Lenovo ThinkServer RD240 Software User's Manual page 355

NVRAM
NVRAM present
NVRAM size
offline
patrol read
patrol read rate
product info
product name
RAID
RAID 0
RAID 00
Acronym for non-volatile random access memory. A storage system that
does not lose the data stored on it when power is removed. NVRAM is
used to store firmware and configuration data on the RAID controller.
A controller property indicating whether an NVRAM is present on the
controller.
A controller property indicating the capacity of the controller's NVRAM.
A drive is offline when it is part of a virtual drive but its data is not
accessible to the virtual drive.
A process that checks the drives in a storage configuration for drive
errors that could lead to drive failure and lost data. The patrol read
operation can find and sometimes fix any potential problem with drives
prior to host access. This enhances overall system performance because
error recovery during a normal I/O operation may not be necessary.
The user-defined rate at which patrol read operations are run on a
computer system.
A drive property indicating the vendor-assigned model number of the
drive.
A controller property indicating the manufacturing name of the controller.
A group of multiple, independent drives that provide high performance by
increasing the number of drives used for saving and accessing data.
A RAID drive group improves input/output (I/O) performance and data
availability. The group of drives appears to the host system as a single
storage unit or as multiple virtual drives. Data throughput improves
because several drives can be accessed simultaneously. RAID
configurations also improve data storage availability and fault tolerance.
Redundant RAID levels (RAID levels 1, 5, 6, 10, 50, and 60) provide data
protection.
Uses data striping on two or more drives to provide high data throughput,
especially for large files in an environment that requires no data
redundancy.
Uses data striping on two or more drives in a spanned drive group to
provide high data throughput, especially for large files in an environment
that requires no data redundancy.
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