However, upper back pain is most often due to muscle irritation or joint problems and is usually not a cause for concern. Upper back pain occurring with other symptoms, such as chest pain or difficulty breathing, may be a sign of a heart attack and should be immediately evaluated in an emergency setting.
(Small Computer System Interface) Pronounced scuzzy, SCSI is a hardware interface for up to 15 peripherals connected to one PCI or PCI Express card (SCSI host adapter) on the motherboard. Introduced in 1986 by Shugart Associates (see SASI), this original parallel architecture was largely replaced by a serial version (see serial attached SCSI).
The most common type of IP SAN uses iSCSI to encapsulate SCSI commands and assemble data into packets for transfer between the host servers and storage devices. IP SAN protocols typically run over a standard Ethernet network and use the Transmission Control Protocol/Internet Protocol (TCP/IP) for communication.An IP SAN for block-based data is often referred to as an iSCSI SAN.efinition: The Small Computer System Interface (SCSI) is a set of parallel interface standards used to attach disk drives and ... See complete definition. serial-attached SCSI (SAS). Serial-attached SCSI (SAS) is a point-to-point protocol used to transfer digital data between servers and SAS storage devices.