Disk storage system with two disks per slot and method of operation thereof
AssigneePromise Technology, Inc.
InventorRaghuraman Govindasamy
Life of this patent
Estimating the term…
Abstract
A method of operation of a disk storage system includes: providing a disk storage controller; coupling a storage carrier, having a first physical disk and a second physical disk, to the disk storage controller; detecting a failure of the first physical disk; writing a non-volatile memory to show the second physical disk is unavailable when the storage carrier is de-coupled from the disk storage controller; and logging a first written stripe in the non-volatile memory for update when the second physical disk is not available including updating only the written stripe in the second physical disk when the storage carrier is again coupled to the disk storage controller.
Claims20
A method of operation of a disk storage system comprising:
- providing a disk storage controller;
- coupling a storage carrier, having a first physical disk and a second physical disk, to the disk storage controller;
- detecting a failure of the first physical disk;
- writing a non-volatile memory to show the second physical disk is unavailable when the storage carrier is de-coupled from the disk storage controller;
- and
- logging a first written stripe in the non-volatile memory for update when the second physical disk is not available including updating only the written stripe in the second physical disk when the storage carrier is again coupled to the disk storage controller.
A method of operation of a disk storage system comprising:
- providing a disk storage controller;
- coupling a storage carrier, having a first physical disk and a second physical disk, to the disk storage controller including coupling an additional storage carrier;
- detecting a failure of the first physical disk;
- writing a non-volatile memory to show the second physical disk is unavailable when the storage carrier is de-coupled from the disk storage controller;
- and
- logging a first written stripe and a subsequent written stripe in the non-volatile memory for update when the second physical disk is not available including updating only the first written stripe and the subsequent written stripe in the second physical disk when the storage carrier is again coupled to the disk storage controller.
A disk storage system comprising:
- a disk storage controller;
- a storage carrier, having a first physical disk and a second physical disk, coupled to the disk storage controller;
- a non-volatile memory written to show the first physical disk failed and the second physical disk is unavailable when the storage carrier is de-coupled from the disk storage controller;
- and
- a first written stripe logged in the non-volatile memory for update when the second physical disk is not available including only the first written stripe in the second physical disk rebuilt when the storage carrier is again coupled to the disk storage controller.
Dependencies are inferred from the claim text.