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--></style></head><body lang="EN-US" link="#0563C1" vlink="#954F72"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">Hi,</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">Our customer is running some extensive disk tests on the Transcend SSD420K 512GB MLC SSD with 750TB (TBW). They are running CentOS Linux 7.3 and when I asked then what they were doing for a workload they said:</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal" style="text-indent:.5in"><span style="color:#1f497d">A heavy Read/Write disk load was running at the time from a KVM Virtual Machine. Before the load started the write cache was disabled on the drive and Native Command Queueing was disabled.</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">The problem is that they are using Linux <i>smartmon</i> tools and they first received this message on the two of the system they tried this extensive disk test on:</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="color:#1f497d"> [134.111.122.26-node1 ~]$ zgrep "Currently unreadable" /var/log/message*</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:18:34 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages:Dec 15 22:48:22 node1 smartd[1133]: Device: /dev/sda [SAT], No more Currently unreadable (pending) sectors, warning condition reset after 1 email</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:18:24 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 04:48:22 node1 smartd[1133]: Device: /dev/sda [SAT], No more Currently unreadable (pending) sectors, warning condition reset after 1 email</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:18:22 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 06:48:22 node1 smartd[1133]: Device: /dev/sda [SAT], No more Currently unreadable (pending) sectors, warning condition reset after 1 email</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:18:23 node1 smartd[1133]: Device: /dev/sda [SAT], 524288 Currently unreadable (pending) sectors</span></p><p class="MsoNormal"><span style="color:#1f497d">/var/log/messages.1.gz:Dec 15 21:48:22 node1 smartd[1133]: Device: /dev/sda [SAT], No more Currently unreadable (pending) sectors, warning condition reset after 1 email</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">I shared the SMART data from that SSD with Transcend and asked Transcend for help and they reported back to me:</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal" style="margin-left:.5in"><span style="color:#1f497d">With regards to the Hardware_ECC_Recovered high value of “354”, since the Reallocated_Sector_Ct and Read_Error_Rate return “0”, our team does not believe that the SSD is showing signs of depreciating health.</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="color:#0070c0">Below is the SMART data for this SSD. They have written about 78TB which is about 10% of the drives life I think?</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="color:#1f497d">smartctl 6.2 2017-02-27 r4394 [x86_64-linux-3.10.0-693.2.2.el7.x86_64] (local build)</span></p><p class="MsoNormal"><span style="color:#1f497d">Copyright (C) 2002-13, Bruce Allen, Christian Franke, <a href="http://www.smartmontools.org">www.smartmontools.org</a></span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">=== START OF INFORMATION SECTION ===</span></p><p class="MsoNormal"><span style="color:#1f497d">Model Family: SiliconMotion based SSDs</span></p><p class="MsoNormal"><span style="color:#1f497d">Device Model: TS512GSSD420K</span></p><p class="MsoNormal"><span style="color:#1f497d">Serial Number: D898940005</span></p><p class="MsoNormal"><span style="color:#1f497d">Firmware Version: O1225G</span></p><p class="MsoNormal"><span style="color:#1f497d">User Capacity: 512,110,190,592 bytes [512 GB]</span></p><p class="MsoNormal"><span style="color:#1f497d">Sector Size: 512 bytes logical/physical</span></p><p class="MsoNormal"><span style="color:#1f497d">Rotation Rate: Solid State Device</span></p><p class="MsoNormal"><span style="color:#1f497d">Device is: In smartctl database [for details use: -P show]</span></p><p class="MsoNormal"><span style="color:#1f497d">ATA Version is: ACS-2 (minor revision not indicated)</span></p><p class="MsoNormal"><span style="color:#1f497d">SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)</span></p><p class="MsoNormal"><span style="color:#1f497d">Local Time is: Mon Dec 18 15:59:17 2017 EST</span></p><p class="MsoNormal"><span style="color:#1f497d">SMART support is: Available - device has SMART capability.</span></p><p class="MsoNormal"><span style="color:#1f497d">SMART support is: Enabled</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">=== START OF READ SMART DATA SECTION ===</span></p><p class="MsoNormal"><span style="color:#1f497d">SMART overall-health self-assessment test result: PASSED</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">General SMART Values:</span></p><p class="MsoNormal"><span style="color:#1f497d">Offline data collection status: (0x02) Offline data collection activity</span></p><p class="MsoNormal"><span style="color:#1f497d"> was completed without error.