What is GPFS file system Linux?
GPFS (General Parallel File System, brand name IBM Spectrum Scale) is a high-performance clustered file system software developed by IBM. It can be deployed in shared-disk or shared-nothing distributed parallel modes, or a combination of these.
Is GPFS NFS?
Note: GPFS on Windows does not provide NFS integration. See the Authorizing protocol users topic for information on ACLs for protocol users.
How do I open a GPFS file in Linux?
You can use the mmstartup and mmshutdown commands to start and stop GPFS™ on new or existing clusters. For existing GPFS clusters, before starting GPFS, ensure that you have: Verified the installation of all prerequisite software.
How do you access the spectrum scale GUI?
The sensor package must be installed on any additional node that you want to monitor. All sensors must point to the collector node. Start the GUI by issuing the systemctl start gpfsgui command. Note: The default user name and password to access the IBM Spectrum Scale management GUI is admin and admin001 respectively.
What is GPFS storage?
The GPFS Storage Server is a high-performance, GPFS network storage disk (NSD) solution that is made up of one or more GSS building blocks. Each GSS 2.0 building block contains the following hardware and software components: IBM System x x3650 M4 servers. 128 GB of memory, with the option to upgrade to 256 GB.
What is a GPFS snapshot?
A snapshot is a copy of the changed data in the active files and directories of a GPFS file system or fileset.
Is ZFS an operating system?
The Z File System (ZFS) is an open-source logical volume manager and file system created by Sun Microsystems, originally for its Solaris operating system. It is now used in many operating systems including FreeBSD, NetBSD, Mac OS X Server 10.5 and various Linux distributions through ZFS-FUSE.
What can you do with a GPFS file system?
Adds disks to a GPFS file system. Adds nodes to a GPFS cluster. Adds a pdisk to a GPFS Native RAID recovery group. Can be used to manage home caching behavior and mapping of gateways and home NFS exported servers. Can be used to control caching behavior, check the state of the cache, and prefetch data.
What are the changes in GPFs control?
Controls the type of GPFS license associated with the nodes in the cluster. Assigns a new file system manager node or cluster manager node. Changes node attributes. Changes user-defined node classes. Changes Network Shared Disk (NSD) configuration attributes. Changes GPFS Native RAID pdisk states.
What are the functions of the GPFs queries tool?
Queries available file space on a GPFS file system. Displays diagnostic information about the internal GPFS state on the current node. Discovers components and adds them to the GPFS cluster configuration. Creates or changes a GPFS access control list. Sets quota limits. Retrieves the information needed to move a file system to a different cluster.
What is the difference between GPFS and Hadoop?
GPFS has full Posix filesystem semantics. GPFS distributes its directory indices and other metadata across the filesystem. Hadoop, in contrast, keeps this on the Primary and Secondary Namenodes, large servers which must store all index information in-RAM.