发明名称 |
APPARATUS AND METHOD FOR REALLOCATING LOGICAL TO PHYSICAL DISK DEVICES USING A STORAGE CONTROLLER WITH ACCESS FREQUENCY AND SEQUENTIAL ACCESS RATIO CALCULATIONS AND DISPLAY |
摘要 |
A storage controller calculates an access frequency of each logical disk; that is selects a first logical disk device of which the access frequency exceeds a first predetermined value, the first logical disk device being allocated to a first physical disk device; selects a second logical disk device which has the access frequency equal to or less than a second predetermined value, the second logical disk device being allocated to a second physical disk device; and reallocates the first and second logical device; and reallocates the first and second logical devices to the second and the first physical disk device, respectively. |
申请公布号 |
US2009276569(A1) |
申请公布日期 |
2009.11.05 |
申请号 |
US20090501694 |
申请日期 |
2009.07.13 |
申请人 |
HITACHI, LTD. |
发明人 |
YAMAMOTO YASUTOMO;YAMAMOTO AKIRA;SATOH TAKAO |
分类号 |
G06F12/00;G06F12/08;G06F3/06;G06F11/10;G06F11/20;G06F12/16;G11B20/12 |
主分类号 |
G06F12/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|