ディスクの設定情報を表示する2024/07/01 |
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コンピューターに搭載されたディスクの設定等の情報を表示します。
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| [1] | 必要なパッケージをインストールします。 SCSI や SATA 接続のデバイスについては [hdparm]、NVMe 接続の M.2 SSD 等のデバイスについては [nvme-cli] をインストールします。 |
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root@dlp:~# apt -y install hdparm nvme-cli
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| [2] | [hdparm] の基本的な操作です。当例では設定情報の表示のみを例示します。 |
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# ディスクの設定情報を表示 root@dlp:~# hdparm /dev/sda /dev/sda: multcount = 16 (on) IO_support = 1 (32-bit) readonly = 0 (off) readahead = 256 (on) geometry = 15566/255/63, sectors = 250069680, start = 0 # ディスクの詳細な情報を表示 root@dlp:~# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: TOSHIBA THNSNH128GCST
Serial Number: Y3TS108TTPEY
Firmware Revision: HTRAN101
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
Supported: 9 8 7 6 5
Likely used: 9
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
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CHS current addressable sectors: 16514064
LBA user addressable sectors: 250069680
LBA48 user addressable sectors: 250069680
Logical Sector size: 512 bytes
Physical Sector size: 512 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 122104 MBytes
device size with M = 1000*1000: 128035 MBytes (128 GB)
cache/buffer size = unknown
Form Factor: 2.5 inch
Nominal Media Rotation Rate: Solid State Device
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# デバイスとキャッシュの読み出し性能をテストする root@dlp:~# hdparm -Tt /dev/sda /dev/sda: Timing cached reads: 20864 MB in 1.99 seconds = 10484.78 MB/sec Timing buffered disk reads: 1522 MB in 3.00 seconds = 507.15 MB/sec |
| [3] | [nvme-cli] の基本的な操作です。当例では設定情報の表示のみを例示します。 |
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# NVMe デバイスを表示する root@dlp:~# nvme list Node Generic SN Model Namespace Usage Format FW Rev --------------------- --------------------- -------------------- ---------------------------------------- ---------- -------------------------- ---------------- -------- /dev/nvme0n1 /dev/ng0n1 BTNH93310Q5T1P0B INTEL SSDPEKNW010T8 0x1 1.02 TB / 1.02 TB 512 B + 0 B 002C # デバイス情報を表示する root@dlp:~# nvme id-ctrl -H /dev/nvme0n1 NVME Identify Controller: vid : 0x8086 ssvid : 0x8086 sn : BTNH93310Q5T1P0B mn : INTEL SSDPEKNW010T8 fr : 002C rab : 6 ieee : 5cd2e4 cmic : 0 [3:3] : 0 ANA not supported [2:2] : 0 PCI [1:1] : 0 Single Controller [0:0] : 0 Single Port mdts : 5 cntlid : 0x1 ver : 0x10300 rtd3r : 0x7a120 rtd3e : 0x1e8480 oaes : 0x200 [31:31] : 0 Discovery Log Change Notice Not Supported [27:27] : 0 Zone Descriptor Changed Notices Not Supported ..... ..... # SMART ログを表示する root@dlp:~# nvme smart-log /dev/nvme0n1 Smart Log for NVME device:nvme0n1 namespace-id:ffffffff critical_warning : 0 temperature : 36 °C (309 K) available_spare : 100% available_spare_threshold : 10% percentage_used : 1% endurance group critical warning summary: 0 Data Units Read : 1421357 (727.73 GB) Data Units Written : 9200666 (4.71 TB) host_read_commands : 10750557 host_write_commands : 58813993 controller_busy_time : 538 power_cycles : 55 power_on_hours : 24735 unsafe_shutdowns : 4 media_errors : 0 num_err_log_entries : 0 Warning Temperature Time : 0 Critical Composite Temperature Time : 0 Thermal Management T1 Trans Count : 284 Thermal Management T2 Trans Count : 0 Thermal Management T1 Total Time : 2072 Thermal Management T2 Total Time : 0 # エラーログを表示する root@dlp:~# nvme error-log /dev/nvme0n1 Error Log Entries for device:nvme0n1 entries:64 ..... ..... ................. Entry[63] ................. error_count : 0 sqid : 0 cmdid : 0 status_field : 0(Successful Completion: The command completed without error) phase_tag : 0 parm_err_loc : 0 lba : 0 nsid : 0 vs : 0 trtype : The transport type is not indicated or the error is not transport related. csi : 0 opcode : 0 cs : 0 trtype_spec_info: 0 log_page_version: 0 ................. |
| [4] | 接続方式に関係なく使用可能なベンチマークツール [fio (Flexible I/O Tester)] コマンドでのディスク性能のテストです。 |
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root@dlp:~#
root@dev:~# apt -y install fio
df -h /mnt Filesystem Size Used Avail Use% Mounted on /dev/nvme0n1p1 938G 432G 459G 49% /mnt # ブロックサイズ 4K でのシーケンシャルリード性能をテストする root@dlp:~# fio --bs=4k --size=1G --direct=1 --rw=read --numjobs=64 --runtime=10 --group_reporting --name=testjob4K1G --filename=/mnt/testfile4K1G
testjob4K1G: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=1
...
