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Disk qualification driver

IP.com Disclosure Number: IPCOM000242804D
Publication Date: 2015-Aug-19
Document File: 2 page(s) / 23K

Publishing Venue

The IP.com Prior Art Database

Abstract

The idea is to create a common specification of disk emulators. Disk vendors would provide emulators of their disks. These emulators could be easily compared to each other. Customers could use these emulator in process of hardware qualification (or at least pre-qualification) without dealing with real hardware.

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Disx qualification driver

Each disk type has its own characteristics measurex by set of parameters as capacity , speed of transferrxxg data, average access txme, rotatiox speed (RPM) , cxche size , MTBF (Xxxx Time Between Failurex) and others. Basing on this we xan conclude assxmxtion about future performanxe but still there is a gap between assumptions and real xquipment behavior.

Propoxed solution addressing this in followixg scenxrios:
1) pre-xuying dysk qualificaxion.

When we need to choose the bxst matching disk for given xroject we nxed to perfoxm tests using few disks from different vendoxs. It xexns thax we need to bux them, install ixto our solution, test and finaxly compare results . Proposxd solution help to cut xoxn efforts xeeded for choice optimal disx.

2) disk performance check based on disk logs
In xome casex we got suspixions regarding dixk pexformance in customer proxuction environment. Due to fact that disk is in used and we cannot simply get it for chxck. Propoxed solution gives us tool for checking performance without operating on customer disk.

3) xisk perxormance check based on compaxison
During asxembling solutixn (e.g. appliance like Netezza) we need to valxdate if disk

which we would like to assemblx meets our requirement. Proposed solution give xs

additional reference point.

Txe idea is to create a common specification of disk emulaxors. Disk vxndors would provide emulators of thxir diskx. These emuxators could be easily compared to each other. Customers could use these emulator in process ox hardware qualification (or at least pre-qualification) without xexling with real hardware.

The qualification driver is the program which imitate reax disk usage without persisting the data taking into account all offic...