Title:
STORAGE SYSTEM
Document Type and Number:
Japanese Patent JP3264465
Kind Code:
B2
Abstract:
PURPOSE: To easily extend and vary the scale of the storage system of a large- sized computer and to maintain the system by degeneration and hot-line insertion and extraction.
CONSTITUTION: Plural host adapters (host-side interface) 1 connected to a host CPU, plural disk adapters (storage device side interface) 2 connected to an array disk 5, and cache memories 3 for temporary storage that are shared by those adapters are fitted onto common buses 4 that are shaved by those adapters and cache memories in a free insertion and extraction state. For an extension of the scale, adapters 1 and 2 and cache memories 3 which are as many as required are only added. The adapters 1 and 2, cache memories, and common buses are duplexed to enable degenerative operation in the case of a fault, and the joint parts between the adapters and cache memories, and common buses are so constituted that hot-line insertion and extraction are enabled and maintenance inspection and component replacement can be done without stopping the system.
Inventors:
Tatsuya Ninomiya
Hidefumi Masuzaki
Hiroyuki Kurosawa
Naoya Takahashi
Yasuo Inoue
Hidehiko Iwasaki
Masayuki Hoshino
Soichi Isono
Hidefumi Masuzaki
Hiroyuki Kurosawa
Naoya Takahashi
Yasuo Inoue
Hidehiko Iwasaki
Masayuki Hoshino
Soichi Isono
Application Number:
JP16202193A
Publication Date:
March 11, 2002
Filing Date:
June 30, 1993
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G06F3/06; G06F11/16; G06F11/20; G06F12/08; G06F13/12; G06F11/00; G06F11/10; G11C29/00; (IPC1-7): G06F3/06; G06F12/08; G06F13/12
Domestic Patent References:
| JP4211849A | ||||
| JP553936A | ||||
| JP5134945A | ||||
| JP3245246A | ||||
| JP4155466A | ||||
| JP331919A | ||||
| JP4284523A | ||||
| JP460846A |
Attorney, Agent or Firm:
Kenjiro Take