St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat Log Page Attributes (0x03): S/H_per_NS Cmd_Eff_Lg Optional NVM Commands (0x001f): Comp Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat Optional Admin Commands (0x0017): Security Format Frmw_DL Self_Test Local Time is: Thu May 27 21:57:29 2021 JSTįirmware Updates (0x16): 3 Slots, no Reset required This will give you a lot of information: smartctl 7.2 r5155 (local build)Ĭopyright (C) 2002-20, Bruce Allen, Christian Franke, = START OF INFORMATION SECTION = Query a storage medium, for example, an NVMe device: sudo smartctl -all /dev/nvme0n1 ![]() Install the smartmontools package: sudo apt install smartmontools The smartmontools package is the one I usually reach for to display storage device info. If you would like to build a graph as seen in Figure 2, you could write a little data collection utility that reads the SMART information off your storage device and records it in a database (or anywhere you see fit, really). Many device controllers will have different thresholds, but a 0 count does not mean that the drive is without errors, just as a vehicle with 1,000,010km on the odometer is not "fresh off the assembly line". The counters are reset like an odometer rolling over after running out of integers. If the count reset does not improve the health of the disk, or if it does not affect the seek rate after the count is reset, then I guess this is fine. Figure 2 (if my understanding is correct) is the total time that the drive has taken to locate a specific piece of stored data without the count rest at day 235. I am wondering if I can visualise the seek error rate as in Figure 2. does resetting just reset the count or does it perhaps mean that the disks seek rate is restored to as good as new at day 235? ![]() Is this incremental count just the total time that the drive has taken to locate a specific piece of stored data?ĭoes anyone know why this count is reset and if it means anything? I.e. In Figure 1 the seek rate for the hard drive increases up to and including day 234. ![]() This is evident in some of the BackBlaze hard drives (see Figure 1 below). I have read that seek errors is an incremented count of track seeks and that the count resets to zero after a fixed number of thousands of seek commands.
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