<glossentry xml:id="DNE" condition='l24'>
<glossterm>Distributed namespace (DNE)</glossterm>
<glossdef>
-
<para>A collection of metadata targets serving a single file
+ <para>A collection of metadata targets serving a single file
system namespace. Prior to DNE, Lustre file systems were limited to a
single metadata target for the entire name space. Without the ability
to distribute metadata load over multiple targets, Lustre file system
performance is limited. Lustre was enhanced with DNE functionality in
two development phases. After completing the first phase of development
in Lustre software version 2.4, <emphasis>Remote Directories</emphasis>
- allowed the metadata for sub-directories to be serviced by an
+ allows the metadata for sub-directories to be serviced by an
independent MDT(s). After completing the second phase of development in
Lustre software version 2.8, <emphasis>Striped Directories</emphasis>
- allowed files in a single directory to be serviced by multiple MDTs.
+ allows files in a single directory to be serviced by multiple MDTs.
</para>
</glossdef>
</glossentry>
<glossentry xml:id="lnd">
<glossterm>LND</glossterm>
<glossdef>
- <para>Lustre network driver. A code module that enables LNET support
+ <para>Lustre network driver. A code module that enables LNet support
over particular transports, such as TCP and various kinds of InfiniBand
networks.</para>
</glossdef>
</glossentry>
<glossentry xml:id="lnet">
- <glossterm>LNET</glossterm>
+ <glossterm>LNet</glossterm>
<glossdef>
<para>Lustre networking. A message passing network protocol capable of
- running and routing through various physical layers. LNET forms the
+ running and routing through various physical layers. LNet forms the
underpinning of LNETrpc.</para>
</glossdef>
</glossentry>
<glossterm>MDC</glossterm>
<glossdef>
<para>Metadata client. A Lustre client component that sends metadata
- requests via RPC over LNET to the metadata target (MDT).</para>
+ requests via RPC over LNet to the metadata target (MDT).</para>
</glossdef>
</glossentry>
<glossentry xml:id="mdd">
<glossentry xml:id="nioapi">
<glossterm>NIO API</glossterm>
<glossdef>
- <para>A subset of the LNET RPC module that implements a library for
+ <para>A subset of the LNet RPC module that implements a library for
sending large network requests, moving buffers with RDMA.</para>
</glossdef>
</glossentry>
<glossentry xml:id="portal">
<glossterm>Portal</glossterm>
<glossdef>
- <para>A service address on an LNET NID that binds requests to a
+ <para>A service address on an LNet NID that binds requests to a
specific request service, such as an MDS, MGS, OSS, or LDLM. Services
may listen on multiple portals to ensure that high priority messages
are not queued behind many slow requests on another portal.</para>
<glossentry xml:id="ptlrpc">
<glossterm>PTLRPC</glossterm>
<glossdef>
- <para>An RPC protocol layered on LNET. This protocol deals with
+ <para>An RPC protocol layered on LNet. This protocol deals with
stateful servers and has exactly-once semantics and built in support
for recovery.</para>
</glossdef>
<glossentry xml:id="remotedirectories" condition='l24'>
<glossterm>Remote directory</glossterm>
<glossdef>
-
<para>A remote directory describes a feature of
+ <para>A remote directory describes a feature of
Lustre where metadata for files in a given directory may be
stored on a different MDT than the metadata for the parent
directory. Remote directories only became possible with the
<glossentry xml:id="routing">
<glossterm>Routing</glossterm>
<glossdef>
- <para>LNET routing between different networks and LNDs.</para>
+ <para>LNet routing between different networks and LNDs.</para>
</glossdef>
</glossentry>
<glossentry xml:id="rpc">
<glossentry xml:id="stripeddirectory" condition='l28'>
<glossterm>Striped Directory</glossterm>
<glossdef>
-
<para>A striped directory is a feature of Lustre
+ <para>A striped directory is a feature of Lustre
software where metadata for files in a given directory are
distributed evenly over multiple MDTs. Striped directories
are only available in Lustre software version 2.8 or later.
utilization of many OSTs. For more information about wide striping, see
<xref xmlns:xlink="http://www.w3.org/1999/xlink"
- linkend="section_syy_gcl_qk" />.</para>
+ linkend="wide_striping" />.</para>
</glossdef>
</glossentry>
</glossdiv>
git://git.whamcloud.com / doc / manual.git / blobdiff