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16%
Fixing Ceph performance problems
29.09.2020
Home »  Archive  »  2020  »  Issue 59: Custo...  » 
Lead Image © Kritiya Sumpun, 123RF.com
. Only when the object has arrived in the journals of as many OSDs as the value size specifies (3 out of the box) is the acknowledgement for the write sent to the client, and only then is the write
16%
High availability for RESTful services with OpenStack
09.01.2013
Home »  Archive  »  2013  »  Issue 18: New W...  » 
Lead Image © Ying Feng Johansson, 123RF.com
02 log 127.0.0.1 local0 03 maxconn 4000 04 daemon 05 uid 99 06 gid 99 07 08 defaults 09 log global 10 mode http 11 option httplog 12 option dontlognull 13 timeout server 5s
16%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
the Debian-based, distributions install it along with openvpn – one exception being Ubuntu, which only offers easy-rsa starting with Cosmic Cuttlefish (Ubuntu version 18.10) [3]. The successor, Easy-RSA 3
16%
Error-correcting code memory keeps single-bit errors at bay
14.11.2013
Home »  Archive  »  2013  »  Issue 17: Cloud...  » 
Lead Image © Igor Stevanovic, 123RF.com
A study [3] of real memory errors took place at Google. During their investigations they found that one third of the machines and more than eight percent of the DIMMs saw correctable errors per year
16%
Process, Network, and Disk Metrics
26.02.2014
Home »  HPC  »  Articles  » 
 def    # # Routine to add commas to a float string # def commify3(amount):     amount = str(amount)     amount = amount[::-1]     amount = re.sub(r"(\d\d\d)(?=\d)(?!\d*\.)", r"\1,", amount)     return amount[::-1
16%
Managing Storage with LVM
07.11.2023
Home »  HPC  »  Articles  » 
-WLyW-XDPI-7w3E-SK9BYf   LV Write Access        read/write   LV Creation host, time laytonjb-APEXX-T3-04, 2023-10-14 08:38:33 -0400   LV Status              available   # open                 0   LV
16%
A ptrace-based tracing mechanism for syscalls
06.10.2022
Home »  Archive  »  2022  »  Issue 71: Kuber...  » 
Photo by Nadjib BR on Unsplash
_PRELOAD, as well. libiotrace: Just Another Profiling Tool? A typical CPU computes data faster than data can be fetched from or stored to main memory (the so-called memory wall) [3]. Storage only exacerbates
16%
Attacks on HTTPS Connections
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © almagami, 123RF.com
are not defenseless: The Enhanced Mitigation Experience Toolkit (EMET) has had a function similar to pinning since version 4.0 [3]. Until recently, the server was basically defenseless against these attacks. All data
16%
Kopano Groupware – an open source productivity suite
30.11.2020
Home »  Archive  »  2020  »  Issue 60: Secur...  » 
Lead Image © Klementiev, fotolio.com
(Group) Calendar Address book To-dos Notes Documents (back ends: FTP, ownCloud, Nextcloud, S3) Team chat (Mattermost) Video conferencing (Kopano Meet) Whats
16%
Rethinking RAID (on Linux)
16.03.2021
Home »  HPC  »  Articles  » 
, ioengine=libaio, iodepth=32 fio-3.12 Starting 1 process Jobs: 1 (f=1) test: (groupid=0, jobs=1): err= 0: pid=5872: Sat Jan  9 16:35:08 2021   read: IOPS=251k, BW=979MiB/s (1026MB/s)(2045MiB/2089msec

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