derek@derek-desktop ~> lsblk                                             (base) 
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda      8:0    0   3.6T  0 disk 
├─sda1   8:1    0   3.6T  0 part 
└─sda9   8:9    0     8M  0 part 
sdb      8:16   0   2.7T  0 disk 
├─sdb1   8:17   0   2.7T  0 part 
└─sdb9   8:25   0     8M  0 part 
sdc      8:32   0  25.5T  0 disk 
sdd      8:48   0 931.5G  0 disk 
├─sdd1   8:49   0   512M  0 part /boot/efi
└─sdd2   8:50   0   931G  0 part /
derek@derek-desktop ~> sudo fio \                                        (base) 
                             --name=burnin \
                             --filename=/dev/sdc \
                             --rw=write \
                             --bs=1M \
                             --direct=1 \
                             --ioengine=libaio \
                             --verify=crc32c \
                             --do_verify=1 \
                             --verify_fatal=1
[sudo] password for derek:           
burnin: (g=0): rw=write, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=libaio, iodepth=1
fio-3.28
Starting 1 process
Jobs: 1 (f=1): [V(1)][100.0%][r=115MiB/s][r=114 IOPS][eta 00m:00s]                        
burnin: (groupid=0, jobs=1): err= 0: pid=30184: Tue Jun 30 03:23:02 2026
  read: IOPS=183, BW=184MiB/s (193MB/s)(25.5TiB/145390671msec)
    slat (usec): min=11, max=10102, avg=61.08, stdev=60.66
    clat (nsec): min=1201, max=344575k, avg=5089155.31, stdev=1487252.25
     lat (usec): min=1939, max=344650, avg=5150.63, stdev=1486.71
    clat percentiles (usec):
     |  1.00th=[ 3130],  5.00th=[ 3523], 10.00th=[ 3687], 20.00th=[ 3982],
     | 30.00th=[ 4228], 40.00th=[ 4424], 50.00th=[ 4686], 60.00th=[ 5080],
     | 70.00th=[ 5538], 80.00th=[ 6128], 90.00th=[ 7177], 95.00th=[ 7832],
     | 99.00th=[ 8848], 99.50th=[ 9241], 99.90th=[13435], 99.95th=[15664],
     | 99.99th=[34341]
  write: IOPS=183, BW=184MiB/s (193MB/s)(25.5TiB/145339452msec); 0 zone resets
    slat (usec): min=190, max=270831, avg=862.74, stdev=473.58
    clat (nsec): min=1828, max=634457k, avg=4573188.49, stdev=1859297.47
     lat (msec): min=2, max=635, avg= 5.44, stdev= 1.80
    clat percentiles (usec):
     |  1.00th=[ 2376],  5.00th=[ 2671], 10.00th=[ 2933], 20.00th=[ 3294],
     | 30.00th=[ 3621], 40.00th=[ 3982], 50.00th=[ 4359], 60.00th=[ 4686],
     | 70.00th=[ 5080], 80.00th=[ 5669], 90.00th=[ 6587], 95.00th=[ 7373],
     | 99.00th=[ 8455], 99.50th=[ 8848], 99.90th=[ 9896], 99.95th=[17433],
     | 99.99th=[66847]
   bw (  KiB/s): min=14336, max=276480, per=100.00%, avg=188337.89, stdev=40385.76, samples=289850
   iops        : min=   14, max=  270, avg=183.51, stdev=39.51, samples=289850
  lat (usec)   : 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.01%
  lat (usec)   : 100=0.01%, 250=0.01%, 500=0.01%, 750=0.01%, 1000=0.01%
  lat (msec)   : 2=0.08%, 4=30.69%, 10=69.10%, 20=0.09%, 50=0.02%
  lat (msec)   : 100=0.01%, 250=0.01%, 500=0.01%, 750=0.01%
  cpu          : usr=10.15%, sys=1.15%, ctx=62197775, majf=625236, minf=1253081
  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=26703872,26703872,0,0 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=184MiB/s (193MB/s), 184MiB/s-184MiB/s (193MB/s-193MB/s), io=25.5TiB (28.0TB), run=145390671-145390671msec
  WRITE: bw=184MiB/s (193MB/s), 184MiB/s-184MiB/s (193MB/s-193MB/s), io=25.5TiB (28.0TB), run=145339452-145339452msec

Disk stats (read/write):
  sdc: ios=43357518/26703872, merge=0/0, ticks=208199081/121617070, in_queue=329816151, util=88.50%
derek@derek-desktop ~>                                                                                         (base)