</span></p><p class="MsoNormal"><span style="color:#1f497d"> Auto Offline Data Collection: Disabled.</span></p><p class="MsoNormal"><span style="color:#1f497d">Self-test execution status: ( 0) The previous self-test routine completed</span></p><p class="MsoNormal"><span style="color:#1f497d"> without error or no self-test has ever </span></p><p class="MsoNormal"><span style="color:#1f497d"> been run.</span></p><p class="MsoNormal"><span style="color:#1f497d">Total time to complete Offline </span></p><p class="MsoNormal"><span style="color:#1f497d">data collection: ( 57) seconds.</span></p><p class="MsoNormal"><span style="color:#1f497d">Offline data collection</span></p><p class="MsoNormal"><span style="color:#1f497d">capabilities: (0x71) SMART execute Offline immediate.</span></p><p class="MsoNormal"><span style="color:#1f497d"> No Auto Offline data collection support.</span></p><p class="MsoNormal"><span style="color:#1f497d"> Suspend Offline collection upon new</span></p><p class="MsoNormal"><span style="color:#1f497d"> command.</span></p><p class="MsoNormal"><span style="color:#1f497d"> No Offline surface scan supported.</span></p><p class="MsoNormal"><span style="color:#1f497d"> Self-test supported.</span></p><p class="MsoNormal"><span style="color:#1f497d"> Conveyance Self-test supported.</span></p><p class="MsoNormal"><span style="color:#1f497d"> Selective Self-test supported.</span></p><p class="MsoNormal"><span style="color:#1f497d">SMART capabilities: (0x0002) Does not save SMART data before</span></p><p class="MsoNormal"><span style="color:#1f497d"> entering power-saving mode.</span></p><p class="MsoNormal"><span style="color:#1f497d"> Supports SMART auto save timer.</span></p><p class="MsoNormal"><span style="color:#1f497d">Error logging capability: (0x01) Error logging supported.</span></p><p class="MsoNormal"><span style="color:#1f497d"> General Purpose Logging supported.</span></p><p class="MsoNormal"><span style="color:#1f497d">Short self-test routine </span></p><p class="MsoNormal"><span style="color:#1f497d">recommended polling time: ( 1) minutes.</span></p><p class="MsoNormal"><span style="color:#1f497d">Extended self-test routine</span></p><p class="MsoNormal"><span style="color:#1f497d">recommended polling time: ( 1) minutes.</span></p><p class="MsoNormal"><span style="color:#1f497d">Conveyance self-test routine</span></p><p class="MsoNormal"><span style="color:#1f497d">recommended polling time: ( 1) minutes.</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">SMART Attributes Data Structure revision number: 1</span></p><p class="MsoNormal"><span style="color:#1f497d">Vendor Specific SMART Attributes with Thresholds:</span></p><p class="MsoNormal"><span style="color:#1f497d">ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE</span></p><p class="MsoNormal"><span style="color:#1f497d"> 1 Raw_Read_Error_Rate 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d"> 5 <b>Reallocated_Sector_Ct</b> 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d"> 9 Power_On_Hours 0x0000 100 100 000 Old_age Offline - 600</span></p><p class="MsoNormal"><span style="color:#1f497d">12 Power_Cycle_Count 0x0000 100 100 000 Old_age Offline - 26</span></p><p class="MsoNormal"><span style="color:#1f497d">160 Uncorrectable_Error_Cnt 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">161 Valid_Spare_Block_Cnt 0x0000 100 100 000 Old_age Offline - 115</span></p><p class="MsoNormal"><span style="color:#1f497d">163 Initial_Bad_Block_Count 0x0000 100 100 000 Old_age Offline - 50</span></p><p class="MsoNormal"><span style="color:#1f497d">164 Total_Erase_Count 0x0000 100 100 000 Old_age Offline - 321118</span></p><p class="MsoNormal"><span style="color:#1f497d">165 Max_Erase_Count 0x0000 100 100 000 Old_age Offline - 177</span></p><p class="MsoNormal"><span style="color:#1f497d">166 Min_Erase_Count 0x0000 100 100 000 Old_age Offline - 77</span></p><p class="MsoNormal"><span style="color:#1f497d">167 Average_Erase_Count 0x0000 100 100 000 Old_age Offline - 156</span></p><p class="MsoNormal"><span style="color:#1f497d">168 Max_Erase_Count_of_Spec 0x0000 100 100 000 Old_age Offline - 3000</span></p><p class="MsoNormal"><span style="color:#1f497d">169 Remaining_Lifetime_Perc 0x0000 100 100 000 Old_age Offline - 95</span></p><p class="MsoNormal"><span style="color:#1f497d">175 Program_Fail_Count_Chip 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">176 Erase_Fail_Count_Chip 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">177 Wear_Leveling_Count 0x0000 100 100 050 Old_age Offline - 291</span></p><p class="MsoNormal"><span style="color:#1f497d">178 