WD Easystore 12TB from BestBuy, purchased in May 2020, contains WDC WD120EMFZ-11A6JA0. It weighs XXX grams. (to be filled in when I actually take the drive out)
smartctl -a (still within enclosure):
=== START OF INFORMATION SECTION === Device Model: WDC WD120EMFZ-11A6JA0 Serial Number: Z2GD1ZVT LU WWN Device Id: 5 000cca 28dc57bf1 Firmware Version: 81.00A81 User Capacity: 12,000,138,625,024 bytes [12.0 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Rotation Rate: 5400 rpm Form Factor: 3.5 inches Device is: Not in smartctl database [for details use: -P showall] ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4 SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Mon May 25 09:27:55 2020 PDT SMART support is: Available - device has SMART capability. SMART support is: Enabled ... ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 001 Pre-fail Always - 0 2 Throughput_Performance 0x0004 100 100 054 Old_age Offline - 0 3 Spin_Up_Time 0x0007 093 093 001 Pre-fail Always - 309 4 Start_Stop_Count 0x0012 100 100 000 Old_age Always - 5 5 Reallocated_Sector_Ct 0x0033 100 100 001 Pre-fail Always - 0 7 Seek_Error_Rate 0x000a 100 100 001 Old_age Always - 0 8 Seek_Time_Performance 0x0004 100 100 020 Old_age Offline - 0 9 Power_On_Hours 0x0012 100 100 000 Old_age Always - 0 10 Spin_Retry_Count 0x0012 100 100 001 Old_age Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 5 22 Unknown_Attribute 0x0023 100 100 025 Pre-fail Always - 100 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 5 193 Load_Cycle_Count 0x0012 100 100 000 Old_age Always - 5 194 Temperature_Celsius 0x0002 059 059 000 Old_age Always - 27 (Min/Max 23/27) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 197 Current_Pending_Sector 0x0022 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0008 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x000a 100 100 000 Old_age Always - 0
It does not seem to be an SMR drive. Sustained write performance between 115-180MB/s, read performance 150-200MB/s over USB 3.0.
It can get pretty warm when writing for extended period of time inside enclosure. I recommend attaching and external fan. (I was doing badblocks test before taking it out of the enclosure in case of any issues with the drive) and the drive heat up to 49c before I realized, and then I attached the fan (WD says that operating temperature is up to 60c, but going above 50 is not recommended). A single iteration (one pattern) of badblocks takes ~40 hours for write and read.
badblocks -wsv /dev/sdb -b 4096
The second iteration of badblocks was slower, the average speeds were 90-150MB/s, while the read maintained 150-200MB. In total, 3 iterations (3*write/read) took approx 140 hours (on not so fast USB 3.0). At this point I abandoned badblocks, having written and read 24TB each I feel is a sufficient test of a new hard drive 😉
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