fio-3.36
Starting 64 processes
testjob4K1G: Laying out IO file (1 file / 1024MiB)
Jobs: 64 (f=64): [R(64)][100.0%][r=673MiB/s][r=172k IOPS][eta 00m:00s]
testjob4K1G: (groupid=0, jobs=64): err= 0: pid=21881: Mon Jul 1 00:47:13 2024
read: IOPS=165k, BW=643MiB/s (674MB/s)(6434MiB/10005msec)
clat (usec): min=88, max=4782, avg=387.44, stdev=136.53
lat (usec): min=88, max=4782, avg=387.54, stdev=136.53
clat percentiles (usec):
| 1.00th=[ 184], 5.00th=[ 229], 10.00th=[ 269], 20.00th=[ 277],
| 30.00th=[ 322], 40.00th=[ 334], 50.00th=[ 367], 60.00th=[ 408],
| 70.00th=[ 416], 80.00th=[ 461], 90.00th=[ 510], 95.00th=[ 578],
| 99.00th=[ 807], 99.50th=[ 1057], 99.90th=[ 1827], 99.95th=[ 1942],
| 99.99th=[ 2278]
bw ( KiB/s): min=433679, max=695082, per=100.00%, avg=659089.49, stdev=937.47, samples=1279
iops : min=108403, max=173768, avg=164769.37, stdev=234.43, samples=1279
lat (usec) : 100=0.01%, 250=8.36%, 500=75.48%, 750=14.93%, 1000=0.65%
lat (msec) : 2=0.53%, 4=0.03%, 10=0.01%
cpu : usr=0.78%, sys=2.02%, ctx=1647337, majf=0, minf=934
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=1647195,0,0,0 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):
READ: bw=643MiB/s (674MB/s), 643MiB/s-643MiB/s (674MB/s-674MB/s), io=6434MiB (6747MB), run=10005-10005msec
Disk stats (read/write):
nvme0n1: ios=1647053/9, sectors=13176424/144, merge=0/9, ticks=620747/3, in_queue=620751, util=98.60%
# ブロックサイズ 512K でのシーケンシャルリード性能をテストする root@dlp:~# fio --bs=512k --size=1G --direct=1 --rw=read --numjobs=64 --runtime=10 --group_reporting --name=testjob512K1G --filename=/mnt/testfile512K1G
testjob512K1G: (g=0): rw=read, bs=(R) 512KiB-512KiB, (W) 512KiB-512KiB, (T) 512KiB-512KiB, ioengine=psync, iodepth=1
...
fio-3.36
Starting 64 processes
testjob512K1G: Laying out IO file (1 file / 1024MiB)
Jobs: 64 (f=64): [R(64)][100.0%][r=1419MiB/s][r=2837 IOPS][eta 00m:00s]
testjob512K1G: (groupid=0, jobs=64): err= 0: pid=21988: Mon Jul 1 00:49:18 2024
read: IOPS=2823, BW=1412MiB/s (1480MB/s)(13.8GiB/10023msec)
clat (usec): min=7334, max=34826, avg=22631.35, stdev=2328.69
lat (usec): min=7335, max=34827, avg=22631.82, stdev=2328.68
clat percentiles (usec):
| 1.00th=[12518], 5.00th=[21103], 10.00th=[21890], 20.00th=[22152],
| 30.00th=[22414], 40.00th=[22676], 50.00th=[22938], 60.00th=[23200],
| 70.00th=[23462], 80.00th=[23725], 90.00th=[24249], 95.00th=[24773],
| 99.00th=[26870], 99.50th=[27919], 99.90th=[31327], 99.95th=[32113],
| 99.99th=[34866]
bw ( MiB/s): min= 1342, max= 1473, per=100.00%, avg=1413.48, stdev= 0.60, samples=1232
iops : min= 2684, max= 2946, avg=2826.80, stdev= 1.21, samples=1232
lat (msec) : 10=0.05%, 20=4.80%, 50=95.16%
cpu : usr=0.04%, sys=0.46%, ctx=28796, majf=0, minf=12393
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=28301,0,0,0 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):
READ: bw=1412MiB/s (1480MB/s), 1412MiB/s-1412MiB/s (1480MB/s-1480MB/s), io=13.8GiB (14.8GB), run=10023-10023msec
Disk stats (read/write):
nvme0n1: ios=111248/10, sectors=28479488/144, merge=0/8, ticks=2464094/88, in_queue=2464211, util=98.53%
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