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JBOD (just a bunch of disks or just a bunch of drives) is an architecture using multiple hard drives exposed as individual devices.Hard drives may be treated independently or may be combined into one or more logical volumes using a volume manager like LVM or mdadm, or a device-spanning filesystem like btrfs; such volumes are usually called "spanned" or "linear | SPAN | BIG".
Dynamic volumes allow to adjust size and to add more free space either from the same disk or another physical disk. Striped volumes (RAID 0) and spanned volumes (SPAN) are dynamic volumes using space on different physical disks. In Windows XP, spanned volume can use a maximum of 32 physical disks. [7]
An administrator may format the disk array as a RAID and then partition this RAID into several separate storage-volumes. To represent each volume, a SCSI target is configured to provide a logical unit. Each SCSI target may provide multiple logical units and thus represent multiple volumes, but this does not mean that those volumes are ...
Creates a new, empty device mapping. Maps it (with the "linear" target) onto the data areas of the PVs the logical volume belongs to. To move an online logical volume between PVs on the same Volume Group, use the "pvmove" tool: Creates a new, empty device mapping for the destination. Applies the "mirror" target to the original and destination maps.
Disc spanning is a feature of CD and DVD burning software that automatically spreads a large amount of data across many data discs if the data set's size exceeds the storage capacity of an individual blank disc.
A new episode of Vanderpump Rules premieres tonight, Feb. 6 at 8 p.m. ET/PT on Bravo. New episodes of the show will drop the day after they premiere on Peacock. New episodes of the show will drop ...
The row space of this matrix is the vector space spanned by the row vectors. The column vectors of a matrix. The column space of this matrix is the vector space spanned by the column vectors. In linear algebra, the column space (also called the range or image) of a matrix A is the span (set of all possible linear combinations) of its column ...
Federal health advisers voted overwhelmingly against an experimental treatment for Lou Gehrig’s disease at a Wednesday meeting prompted by years of patient efforts seeking access to the unproven ...