STONEFLY ISC-1208s, Руководство по установке

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StoneFly ISC Setup Guide Overview
V8.0.3x © StoneFly Inc. | All rights reserved Page 9
High availability
• Access local and remote copies of user configuration data
Object storage resources
•
Integrated cloud connection to Microsoft Azure Blob
Storage, Amazon AWS S3 and/or compatible AWS S3
storage
2.2. Theory of Operation
The StoneFly ISC is the mediator between hosts and storage devices in an IP network. IP-based
Storage Area Networks (IP SANs) use the iSCSI protocol over an Ethernet and TCP/IP network.
ISC also offers Network Attached Storage (NAS) which allows multiple host/users share files
over an Ethernet network. Each server, host, or user that needs access to the SAN storage devices
must implement the iSCSI protocol over an Ethernet and TCP/IP network.
2.2.1. iSCSI Overview
iSCSI is a protocol that enables the transmission of block-level data between storage resources
and computers over an IP network. iSCSI combines Ethernet-based IP networking with the SCSI
(small computer systems interface) command set—the core command set used in most storage
configurations. By combining SCSI and IP networking, iSCSI incorporates the two most widely
used storage and networking protocols.
2.2.2. IP SAN Configuration Overview
In addition to setting up the ISC, there are three other components which must be considered
when setting up an ISC:
iSCSI host initiators
Back-end storage (optional)
2.2.3. Network Attached Storage (NAS)
Network Attached Storage (NAS) is a storage technology that allows users to create shared
volumes that can be accessed by one or more users. The difference between iSCSI volumes and
NAS volumes are that NAS volumes (NAS shares) can be accessed by more than one
user/server, but iSCSI volumes in general can only be accessed by one server.
2.2.4. iSCSI Host Initiators
An iSCSI host initiator is the component of a server that “initiates” or originates storage
commands. There are three ways to set up iSCSI host initiators to work with the ISC: