Disk array apparatus

Details Disk array apparatus Disk array apparatus

Filed on

2007-02-06

Date issued

2007-02-06

Examiner

Peugh, Brian R. (Department: 2187)

Patent Class

Electrical computers and digital processing systems: memory

SubClass

Storage accessing and control

SubSubClass

Control technique

Other Related Categories

C711S171000, C714S020000

Type

Reexamination Certificate

Status

active

Patent number

10853289

Description

ABSTRACT:
The usage amount of a pool area is avoided from becoming equal to 100%, thereby preventing all snapshot images from being crashed. There is provided a disk-array apparatus including a control processor. Here, the control processor controls a data reading/writing from/into a first logical volume created using a memory area of plural disk drives, and controls past data such that the past data is written into a second logical volume as differential data on each generation basis, the past data being stored into the first logical volume, and manages the differential data. If the amount of the differential data stored into the second logical volume has exceeded a first predetermined value, the control processor determines a generation of the differential data to be deleted from among the differential data written into the second logical volume. The control processor deletes the differential data of the generation determined.

REFERENCES:
patent: 5403639 (1995-04-01), Belsan et al.
patent: 6260125 (2001-07-01), McDowell
patent: 6374266 (2002-04-01), Shnelvar
patent: 6442706 (2002-08-01), Wahl et al.
patent: 6473775 (2002-10-01), Kusters et al.
patent: 6584551 (2003-06-01), Huber
patent: 6694413 (2004-02-01), Mimatsu et al.
patent: 2004/0030951 (2004-02-01), Armangau
patent: 2004/0068636 (2004-04-01), Jacobson et al.
patent: 2004/0268067 (2004-12-01), Yamagami
patent: 2005/0027819 (2005-02-01), Nakano et al.
patent: 1 349 089 (2003-03-01), None
patent: 1 349 089 (2003-03-01), None
patent: 2001306407 (2000-04-01), None
patent: 2002-278819 (2001-03-01), None
“SANworks by Compaq Virtual Replicator System Administrator's Guide”, Product Version 3.0, Product No. AA-RMJFE-TE, 1st Edition (Jan. 2002), in Japanese, 2 pages, and partial translation into English, 2 pages.

Affiliated with

Also associated with

Rating

Disk array apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk array apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk array apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3877035