# pvcreate /dev/vdc /dev/vdd /dev/vde /dev/vdf

# vgcreate VG01 /dev/vdc /dev/vdd /dev/vde /dev/vdf

# lvcreate -L 1G -i2 -n lv_stripe2 VG01

ストライプサイズ256K

# lvcreate -L 1G -I 256 -i2 -n lv_stripe2 VG01

# lvcreate -L 1G -i2 -n lv_stripe2 VG01 /dev/vde /dev/vdf

# lvcreate -L 1G -i3 -n lv_stripe2 VG01 /dev/vdd /dev/vde /dev/vdf

ストライプサイズについて

LVの確認方法

# lvs -a -o +stripesize,devices
  LV         VG   Attr       LSize Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert Stripe Devices                                             
  lv_stripe2 VG01 -wi-ao---- 1.00g                                                     64.00k /dev/vdc(0),/dev/vdd(0)                             
  lv_stripe3 VG01 -wi-ao---- 1.01g                                                     64.00k /dev/vdc(128),/dev/vdd(128),/dev/vde(0)             
  lv_stripe4 VG01 -wi-ao---- 1.00g                                                     64.00k /dev/vdc(214),/dev/vdd(214),/dev/vde(86),/dev/vdf(0)
  

Throughput 282.708 MB/sec  4 clients  4 procs  max_latency=42.144 ms
Throughput 285.95 MB/sec  4 clients  4 procs  max_latency=32.469 ms
Throughput 290.386 MB/sec  4 clients  4 procs  max_latency=55.783 ms

Throughput 374.822 MB/sec  4 clients  4 procs  max_latency=29.562 ms
Throughput 429.386 MB/sec  4 clients  4 procs  max_latency=31.641 ms
Throughput 347.964 MB/sec  4 clients  4 procs  max_latency=792.088 ms

Throughput 426.296 MB/sec  4 clients  4 procs  max_latency=27.665 ms
Throughput 419.899 MB/sec  4 clients  4 procs  max_latency=33.654 ms
Throughput 439.152 MB/sec  4 clients  4 procs  max_latency=17.730 ms

Throughput 425.374 MB/sec  4 clients  4 procs  max_latency=40.938 ms
Throughput 440.367 MB/sec  4 clients  4 procs  max_latency=16.477 ms
Throughput 413.776 MB/sec  4 clients  4 procs  max_latency=121.602 ms