Project Overview:
I propose the creation of a project on opensolaris.org, to bring to the
community Solaris host-based data services; namely the Storage Archive
Manager or SAM and the Solaris shared file system QFS. These data
services exist today and are distributed commercially by Sun as the Sun
StorageTek Storage Archive Manager and Sun StorageTek QFS shared file
system. The software is delivered unbundled commercially for Solaris 9
and 10, but also is compiled for and runs on Open Solaris.
Project Description:
Although SAM/QFS are positioned and marketed as two separate data
services, they are really a single code base. SAM is the Storage Archive
Manager component and consists of a policy based HSM. QFS is a shared or
cluster file system for Solaris, and supports shared QFS Linux clients.
The QFS shared file system is a high-performance, 64-bit Solaris file
system. This file system ensures that data is available at device-rated
speeds when requested by one or more users. The QFS shared file system
supports from 1 to 128 compute nodes to allow file sharing to scale with
computational needs. QFS is ideally suited for Oracle RAC users and
applications with a streaming I/O profile
SAM is tightly integrated with QFS, and adds the features of a storage
archive manager to QFS. A SAM-QFS file system configuration allows data
to be archived to and retrieved from local or remote automated tape
libraries or disk at device-rated speeds. SAM manages QFS data online,
nearline, and offline automatically and in a manner that is transparent
to the user or application. Users read and write files to a SAM-QFS file
system as though all files were on primary storage. In addition, SAM
protects QFS file system data continually, automatically, and
unobtrusively. Multiple file copies can be made to many media types and
storage tiers in a standard OPEN format. This minimizes the requirement
for traditional back-up only and provides fast disaster recovery in an
effective long-term data storage solution. A SAM-QFS file system
configuration is especially suited to data-intensive applications that
require a scalable and flexible storage solution, superior data
protection, and fast disaster recovery. This solution also includes an
integrated non-mirroring volume manager for performance, automated and
flexible policy management, and browser-based management tools.
Community Involvement:
By open sourcing SAM and QFS software, we will enhance OpenSolaris as a
storage platform. Those that adopt OpenSolaris will benefit from an open
storage platform, while providing valuable feedback to the commercially
distributed software sold and supported by Sun. We plan to develop our
next release of SAM/QFS in the Open Source community, so we invite
community feedback on our work in progress. We intend to make periodic
(every few weeks) code drops to the project page for download by the
community. The longer term strategy will be to migrate from CVS to
Mercurial as a source control tool and make the repository part of the
open source project. This will allow the community to comment on
features and our code base as we work through the development phase of
the next and future commercial releases of this software.Additionally,
it will allow for community contributions.
A complete set of the Sun StorageTek SAM and Sun StorageTek QFS
administration guides can be found at:
http://docs.sun.com/app/docs/coll/QFS4_6
http://docs.sun.com/app/docs/coll/SAM4_6
Community Leaders:
Svati Chandra Narula
Ted Pogue
Harriet Coverston
Cindy Dyrness
SAM/QFS - New Solaris Storage Group
___
opensolaris-discuss mailing list
opensolaris-discuss@opensolaris.org
