Hierarchical storage management from a mirrored file system on a

Details Hierarchical storage management from a mirrored file system on a Hierarchical storage management from a mirrored file system on a

1997-04-01

1999-12-07

Thai, Tuan V.

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

711111, 711112, 711114, 709214, 709216, 709249, 370401, 370403, 370404, 370405, G06F 1216, G06F 1300, H04J 302

Patent

active

060000201

ABSTRACT:
A system for hierarchical data storage management and transparent data backup in a high speed, high volume Fibre Channel Arbitrated Loop environment comprising first and second Fibre Channel Arbitrated Loops, each coupling a Transaction Server and backup HSM server to high speed disk drives and mirrored high speed disk drives respectively. The two loops are coupled by a Bridge compatible with the Fibre Channel Arbitrated Loop protocol which forwards write transactions directed to the mirrored disk drives from the first loop the second but keeps read transaction from the Transaction Server to the high speed disk drives on the first loop isolated from backup and HSM transactions occurring on the second loop between the backup HSM server, the mirrored disk drives and backup storage devices coupled to the backup HSM server.

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