DISK ARRAY SUB SYSTEMS

Brand	Owner	Address	Description
RAIDTEC	PLASMON PLC	Whiting Way, Melbourn Royston SG8 6EN United Kingdom	disk array sub-systems; namely, data storage units for file server computers used in networks of personal computers, the data storage units including multiple hard disk drives;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A disk array controller reliably detects disk drive power-on-reset events that may cause a disk drive that has uncommitted write data stored in its cache to lose such data. The methods for detecting the power-on-reset events include operating the disk drives in an ATA security mode in which a power-on-reset of a disk drive will cause the drive to enter a locked state in which data transfer commands are aborted; and tracking power cycle count attributes of the disk drives over time. When a disk drive power-on-reset event is detected, the disk array may be efficiently restored to an operational state by re-executing or "replaying" a set of write commands that are cached within the disk array controller. The invention is also applicable to single-disk-drive storage systems.