Today I realised that manually checking the smart status of a disk required a bit more.<\/p>\n
\r\n[root@box ~]# smartctl -a -d megaraid,0 \/dev\/sda\r\nsmartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.16.1.el6.x86_64] (local build)\r\nCopyright (C) 2002-12 by Bruce Allen, http:\/\/smartmontools.sourceforge.net\r\n\r\nVendor: SEAGATE\r\nProduct: ST3146356SS\r\nRevision: HS10\r\nUser Capacity: 146,815,733,760 bytes [146 GB]\r\nLogical block size: 512 bytes\r\nLogical Unit id: -----\r\nSerial number: ----\r\nDevice type: disk\r\nTransport protocol: SAS\r\nLocal Time is: Thu Mar 15 05:18:57 2018 CDT\r\nDevice supports SMART and is Enabled\r\nTemperature Warning Disabled or Not Supported\r\nSMART Health Status: OK\r\n\r\nCurrent Drive Temperature: 32 C\r\nDrive Trip Temperature: 68 C\r\nElements in grown defect list: 15\r\nVendor (Seagate) cache information\r\n Blocks sent to initiator = 3694557980\r\n Blocks received from initiator = 4259977977\r\n Blocks read from cache and sent to initiator = 2859908284\r\n Number of read and write commands whose size <= segment size = 1099899109\r\n Number of read and write commands whose size > segment size = 0\r\nVendor (Seagate\/Hitachi) factory information\r\n number of hours powered up = 65098.07\r\n number of minutes until next internal SMART test = 23\r\n\r\nError counter log:\r\n Errors Corrected by Total Correction Gigabytes Total\r\n ECC rereads\/ errors algorithm processed uncorrected\r\n fast | delayed rewrites corrected invocations [10^9 bytes] errors\r\nread: 105645673 6 0 105645679 105645679 65781.538 0\r\nwrite: 0 0 38 38 45 48511.618 7\r\nverify: 48452245 7 0 48452252 48452259 43540.092 7\r\n\r\nNon-medium error count: 48\r\n\r\nSMART Self-test log\r\nNum Test Status segment LifeTime LBA_first_err [SK ASC ASQ]\r\n Description number (hours)\r\n# 1 Background long Completed 16 1 - [- - -]\r\n# 2 Background short Completed 16 0 - [- - -]\r\n<\/pre>\nIn order to retrieve this detail you need to use -d megaraid,n where n is the disk id number. Try 0, 1, 2, 3, etc. Or use the megaraidCLI to get a list of all the disks. I dunno I thought it was worth mentioning at least. It always pays to check this if customer is having weird I\/O troubles. Quite a lot of detail is provided about errors the disk encounters. So looking here, even if SMART OK. Gives you an idea if any test failing for disk.<\/p>\n","protected":false},"excerpt":{"rendered":"
Today I realised that manually checking the smart status of a disk required a bit more. [root@box ~]# smartctl -a -d megaraid,0 \/dev\/sda smartctl 5.43 2016-09-28 r4347 [x86_64-linux-2.6.32-696.16.1.el6.x86_64] (local build) Copyright (C) 2002-12 by Bruce Allen, http:\/\/smartmontools.sourceforge.net Vendor: SEAGATE Product: … Continue reading