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AssigneeLSI Corporation
InventorsCharles E. Nichols, Drew M. Marti, William G. Deitz
Estimating the term…
Apparatus and methods for controllably spinning up disk drives in a storage system. A storage system includes a first portion of disk drives that support controllable sequencing of disk drive spin-up and a second portion that do not support controllable sequencing of spin-up. Disk drives in the first portion are configured to be powered on with the storage system and are controllably spun up by issuing appropriate commands to each disk drive. Disk drives in the second portion are configured initially powered off when the storage system is powered on and have power controllably applied thereto to cause spin-up of each disk drive. Disk drives in the first portion may include SAS disk drives and SATA disk drives that support staggered spin-up features. Disk drives in the second portion may include SATA disk drives that do not support staggered spin-up.
A method of sequencing the spin-up of a plurality of disk drives in a storage system, the plurality of disk drives including at least one serial attached SCSI (“SAS”) disk drive and at least one serial advanced technology attachment (“SATA”) disk drive, the method comprising:
A storage system comprising:
A method operable in a storage system having a serial attached SCSI (“SAS”) storage controller coupled to a plurality of disk drives including at least one SAS disk drive and at least one serial advanced technology attachment (“SATA”) disk drive, the plurality of disk drives comprising a first portion of disk drives that support controlled spin-up following power-up and a second portion of disk drives that do not support controlled spin-up following power-up, the method comprising:
Dependencies are inferred from the claim text.