCSI (x2) -to- SATA II (x16) RAID controller.
UltraStor RS16 controller has the features listed below:
• RAID 6 ready.
• Snapshot-on-the-box / rollback (optional).
• SATA II support with SATA I backward compatible.
• N-way mirror.
• On-line volume expansion and RAID level migration.
• Global/dedicated cache configurable by volume.
• S.M.A.R.T. enabled.
• Support SAF-TE.
• Support Microsoft VDS (Virtual Disk Service; optional).
• Disk roaming.
• MPIO ready (initiator driver support is needed).
When properly configured, our RAID controller can provide non-stop service with
a high degree of fault tolerance through the use of RAID technology and
advanced array management features.
UltraStor controller connects to the host system through an SCSI interface. It
can be configured to any RAID level. It provides reliable data protection for
servers and offers a new technology to implement the RAID 6 function. The
RAID 6 function allows two HDD failures without impact on the existing data.
Data can be reconstructed from the remaining data and parity drives.
Snapshot-on-the-box is a point-in-time volume replication. It makes consistent
and instant copies of data volumes without any system downtime. It can keep up
to 32 snapshots for all data volumes. Rollback feature is provided so users can
easily restore the previously-snapshotted data easily while continuing using the
volume for further data access. The data access is just regular as before
including read and write without any impact on end users. The "on-the-box"
terminology implies the fact that it does not require any proprietary agents
installed at host side. The snapshot is taken at volume level. It will not consume
any host CPU cycles thus the server is dedicated to the specific application. The
snapshot copies can be taken manually or by schedule such as hourly and daily.
Enhance technology UltraStor RS16
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