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26%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
RAID Status cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : active raid1 sdd1[1] sdc1[0]       244065408 blocks super 1.2 [2/2] [UU
26%
A closer look at hard drives
18.07.2013
Home »  Archive  »  2013  »  Issue 15: What’...  » 
Lucy Baldwin, 123RF
100 100 000 Old_age Always – 2456 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always
26%
Process, Network, and Disk Metrics
26.02.2014
Home »  HPC  »  Articles  » 
-sent:           22,334 (total)              0/s  (Per-Sec)    pkts-recv:           68,018 (total)              2/s  (Per-Sec) lo    Bytes-sent:          2.55 K (total)         0.00 B/s  (Per-Sec)    Bytes
26%
Asynchronous PostgreSQL
12.09.2013
Home »  Archive  »  2013  »  Issue 16: Docker  » 
Lead Image © Fesus Robert, 123RF.com
. There are some new lines: 5 and 12 to 22. Line 22 installs the sig function as a signal handler for SIGTERM. When the signal arrives, line 13 opens a new connection to the database and calls the pg
26%
Speed up your MySQL database
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Mikhail Dudarev, 123RF.com
for the transmission speed, or you might have technical limits (searching through 100 million rows will take a dozen seconds or so), or you might even encounter financial limits to tuning. (Yes, an SSD could give you 10,000
26%
Hunt down vulnerabilities with the Metasploit pen-testing tool
28.11.2021
Home »  Archive  »  2021  »  Issue 66: Inci...  » 
Lead Image © bluebay, 123rf.com
can use to test security vulnerabilities, enumerate networks, execute attacks, and evade detection" [1], has been written up in a number of books. Linux Magazine reported more than 12 years ago [2
25%
Predicting Drive Doom
20.10.2013
Home »  HPC  »  Articles  » 
_age Always - 61 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 20 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 184 End
25%
Rethinking RAID (on Linux)
25.03.2021
Home »  Archive  »  2021  »  Issue 62: Lean...  » 
Lead Image © nikkikii, 123RF.com
[1] sdc1[0] 244065408 blocks super 1.2 [2/2] [UU] [=>...................] resync = 6.4% (15812032/244065408) finish=19.1min speed=198449K/sec bitmap: 2/2 pages [8KB], 65536KB chunk
25%
Understanding the Status of Your Filesystem
18.06.2014
Home »  HPC  »  Articles  » 
. Table 1:mtime Age Intervals Interval (days) No. of files % of Total Cumulative % 0–1 151 0.04 0.04 1–2 0 0.00 0.04 2
25%
Tuning I/O Patterns in C
31.07.2013
Home »  HPC  »  Articles  » 
Code Example 1 #include 2 3 /* Our structure */ 4 struct rec 5 { 6 int x,y,z; 7 float value; 8 }; 9 10 int main() 11 { 12 int counter; 13 struct rec my

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