SCSI RESERVE Meaning and
Definition
-
SCSI reserve, also known as SCSI PERSISTENT RESERVE, is a feature of the SCSI (Small Computer System Interface) protocol that enables multiple devices or initiators to reserve access rights to a specific logical unit (LUN) on a SCSI target.
In SCSI, a target is a device such as a disk or tape drive that can receive commands, while an initiator is a device or host that sends commands to the target. A logical unit represents a addressable storage object on the target, such as a partition or a virtual disk.
The purpose of SCSI reserve is to ensure exclusive access to a LUN, preventing other initiators from accessing it simultaneously. This is particularly important in shared storage environments where multiple hosts need to access the same LUN without interference. By using SCSI reserve, initiators can reserve access to a LUN for a specific period of time, allowing only the initiator with the reservation to perform read or write operations.
SCSI reserve utilizes a Reservation Key, a unique identifier associated with a specific LUN, to establish and release reservations. An initiator can request a reservation by sending a Reserve command to the target, and the target responds by granting or rejecting the request. Once an initiator reserves a LUN, other initiators attempting to access the LUN during that period will receive a Reservation Conflict status.
Overall, SCSI reserve is a feature that ensures exclusive access rights to a specific LUN in SCSI-based storage systems, helping to prevent conflicts and maintain data integrity in shared storage environments.
Common Misspellings for SCSI RESERVE
- acsi reserve
- zcsi reserve
- xcsi reserve
- dcsi reserve
- ecsi reserve
- wcsi reserve
- sxsi reserve
- svsi reserve
- sfsi reserve
- sdsi reserve
- scai reserve
- sczi reserve
- scxi reserve
- scdi reserve
- scei reserve
- scwi reserve
- scsu reserve
- scsj reserve
- scsk reserve
- scso reserve
Etymology of SCSI RESERVE
The term "SCSI reserve" does not have a specific etymology because it is a technical term in computing that combines the words "SCSI" and "reserve". However, we can explore the origins of both words.
1. SCSI: "SCSI" stands for Small Computer System Interface. It is a set of standards for connecting and transferring data between computers and peripheral devices, such as hard drives, printers, and scanners. SCSI was first introduced in the early 1980s and has experienced various revisions and advancements over the years. Its original intention was to standardize the interface for connecting peripheral devices to computers, enabling fast and efficient data transfer.
2. Reserve: In computing, "reserve" refers to a reserved command or action that is not immediately executed but instead held for future use or exclusive access by a particular device or process.
Infographic
Add the infographic to your website:
