Dell IP4700 Service Guide - Page 122

Small Form Factor Committee, server, share, shelf, SP storage, processor, SPS standby power, supply

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Glossary server SFF share shelf SP (storage processor) SPS (standby power supply) storage processor (SP) In the context of storage systems, a processor that runs an operating system and uses a disk-array storage system for data storage and retrieval. Small Form Factor Committee The process by which you make CIFS files on one host available to another host. This term also refers to the shared directory itself (you create a share; you share a directory). Files in the directory are shared among user groups specified in permissions and access. Common functional components in either a DPE or DAE. for example, a shelf can consist of disks and their supporting hardware or storage processors and their supporting hardware. In an IP4700, the first shelf is always shelf 0 and contains SP A and SP B See storage processor (SP). A unit (otherwise known as a battery backup unit) that provides backup power in case of a power outage. An SPS is required for storage-system write caching. If power fails, the SPS allows the storage processor to write the data from its cache to disk. You can replace an SPS under power, without interrupting applications. A printed-circuit board with memory modules and control logic that manages the file system I/O between the clients and the disk modules. For higher availability and greater flexibility, an IP4700 uses a second storage processor. storage-system caching The procedure of storing disk-based data in RAM memory (in this case, RIMM memory on an storage processor) temporarily to save time if the data needs to be accessed or changed again soon. volume V A logical disk drive that is built across a group of disks and is permanently associated with one of the storage processors. You store directories and files in the volumes you create. g-4 IP4700 Installation and Service Guide

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g-4
IP4700 Installation and Service Guide
Glossary
server
In the context of storage systems, a processor that runs an operating
system and uses a disk-array storage system for data storage and
retrieval.
SFF
Small Form Factor Committee
share
The process by which you make CIFS files on one host available to
another host. This term also refers to the shared directory itself (you
create a share; you share a directory). Files in the directory are shared
among user groups specified in permissions and access.
shelf
Common functional components in either a DPE or DAE. for
example, a shelf can consist of disks and their supporting hardware
or storage processors and their supporting hardware. In an IP4700,
the first shelf is always shelf 0 and contains SP A and SP B
SP (storage
processor)
See
storage processor (SP).
SPS (standby power
supply)
A unit (otherwise known as a battery backup unit) that provides
backup power in case of a power outage. An SPS is required for
storage-system write caching. If power fails, the SPS allows the
storage processor to write the data from its cache to disk. You can
replace an SPS under power, without interrupting applications.
storage processor
(SP)
A printed-circuit board with memory modules and control logic that
manages the file system I/O between the clients and the disk
modules. For higher availability and greater flexibility, an IP4700 uses
a second storage processor.
storage-system
caching
The procedure of storing disk-based data in RAM memory (in this
case, RIMM memory on an storage processor) temporarily to save
time if the data needs to be accessed or changed again soon.
V
volume
A logical disk drive that is built across a group of disks and is
permanently associated with one of the storage processors. You store
directories and files in the volumes you create.