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22. Contact and Links

22.1 Mail lists

Before you post to any of our lists please read the all of this document and check the archives to see if your question has already been answered. Please post in text only to our lists, fancy formated messages are near impossible to read if someone else is not running a mail client that understands it. Standard mailing list etiquette applies. Incomplete questions or configuration data make it very hard for us to answer your questions.

Subscription to all lists is accomplished through a web interface here.

linux-lvm

This list is aimed at user-related questions and comments. You may be able to get the answers you need from other people who have the same issues. Open discussion is encouraged.

lvm-devel

This is the development list for LVM. It is intended to be an open discussion on bugs, desired features, and questions about the internals of LVM. Feel free to post anything relevant to LVM or logical volume managers in general. We wish this to be a fairly high volume list.

lvm-commit

This list gets messages automatically whenever someone commits to the cvs tree. Its main purpose is to keep up with the cvs tree.

lvm-bugs

This is the default owner for all bugs in our bug tracking system. Sign up to this list if you want to see all of the new bugs.

22.2 Links

LVM Links:

22.3 Glossary

1 MHz

A frequency of one million (106) Hertz (cycles per second).

1 Mflop

s/ A computational rate of one million (106) floating-point operations per second.

1 Gflop

s/ A computational rate of one billion (109) floating-point operations per second.

1 Tflop

s/ A computational rate of one trillion (1012) floating-point operations per second.

1 KByte

210 bytes of data.

1 MByte

220 bytes of data.

1 GByte

230 bytes of data.

1 TByte

240 bytes of data.

1 MByte

s/ A data transfer rate of 220 bytes of data per second.

1 GByte

s/ A data transfer rate of 230 bytes of data per second.

1 TByte

s/ A data transfer rate of 240 bytes of data per second.

arbitrate

Process of selecting one L_Port from a collection of several ports that concurrently request use of the arbitrated loop.

arbitrated loop

A loop type topology where two or more ports can be interconnected, but only two ports at a time can communicate.

CDSL

Context Dependant Symbolic Links

CIDEV

Configuration Information Device

DMEP

Device Memory Export Protocol

F_Port

A port in a fabric where an N_Port or NL_Port may attach

fabric

A group of interconnections between ports that includes a fabric element.

FCP

Fibre Channel Protocol.

FL_Port

A port in a fabric when an N_Port or an NL_Port may attach.

GNBD

GNBD Network Block Device. A method of sharing a disk on one node to many other nodes.

HBA

See Host Bus Adapter.

Host Bus Adapter

The physical hardware installed in a node that allows the node to access a shared network medium.

L_Port

An arbitrated loop port: either an NL_Port, an FL_Port, or a GL_Port.

LUN

Logical Unit Number

N_Port

A port attached to a node for use with point-to-point or fabric technology.

NL_Port

A port attached to a node for use in all three topologies.

node

A device that has at least one N_Port or NL_Port (Fibre Channel only).

NPS

Network Power Switch

point-to-point

A topology where exactly two ports communicate.

RAID

Redundant Arrays of Independent Disks

stomith

Shoot The Other Machine In The Head. A technique used for removing a node from a cluster operation.

storage cluster

A group of networked computers that have equal, concurrent access to a shared storage space.

switch

A particular implementation of a fabric topology. Almost exclusively a hardware device.

topology

The arrangment in which the nodes of a LAN are connected to each other.


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