Storage apparatus, maintenance support method, and maintenance support program
AssigneeHitachi, Ltd.
InventorsHideyuki Koseki, Hiroki Fujii, Akira Deguchi, Akira Yamamoto
Life of this patent
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Abstract
The efficiency of the maintenance of a storage apparatus including a plurality of flash drives can be enhanced. In a storage apparatus including a plurality of SSDs and a CPU, the CPU specifies, based on lifetimes of the SSDs depending on amounts of data written to the SSDs, the SSD to be replaced on a scheduled maintenance date, gives notice of the SSD specified to be replaced, and copies data in the SSD to be replaced to another SSD by the scheduled maintenance date on which the replacement is to be performed.
Claims9
A storage apparatus comprising:
- a plurality of flash drives;
- and
- a processor,
- wherein the processor is configured to:
- specify, based on lifetimes of the flash drives depending on amounts of data written to the flash drives, a flash drive of the flash drives to be replaced on a first scheduled maintenance date;
- give notice of the flash drive specified to be replaced;
- copy data in the flash drive to be replaced to another an added flash drive by the first scheduled maintenance date on which the replacement is to be performed;
- prior to the first scheduled maintenance date, specify an other flash drive of the flash drives that is to be subjected to replacement on a second scheduled maintenance date after the first scheduled maintenance date, and then give notice of the other flash drive by the first scheduled maintenance date;
- and
- copy data in the other flash drive to be replaced on the second scheduled maintenance date to the added flash drive added to the storage apparatus on the first scheduled maintenance date, before the second scheduled maintenance date, and replace the other flash drive to be replaced, with the added flash drive.
A maintenance support method for a storage apparatus including a plurality of flash drives and a processor,
- the maintenance support method comprising:
- specifying, based on lifetimes of the flash drives depending on amounts of data written to the flash drives, a flash drive of the flash drives to be replaced on a first scheduled maintenance date;
- giving notice of the flash drive specified to be replaced;
- copying data in the flash drive to be replaced to an added flash drive by the first scheduled maintenance date on which the replacement is to be performed;
- prior to the first maintenance date, specifying an other flash drive of the flash drives that is to be subjected to replacement on a second scheduled maintenance date after the first scheduled maintenance date, and then giving notice of the other flash drive by the first scheduled maintenance date;
- and
- copying data in the other flash drive to be replaced on the second scheduled maintenance date to the added flash drive added to the storage apparatus on the first scheduled maintenance date, before the second scheduled maintenance date, and replacing the other flash drive to be replaced, with the added flash drive.
A non-transitory machine-readable storage medium encoded with a maintenance support program that is executed by a computer forming a storage apparatus including a plurality of flash drives and a processor,
- the maintenance support program causing the computer to:
- specify, based on lifetimes of the flash drives depending on amounts of data written to the flash drives, a flash drive of the flash drives to be replaced on a first scheduled maintenance date;
- give notice of the flash drive specified to be replaced;
- copy data in the flash drive to be replaced to an added flash drive by the first scheduled maintenance date on which the replacement is to be performed;
- prior to the first scheduled maintenance date, specify an other flash drive of the flash drives that is to be subjected to replacement on a second scheduled maintenance date after the first scheduled maintenance date, and then give notice of the other flash drive by the first scheduled maintenance date;
- and
- copy data in the other flash drive to be replaced on the second scheduled maintenance date to the added flash drive added to the storage apparatus on the first scheduled maintenance date, before the second scheduled maintenance date, and replace the other flash drive to be replaced, with the added flash drive.
Dependencies are inferred from the claim text.