July 26, 201411 yr Unraid: 5.0.5 Controler: ICH9R Preclear: 1.15 ========================================================================1.15 == invoked as: ./preclear_disk.sh -c 3 /dev/sdb == HGSTHDN724030ALE640 == Disk /dev/sdb has been successfully precleared == with a starting sector of 1 == Ran 3 cycles == == Using :Read block size = 8388608 Bytes == Last Cycle's Pre Read Time : 7:33:28 (110 MB/s) == Last Cycle's Zeroing time : 6:41:08 (124 MB/s) == Last Cycle's Post Read Time : 17:21:14 (48 MB/s) == Last Cycle's Total Time : 24:03:28 == == Total Elapsed Time 79:50:04 == == Disk Start Temperature: 32C == == Current Disk Temperature: 40C, == ============================================================================ ** Changed attributes in files: /tmp/smart_start_sdb /tmp/smart_finish_sdb ATTRIBUTE NEW_VAL OLD_VAL FAILURE_THRESHOLD STATUS RAW_VALUE Temperature_Celsius = 150 187 0 ok 40 No SMART attributes are FAILING_NOW 0 sectors were pending re-allocation before the start of the preclear. 0 sectors were pending re-allocation after pre-read in cycle 1 of 3. 0 sectors were pending re-allocation after zero of disk in cycle 1 of 3. 0 sectors were pending re-allocation after post-read in cycle 1 of 3. 0 sectors were pending re-allocation after zero of disk in cycle 2 of 3. 0 sectors were pending re-allocation after post-read in cycle 2 of 3. 0 sectors were pending re-allocation after zero of disk in cycle 3 of 3. 0 sectors are pending re-allocation at the end of the preclear, the number of sectors pending re-allocation did not change. 0 sectors had been re-allocated before the start of the preclear. 0 sectors are re-allocated at the end of the preclear, the number of sectors re-allocated did not change. ============================================================================ Compared to seagate video surveillance and WD red: == ST3000VX000-1CU166 == Last Cycle's Pre Read Time : 6:11:00 (134 MB/s) == Last Cycle's Zeroing time : 5:32:45 (150 MB/s) == Last Cycle's Post Read Time : 13:17:11 (62 MB/s) == Last Cycle's Total Time : 25:01:57 == WDC WD30EFRX-68EUZN0 == Last Cycle's Pre Read Time : 8:17:42 (100 MB/s) == Last Cycle's Zeroing time : 7:17:15 (114 MB/s) == Last Cycle's Post Read Time : 16:07:42 (51 MB/s) == Last Cycle's Total Time : 23:25:56
July 26, 201411 yr These are all right in the range I'd expect. Did you have a question about this? ... or are you just posting it for info?
July 26, 201411 yr Author Just posting some info on some non mainstream drives. Seems everyone is on the WD red/green bandwagon, so decided to try a few others since they are the same price or cheaper.
July 26, 201411 yr I assumed as much. Any drives using the same areal density with effectively the same rotational speed are going to have very similar times. By the way the HGST drives are VERY well reviewed and have an excellent track record r.e. reliability. I've been very happy with the WD Reds and Seagate NAS units I've used, so that's all I use these days -- any drives I buy in the near future will be 6TB WD Reds ... but if HGST comes out with a 6TB unit I'll likely try that as well. Just don't see any reason to buy drives smaller than what's available for a storage server.
January 26, 201511 yr Author Update for the New 6TB version ========================================================================1.15 == invoked as: ./preclear_disk.sh /dev/sdh == HGSTHDN726060ALE610 == Disk /dev/sdh has been successfully precleared == with a starting sector of 1 == Ran 1 cycle == == Using :Read block size = 8388608 Bytes == Last Cycle's Pre Read Time : 10:13:41 (162 MB/s) == Last Cycle's Zeroing time : 9:29:12 (175 MB/s) == Last Cycle's Post Read Time : 21:57:32 (75 MB/s) == Last Cycle's Total Time : 41:41:26 == == Total Elapsed Time 41:41:26 == == Disk Start Temperature: 39C == == Current Disk Temperature: -->48<--C, == ============================================================================
January 26, 201511 yr Is this drive mounted where it's not getting good airflow? The temp (48C) is notably higher than I'd like. Low 40's is fine, but anything above 45 is worrisome. I know these drives are spec'd for up to 60, but it's still better if they're kept well below that.
January 26, 201511 yr Author It was open air on top of the case (vert hdd dock). It was a bit warm, but it was at 45c for most of the test. Inside the case the drives stay 25-30c.
January 26, 201511 yr About what I had assumed -- just wanted to be sure these weren't temps from a drive that was receiving good ventilation.
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