Distributed directory method and structure for direct access sto

Details Distributed directory method and structure for direct access sto Distributed directory method and structure for direct access sto

1995-06-07

1996-07-16

Kulik, Paul V.

Boots, shoes, and leggings

395600, 364DIG1, 3642604, 3642606, 3642821, 3642823, G06F 1730

Patent

active

055376584

ABSTRACT:
A distributed directory structure and method are provided for writing directory information for compressed data on a direct access storage device (DASD). DASD includes a plurality of compression groups for storing compressed data. A micro directory table is written within each of the compression groups for the corresponding compressed data in the compression group. Compressed data and a directory update are written with a single write operation. A macro directory table is written in one area of the DASD. The macro directory table includes directory information used for translating a logical address to a physical base address for each compression group. The micro directory table includes directory information used for translating a logical address for a requested data page to a physical page address and page length within the compression group.

REFERENCES:
patent: 5031124 (1991-07-01), Bosinoff et al.
patent: 5113512 (1992-05-01), Miki et al.
patent: 5212786 (1993-05-01), Sathi
patent: 5237675 (1993-08-01), Hannon, Jr.
patent: 5241672 (1993-08-01), Slomcenski et al.
patent: 5315655 (1994-05-01), Chaplin
patent: 5349577 (1994-09-01), Mikamo
patent: 5357607 (1994-10-01), Sathi et al.
patent: 5388093 (1995-02-01), Yoshida et al.
patent: 5394534 (1995-02-01), Kulakowski et al.
patent: 5463772 (1995-10-01), Thompson et al.
Brodie et al. Pat. Appln. Ser. No. 08/343,316 filed Nov. 22, 1994--Method and Means for Managing Linear Mapped Address Spaces Storing Compressed Data at the Storage Subsystem Control Unit or Device Level.

Affiliated with

Also associated with

Rating

Distributed directory method and structure for direct access sto does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Distributed directory method and structure for direct access sto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed directory method and structure for direct access sto will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1793717