ABOUT CACHE DEVICE DISK FREE

230000000875 corresponding Effects 0.000 claims abstract description 20.

Almost half of the time the serverвЂ™s load avarage is below 0.1. Disk IO time and Disk READ/WRITE IOPS for the past 7 days (lvm cache) SCREENSHOT 3) Around 200Mbits at peak and load under 0.2 in 95. 230000015654 memory Effects 0.000 claims abstract description 99 SCREENSHOT 2) The fast (cache) device sda6 has 25 times the slow device sdb1 (hard disk drive) reads and writes.Assignors: CHANG, YUAN-HAO, HSIEH, JEN-WEI, KUO, TEI-WEI, WU, PO-LIANG, YANG, CHENG-CHIH Publication of US20080162795A1 publication Critical patent/US20080162795A1/en Application granted granted Critical Publication of US7975095B2 publication Critical patent/US7975095B2/en Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links The 350 had a single arm with two read/write heads, one facing up and the other down, that moved both. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). The first production IBM hard disk drive, the 350 disk storage, shipped in 1957 as a component of the IBM 305 RAMAC system.It was approximately the size of two medium-sized refrigerators and stored five million six-bit characters (3.75 megabytes) on a stack of 52 disks (100 surfaces used). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to TW095149547 priority Critical Priority to TW95149547A priority patent/TWI329860B/zh Application filed by Genesys Logic Inc filed Critical Genesys Logic Inc Assigned to GENESYS LOGIC, INC.

ABOUT CACHE DEVICE DISK FREE

Option -l 100FREE uses the how available free space on the device. A cache device comprises a hard disk, cache control unit and at least one flash memory, whereby the cache control unit controlling and regulating the flash memory as the hard disk cache device. Then create the cache logical volume the main device is the slow one like hard disk drive and attach the cache-pool device to it tuning the cache mode. Original Assignee Genesys Logic Inc Priority date (The priority date is an assumption and is not a legal conclusion. First create the cache-pool, which consists of the cache device the fast device like SSD. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor Jen-Wei Hsieh Po-liang Wu Yuan-Hao Chang Tei-Wei Kuo Cheng-Chih Yang Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US11/963,173 Other versions US7975095B2 Google Patents US20080162795A1 - Hard disk cache device and method US20080162795A1 - Hard disk cache device and method

About cache device disk