Custom Query (1452 matches)

I would like to prepare a patch to implement '--json' cmd option, as mentioned in ticket #766. I'm new to this project and would appreciate your help.

1. Is it okay if I use C++11 features, even if it as little as "auto"?

2. What's your opinion about using a JSON library? (specifically this one - ​JSON for Modern C++)

3. I wish to create a data structure to hold the smart data, and print it when it's completely populated.

Do you have insights about how the data structure should look like, considering hierarchy, data order, and which containers to use?

When looking at the first chunks of output for SATA I was wondering how to represent the data, so it would be easy to traverse and print. The general idea is to have a container to represent each section, for example:

struct smart_data {

map<string, string> info_section; map<string, string> smart_data_section; vector<map<string,string>> vendor_specific_attr; more containers go here

};

Is there a certain format you prefer it to be represented?

4. Is there a way to mock output from devices I don't have (such as SAS)? I wish to test this output but I don't have all of the supported disks out there...

Many thanks!

For my Crucial_CT525MX300SSD1 smartctl displays some unknown attributes. The Crucial Windows tool is disable to display a text for the attributes:

1	Raw Read Error Rate	0	Errors/Page
5	Reallocated NAND Block Count	0	NAND Blocks
9	Power On Hours Count	4105	Hours
12	Power Cycle Count	162	Power Cycles
171	Program Fail Count	0	NAND Page Program Failures
172	Erase Fail Count	0	NAND Block Erase Failures
173	Block Wear-Leveling Count	1	Erases
174	Unexpected Power Loss Count	36	Unexpected Power Loss events
180	Unused Reserved Block Count	1944	Blocks
183	SATA Interface Downshift	0	Downshifts
184	Error Correction Count	0	Correction Events
187	Reported Uncorrectable Errors	0	ECC Correction Failures
194	Enclosure Temperature	38	Current Temperature (C)
		42	Highest Lifetime Temperature (C)
196	Reallocation Event Count	0	Events
197	Current Pending ECC Count	0	ECC Counts
198	SMART Off-line Scan Uncorrectable Errors	0	Errors
199	Ultra-DMA CRC Error Count	0	Errors
202	Percentage Lifetime Remaining	100	% Lifetime Remaining
206	Write Error Rate	0	Program Fails/MB
210	RAIN Successful Recovery Page Count	0	TUs successfully recovered by RAIN
246	Cumulative Host Sectors Written	117699770	512 Byte Sectors
247	Host Program Page Count	3678152	NAND Page
248	FTL Program Page Count	1287065	NAND Page

Please, add support for attributes 171-174, 202-248 with the texts above.

My current version is smartctl 6.6 2016-05-31 r4324.

Attached is a smartctl output of a 32Gb SSD device with device model LDLC. Is was pre-installed in a Gigabyte BRIX mini PC model Celeron N2807 and runs Ubuntu 20.04 LTS.

I have no certainty what the unknown attributes 160-167 are, but several of these are found in the current header file for other types of SSD.