Overland Storage SnapSAN S1000 User Manual page 127

SnapSAN S1000 User Guide
SCSI port
A SCSI port is an opening at the back of a router that provides connection between the SCSI
adapter and SCSI bus.
Session
When an initiator wants to establish a connection with a target, it establishes what is known
as an iSCSI session. A session consists of one or more TCP/IP connections between an
initiator and a target. Sessions are normally established (or re-established) automatically
when the host computer starts up, although they also can be established (and broken)
manually.
S.M.A.R.T.
Short for Self Monitoring, Analysis and Reporting Technology. A standard mechanism for
querying disk drives to monitor performance and reliability attributes, such as temperature,
read error rates and seek times. S.M.A.R.T. systems are built into most modern disk drives.
SMS
Short for Short Message Service. Is a means of sending short text messages to a mobile
phone.
SMTP
Short for Simple Mail Transfer Protocol. A TCP/IP protocol used for sending and receiving
email.
Snapback
The process of restoring a logical drive from a selected snapshot. This process takes place
internally in the RAID controller firmware and needs no support from any backup utility.
Snapshot
A method for producing a point-in-time image of a logical drive. In the process of initiating a
snapshot, no data is actually copied from the snapshot logical drive. However as new writes
are made to a snapshot logical drive, existing data blocks are copied to the
new data is written to the logical drive.
Snapshot LUN
A special LUN created from a combination of the snapshot logical drives' data and the data
contained in the ODA.
Snapshot Number
Identifier that references one of several snapshots of the same logical drive.
SSL
Short for Secure Sockets Layer. A protocol for managing the security of a message sent on the
Internet.
Storage Area Network
See SAN.
Stripe
The process of separating data for storage on more than one disk. For example, bit striping
stores bits 0 and 4 of all bytes on disk 1, bits 1 and 5 on disk 2, etc.
10400310-003 01/2013
©2010-13 Overland Storage, Inc.
Glossary
ODA before the
GL-12
