harddisk western digital green WD20EARS 2TB 3.5 mekanisk cmr

selger eldre disk WD20EARS-00MVWB0

smartinfo og ytelse test følger under

hastighet buffret sekvensiell skriving 136.7MB/s - med 4096B blokk størrelse - 4K

hastighet direkte/"ikke buffret" sekvensiell skriving 31.3MB/s - med 4096B blokk størrelse - 4K

=== START OF INFORMATION SECTION ===

Model Family: Western Digital Caviar Green (AF)

Device Model: WDC WD20EARS-00MVWB0

Serial Number: 4911

LU WWN Device Id: 5 0014ee 205d96d27

Firmware Version: 51.0AB51

User Capacity: 2,000,398,934,016 bytes [2.00 TB]

Sector Size: 512 bytes logical/physical

Device is: In smartctl database 7.3/5601

ATA Version is: ATA8-ACS (minor revision not indicated)

SATA Version is: SATA 2.6, 3.0 Gb/s

Local Time is: Fri Apr 5 16:13:03 2024 CEST

SMART support is: Available - device has SMART capability.

SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===

SMART Attributes Data Structure revision number: 16

Vendor Specific SMART Attributes with Thresholds:

ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE

1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0

3 Spin_Up_Time 0x0027 253 162 021 Pre-fail Always - 2025

4 Start_Stop_Count 0x0032 080 080 000 Old_age Always - 20338

5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0

7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0

9 Power_On_Hours 0x0032 027 027 000 Old_age Always - 53319

10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0

11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0

12 Power_Cycle_Count 0x0032 098 098 000 Old_age Always - 2042

192 Power-Off_Retract_Count 0x0032 197 197 000 Old_age Always - 2618

193 Load_Cycle_Count 0x0032 170 170 000 Old_age Always - 90581

194 Temperature_Celsius 0x0022 125 100 000 Old_age Always - 25

196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0

197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0

198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0

199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0

200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 0

Test med fio-3.33 - buffret sekvensiell skriving

################################################

sequential_write: (g=0): rw=write, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1

fio-3.33

Starting 1 process

sequential_write: (groupid=0, jobs=1): err= 0: pid=3775: Sun Feb 16 22:05:42 2025

write: IOPS=33.3k, BW=130MiB/s (137MB/s)(9216MiB/70760msec); 0 zone resets

clat (usec): min=10, max=17181, avg=26.34, stdev=335.30

lat (usec): min=10, max=17181, avg=26.88, stdev=335.30

clat percentiles (usec):

| 1.00th=[ 11], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14],

| 30.00th=[ 15], 40.00th=[ 16], 50.00th=[ 16], 60.00th=[ 17],

| 70.00th=[ 18], 80.00th=[ 19], 90.00th=[ 20], 95.00th=[ 23],

| 99.00th=[ 35], 99.50th=[ 46], 99.90th=[ 120], 99.95th=[10552],

| 99.99th=[12911]

bw ( KiB/s): min=110144, max=278688, per=100.00%, avg=133545.28, stdev=41268.49, samples=141

iops : min=27536, max=69672, avg=33386.27, stdev=10317.13, samples=141

lat (usec) : 20=90.17%, 50=9.51%, 100=0.21%, 250=0.01%, 500=0.01%

lat (usec) : 750=0.01%

lat (msec) : 10=0.04%, 20=0.06%

cpu : usr=19.25%, sys=47.24%, ctx=2654, majf=0, minf=13

IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%

submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%

complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%

issued rwts: total=0,2359296,0,0 short=0,0,0,0 dropped=0,0,0,0

latency : target=0, window=0, percentile=100.00%, depth=1

Run status group 0 (all jobs):

WRITE: bw=130MiB/s (137MB/s), 130MiB/s-130MiB/s (137MB/s-137MB/s), io=9216MiB (9664MB), run=70760-70760msec

Disk stats (read/write):

sdh: ios=54/12116, merge=0/2026879, ticks=188/1110653, in_queue=1110841, util=96.58%

---------------------------------------------------------------------------

Test med fio-3.33 - direkte/"ikke buffret" sekvensiell skriving

sequential_write: (g=0): rw=write, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1

fio-3.33

Starting 1 process

sequential_write: (groupid=0, jobs=1): err= 0: pid=78702: Mon Feb 17 13:03:49 2025

write: IOPS=7652, BW=29.9MiB/s (31.3MB/s)(9216MiB/308294msec); 0 zone resets

clat (usec): min=92, max=11488, avg=126.61, stdev=58.10

lat (usec): min=93, max=11489, avg=127.78, stdev=58.16

clat percentiles (usec):

| 1.00th=[ 110], 5.00th=[ 114], 10.00th=[ 117], 20.00th=[ 120],

| 30.00th=[ 121], 40.00th=[ 122], 50.00th=[ 123], 60.00th=[ 125],

| 70.00th=[ 126], 80.00th=[ 128], 90.00th=[ 131], 95.00th=[ 135],

| 99.00th=[ 190], 99.50th=[ 210], 99.90th=[ 1205], 99.95th=[ 1467],

| 99.99th=[ 1614]

bw ( KiB/s): min=27225, max=32601, per=100.00%, avg=30635.25, stdev=356.68, samples=615

iops : min= 6806, max= 8150, avg=7658.66, stdev=89.18, samples=615

lat (usec) : 100=0.01%, 250=99.72%, 500=0.03%, 750=0.01%, 1000=0.07%

lat (msec) : 2=0.18%, 4=0.01%, 10=0.01%, 20=0.01%

cpu : usr=4.94%, sys=14.43%, ctx=2359698, majf=0, minf=13

IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%

submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%

complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%

issued rwts: total=0,2359296,0,0 short=0,0,0,0 dropped=0,0,0,0

latency : target=0, window=0, percentile=100.00%, depth=1

Run status group 0 (all jobs):

WRITE: bw=29.9MiB/s (31.3MB/s), 29.9MiB/s-29.9MiB/s (31.3MB/s-31.3MB/s), io=9216MiB (9664MB), run=308294-308294msec

Disk stats (read/write):

sdh: ios=42/2357842, merge=0/0, ticks=15/264510, in_queue=264525, util=86.05%

################################################

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"WD20EARS-00MVWB0"

"western digital"

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