Runtime_Invalid_Blk_Cnt 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">181 Program_Fail_Cnt_Total 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">182 Erase_Fail_Count_Total 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">192 Power-Off_Retract_Count 0x0000 100 100 000 Old_age Offline - 8</span></p><p class="MsoNormal"><span style="color:#1f497d">194 Temperature_Celsius 0x0000 100 100 000 Old_age Offline - 37</span></p><p class="MsoNormal"><span style="color:#1f497d">195 Hardware_ECC_Recovered 0x0000 100 100 000 Old_age Offline - 7837</span></p><p class="MsoNormal"><span style="color:#1f497d">196 Reallocated_Event_Count 0x0000 100 100 016 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">197 <b>Current_Pending_Sector</b> 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">198 Offline_Uncorrectable 0x0000 100 100 000 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">199 UDMA_CRC_Error_Count 0x0000 100 100 050 Old_age Offline - 0</span></p><p class="MsoNormal"><span style="color:#1f497d">232 Available_Reservd_Space 0x0000 100 100 000 Old_age Offline - 100</span></p><p class="MsoNormal"><span style="color:#1f497d">241 Host_Writes_32MiB 0x0000 100 100 000 Old_age Offline - 2330590</span></p><p class="MsoNormal"><span style="color:#1f497d">242 Host_Reads_32MiB 0x0000 100 100 000 Old_age Offline - 2687687</span></p><p class="MsoNormal"><span style="color:#1f497d">245 TLC_Writes_32MiB 0x0000 100 100 000 Old_age Offline - 2568944</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">SMART Error Log Version: 1</span></p><p class="MsoNormal"><span style="color:#1f497d">No Errors Logged</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">SMART Self-test log structure revision number 1</span></p><p class="MsoNormal"><span style="color:#1f497d">Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error</span></p><p class="MsoNormal"><span style="color:#1f497d"># 1 Extended offline Completed without error 00% 88 -</span></p><p class="MsoNormal"><span style="color:#1f497d"># 2 Extended offline <b>Completed without error</b> 00% 86 -</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">SMART Selective self-test log data structure revision number 1</span></p><p class="MsoNormal"><span style="color:#1f497d">SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS</span></p><p class="MsoNormal"><span style="color:#1f497d"> 1 0 0 Not_testing</span></p><p class="MsoNormal"><span style="color:#1f497d"> 2 0 0 Not_testing</span></p><p class="MsoNormal"><span style="color:#1f497d"> 3 0 0 Not_testing</span></p><p class="MsoNormal"><span style="color:#1f497d"> 4 0 0 Not_testing</span></p><p class="MsoNormal"><span style="color:#1f497d"> 5 0 0 Not_testing</span></p><p class="MsoNormal"><span style="color:#1f497d"> 7 0 65535 Read_scanning was completed without error</span></p><p class="MsoNormal"><span style="color:#1f497d">Selective self-test flags (0x0):</span></p><p class="MsoNormal"><span style="color:#1f497d"> After scanning selected spans, do NOT read-scan remainder of disk.</span></p><p class="MsoNormal"><span style="color:#1f497d">If Selective self-test is pending on power-up, resume after 0 minute delay.</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">Also and Extended SMART test was run and has passed.</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">The question I have is can anyone help understand what this SMART error/warning means. I can be one of 3 things:</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-size:10.0pt;color:#0070c0"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-size:10.0pt;color:#0070c0">It is normal and no action is necessary but needs to be explained further</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-size:10.0pt;color:#0070c0"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-size:10.0pt;color:#0070c0">It is an issue with the Transcend drive/FW and Transcend needs to look into this further</span></p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><span style="font-size:10.0pt;color:#0070c0"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-size:10.0pt;color:#0070c0">There is an issue with the computer - Maybe noise, power, or SATA TX/TX signal strength?</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">We need to help them find out what caused these messages and if it is a sign of a problem with the SSD or is this normal after writing 78TB of data? Is the number </span><span style="color:#1f497d">524288 </span><span style="font-size:10.0pt;color:#0070c0">concerning in this warning message?</span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;color:#0070c0">We don’t want to ignore this warning in the event it is going to lead to a major issue down the road.</span></p><p class="MsoNormal"> </p><p class="MsoNormal">Regards,</p><p class="MsoNormal">Todd</p><p class="MsoNormal"> </p></div></body></html>