Dell 341-7212 User Guide - Page 90

Acronym for Serial Advanced Technology Attachment. A physical storage, Disk Drive

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Revision Level A physical disk property that indicates the revision level of the disk's firmware. SAS Serial Attached SCSI. SAS is a serial, point-to-point, enterprise-level device interface that leverages the Small Computer System Interface (SCSI) protocol set. The SAS interface provides improved performance, simplified cabling, smaller connectors, lower pin count, and lower power requirements when compared to parallel SCSI. SATA Acronym for Serial Advanced Technology Attachment. A physical storage interface standard. SATA is a serial link that provides point-to-point connections between devices. The thinner serial cables allow for better airflow within the system and permit smaller chassis designs. SCSI Device Type A physical drive property indicating the type of the device, such as Disk Drive. Serial No. A controller property indicating the manufacturer-assigned serial number. Size A virtual disk property indicating the amount of storage space on the virtual disk. Stripe Size A virtual disk property indicating the data stripe size used in the virtual disk. For storage configurations on Dell PERC 5/i controllers and Dell PERC 6/i controllers, the stripe size is user-selectable. striping A technique used to write data across all physical disks in a virtual disk. Each stripe consists of consecutive virtual disk data addresses that are mapped in fixed-size units to each physical disk in the virtual disk using a sequential pattern. For example, if the virtual disk includes five physical disks, the stripe writes data to physical disks one through five without repeating any of the physical disks. The amount of space consumed by a stripe is the same on each physical disk. Striping by itself does not provide data redundancy. Striping in combination with parity does provide data redundancy. 90 Glossary

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Glossary
Revision Level
A physical disk property that indicates the revision level of the disk’s firmware.
SAS
Serial Attached SCSI. SAS is a serial, point-to-point, enterprise-level device
interface that leverages the Small Computer System Interface (SCSI) protocol
set. The SAS interface provides improved performance, simplified cabling,
smaller connectors, lower pin count, and lower power requirements when
compared to parallel SCSI.
SATA
Acronym for Serial Advanced Technology Attachment. A physical storage
interface standard. SATA is a serial link that provides point-to-point connections
between devices. The thinner serial cables allow for better airflow within the
system and permit smaller chassis designs.
SCSI Device Type
A physical drive property indicating the type of the device, such as
Disk Drive
.
Serial No.
A controller property indicating the manufacturer-assigned serial number.
Size
A virtual disk property indicating the amount of storage space on the virtual disk.
Stripe Size
A virtual disk property indicating the data stripe size used in the virtual disk. For
storage configurations on Dell PERC 5/i controllers and Dell PERC 6/i
controllers, the stripe size is user-selectable.
striping
A technique used to write data across all physical disks in a virtual disk. Each
stripe consists of consecutive virtual disk data addresses that are mapped in
fixed-size units to each physical disk in the virtual disk using a sequential
pattern. For example, if the virtual disk includes five physical disks, the stripe
writes data to physical disks one through five without repeating any of the
physical disks. The amount of space consumed by a stripe is the same on each
physical disk. Striping by itself does not provide data redundancy. Striping in
combination with parity does provide data redundancy.