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The database and FUSE-based Proxmox Cluster file system (pmxcfs [31]) makes it possible to perform the configuration of each cluster node via the Corosync communication stack with SQLite engine. [13] Another HA-related element in PVE is the distributed file system Ceph, which can be used as a shared storage for guest machines. [32]
Waiting for Guffman is a 1996 American mockumentary comedy film written by Christopher Guest and Eugene Levy, and directed by Guest. The film's ensemble cast includes Guest, Levy, Catherine O'Hara, Fred Willard, Bob Balaban and Parker Posey. The film's title is a reference to Samuel Beckett's play Waiting for Godot. As in the other mockumentary ...
The system automatically notices that the disk has changed and updates the mount point contents to reflect the new medium. Similar functionality is found on Windows machines. An automounter will automatically mount a file system when a reference is made to the directory atop which it should be mounted. This is usually used for file systems on ...
As an example application of union mounting, consider the need to update the information contained on a CD-ROM or DVD. While a CD-ROM is not writable, one can overlay the CD's mount point with a writable directory in a union mount. Then, updating files in the union directory will cause them to end up in the writable directory, giving the ...
A "ready" or "waiting" process has been loaded into main memory and is awaiting execution on a CPU (to be context switched onto the CPU by the dispatcher, or short-term scheduler). There may be many "ready" processes at any one point of the system's execution—for example, in a one-processor system, only one process can be executing at any one ...
This feature is also frequently called (and abbreviated) as visual message waiting indicator (VMWI). A VMWI, as defined in Telcordia GR-1401-CORE , is a stored program controlled switching (SPCS) system feature that activates and deactivates a visual indicator on customer-premises equipment (CPE) to notify the customer that new messages are ...
The total of zero or more sites that are prepared to abort or any sites waiting V a. The first rule ensures that a transaction cannot be committed and aborted at the same time. The next two rules indicate the votes that a transaction has to obtain before it can terminate one way or the other.
When the processor needs to access external memory, it starts placing the address of the requested information on the address bus. It then must wait for the answer, that may come back tens if not hundreds of cycles later. Each of the cycles spent waiting is called a wait state. Wait states are a pure waste of a processor's performance.