23%
15.08.2016
-> ../../devices/pci0000:00/0000:00:03.0/net/eth0
|---lo -> ../../devices/virtual/net/lo
The device is no longer listed in the default namespace.
Listing 3
Configuring Devices
$ ip link set eth1
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05.08.2024
= [size][size]int {{0},{0},}
08
09 for i := 0; i < size; i++ {
10 for j := 0; j < size; j++ {
11 array[i][j]++
12 }
13 }
14
15
23%
25.03.2020
] [raid6] [raid5] [raid4] [raid10]
md0 : active raid5 sdd1[5] sde1[4] sdc1[2] sdb1[1] nvme0n1p1[0](J)
20508171264 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UU
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19.11.2019
, ioengine=libaio, iodepth=32
fio-3.1
Starting 1 process
Jobs: 1 (f=1): [w(1)][100.0%][r=0KiB/s,w=1401KiB/s][r=0,w=350 IOPS][eta 00m:00s]
test: (groupid=0, jobs=1): err= 0: pid=3104: Sat Oct 12 14:39:08 2019
write: IOPS=352
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18.07.2013
buffered disk reads: 616 MB in
3.00 seconds = 205.03 MB/sec
$ hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 6292 MB in
2.00 seconds = 3153.09 MB/sec
If this were a spinning disk, you would also
23%
21.01.2020
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md0 started.
Next, verify that the RAID configuration has been created (Listing 3). You will immediately notice that the array initializes
23%
11.04.2016
/s wMB/s avgrq-sz ...
sdb 0.00 28.00 1.00 259.00 0.00 119.29 939.69 ...
Parallelism
Multiple computers can access enterprise storage, and multiple threads can access
23%
07.01.2014
.
[laytonjb@home4 TEST]$ du -sh backup.0
14M backup.0
[laytonjb@home4 TEST]$ du -sh backup.1
12M backup.1
[laytonjb@home4 TEST]$ du -sh backup.2
9.2M backup.2
[laytonjb@home4 TEST]$ du -sh backup.3
7.7M backup
23%
18.06.2014
mtime age file in days: 0.016 days
Standard deviation mtime age in days: 590.7352 days
*** Mtime interval summary
[ 0- 1 days]: 176 ( 0.05%) ( 0.05% cumulative)
[ 1- 2 days]: 0 ( 0.00%) ( 0
23%
09.04.2019
in mv
ubuntu@aws:~/slow-mv$ strace -t mv 3GB.copy 3GB
19:00:09 execve("/bin/mv", ["mv", "3GB.copy", "3GB"], 0x7ffd0e7dddf8 /* 21 vars */) = 0
19:00:09 brk(NULL) = 0x55cd7d1ce000