Hardware ¶

The test of new hardware is generally not necessary, the failure rate of today’s components is pretty low.

A burn in is already done on the manufacturer side and usually is not necessary either.

Storage devices ¶

https://linux.die.net/man/8/badblocks

When using larger hard disks, the following error may occur. In this case, the block size used must be raised accordingly (-b 4096).

# badblocks -wsv /dev/sdc
badblocks: Value too large for defined data type invalid end block (9766436864): must be 32-bit value

# badblocks -b 4096 -wsv /dev/sdc

stressapptest¶

https://github.com/stressapptest/stressapptest

# apt-get install stressapptest

# stressapptest -s 30
Log: Commandline - stressapptest -s 30
Stats: SAT revision 1.0.6_autoconf, 64 bit binary
Log: buildd @ lgw01-amd64-022 on Thu Apr  5 10:28:35 UTC 2018 from open source release
Log: 1 nodes, 48 cpus.
Log: Defaulting to 48 copy threads
Log: Total 257895 MB. Free 254409 MB. Hugepages 0 MB. Targeting 244809 MB (94%)
Log: Prefer plain malloc memory allocation.
Log: Using memaligned allocation at 0x7f389f6ff000.
Stats: Starting SAT, 244809M, 30 seconds
Log: Region mask: 0x1
Log: Seconds remaining: 20
Log: Seconds remaining: 10
Stats: Found 0 hardware incidents
Stats: Completed: 1135370.00M in 30.03s 37813.12MB/s, with 0 hardware incidents, 0 errors
Stats: Memory Copy: 1135370.00M at 37825.20MB/s
Stats: File Copy: 0.00M at 0.00MB/s
Stats: Net Copy: 0.00M at 0.00MB/s
Stats: Data Check: 0.00M at 0.00MB/s
Stats: Invert Data: 0.00M at 0.00MB/s
Stats: Disk: 0.00M at 0.00MB/s

Status: PASS - please verify no corrected errors

fio¶

# apt-get install fio

ssd.fio

[global]
bs=4k
ioengine=libaio
iodepth=16
size=10g
direct=1
runtime=60
filename=/dev/nvme2n1
numjobs=4

[seq-read]
rw=read
stonewall

[rand-read]
rw=randread
stonewall

[seq-write]
rw=write
stonewall

[rand-write]
rw=randwrite
stonewall

nvme-rnd.fio

[global]
bs=4k
ioengine=libaio
iodepth=32
size=10g
direct=1
runtime=60
filename=/dev/nvme3n1
numjobs=4
sync=1

[rand-read]
rw=randread
stonewall

[rand-write]
rw=randwrite
stonewall

nvme-seq.fio

[global]
bs=128k
ioengine=libaio
iodepth=4
size=10g
direct=1
runtime=60
filename=/dev/nvme2n1
numjobs=4

[seq-read]
rw=read
stonewall

[seq-write]
rw=write
stonewall

# fio nvme-seq.fio
[...]
Run status group 0 (all jobs):
   READ: bw=3022MiB/s (3169MB/s), 756MiB/s-756MiB/s (792MB/s-792MB/s), io=40.0GiB (42.9GB), run=13551-13552msec

Run status group 1 (all jobs):
  WRITE: bw=2264MiB/s (2374MB/s), 566MiB/s-567MiB/s (594MB/s-595MB/s), io=40.0GiB (42.9GB), run=18057-18091msec

Disk stats (read/write):
  nvme2n1: ios=327721/327676, merge=0/0, ticks=210520/282496, in_queue=468716, util=98.90%

Note

Consult the datasheet of the hardware for the block size, IO queue depth, .. to be used.

CPU ¶

stress-ng¶

# apt-get install stress-ng

Memory ¶

Note

Using memtest86+ (available as a package in Ubuntu) is not possible when using UEFI.

Hardware¶

Storage devices¶