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100%
Automating command execution across servers
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Photo by Adrian Hartanto on Unsplash
Rubén Llorente ... : [devuan] 10 donkey: 11 user: root 12 host: donkey.operationalsecurity.es 13 tags: [devuan] 14 zebra: 15 user: root 16 host: zebra.operationalsecurity.es 17 tags: [devuan] 18 19
99%
Discover the power of RouterBOARDS
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Lead Image © andreysuslov, 123RF.com
Rubén Llorente ... is easy enough (superuser privileges are required): arp -s 192.168.90.55 00:0c:29:c1:91:b1 The last field of the command is the MAC address, which is the unique identifier of the network device to which
32%
When I/O workloads don't perform
02.08.2021
Home »  Archive  »  2021  »  Issue 64: Bare...  » 
Lead Image © Viacheslav Iakobchuk, 123RF.com
.91 0.01 79.70 0.08 0.42 0.03 0.00 301.34 3.98 1.02 7.24 sdb 0.31 55.97 4.13 17676.32 0.00 231.64 0.00 80.54 2.50 8.47 0.32 13.45 315.84 1
30%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
B/s), 1236KiB/s-1236KiB/s (1266kB/s-1266kB/s), io=72.5MiB (76.1MB), run=60102-60102msec Disk stats (read/write):     md0: ios=53/18535, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=33/18732, aggrmerge
28%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
Use of mysqld # ps aux | egrep 'mysqld|VSZ' USER PID %CPU %MEM VSZ RSS START TIME COMMAND mysql 1568 0.0 0.0 4440 744 Sep08 0:00 mysqld_safe mysql 2337 0.1 5.9 29163040
28%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
B/s-1371KiB/s (1404kB/s-1404kB/s), io=80.5MiB (84.4MB), run=60145-60145msec Disk stats (read/write): md0: ios=100/20614, merge=0/0, ticks=0/0, in_queue=0, util=0.00%, aggrios=103/20776, aggrmerge=0/0
28%
Monitoring Storage with iostat
25.02.2013
Home »  HPC  »  Articles  » 
:56:05 AM avg-cpu: %user %nice %system %iowait %steal %idle 55.00 0.00 13.50 0.00 0.00 31.50 Device: rrqm/s wrqm/s r/s w/s rMB/s wMB/s avgrq-sz avgqu
28%
A closer look at hard drives
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Lucy Baldwin, 123RF
: XXXXXXXXXXXXXXXXXX 6 Firmware Revision: 2CV102HD 7 Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6 8 Standards: 9 Used: ATA/ATAPI-7 T13 1532
28%
Process, Network, and Disk Metrics
26.02.2014
Home »  HPC  »  Articles  » 
 reqs merged:           1.42/s     Write reqs completed:            0.98/s    Read BW:                     0.05 MB/s  Write BW:                        0.13 MB/s    Avg sector size issued     108.81       Avg
26%
Distributed storage with Sheepdog
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © kateleigh, 123RF.com
Sheepdog Server in Action # ps -ef|egrep '([c]orosyn|[s]heep)' root 491 1 0 13:04 ? 00:00:30 corosync root 581 1 0 1:13 PM ? 00:00:03 sheep -p 7000 /var

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