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29%
Detect failures and ensure high availability
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Photo by Tim Foster on Unsplash
, on the secondary node, enter: $ watch -n1 cat /proc/drbd You should see something similar to the output shown in Listing 3. When synchronization is 100 percent complete, the same file will showcase the output
29%
Moving Your Data – It’s Not Always Pleasant
08.05.2013
Home »  HPC  »  Articles  » 
between mountpoints. For example: [laytonjb@mover1 ~]$ cp -a --preserve=all -r /old_storage/data /new_storage/data 
Be warned that if you use NFS, you will lose all xattr information because no NFS
29%
Stressing security with PowerShell
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Freya Sapphire, Photocase.com
, specialized meta-frameworks are available on GitHub, PowerLine [3] being just one example. PS2EXE [4] also follows a similar approach, although with completely different administrative goals. Another option
29%
Secure cloud-native services with Prisma Cloud Compute
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © alexmillos, 123RF.com
is still in transition, so you'll see both product names mentioned throughout this article. Adding to the confusion, Palo Alto Networks offers two similarly named products [2]: the software-as-a-service (Saa
29%
Using the MQTT IoT protocol for unusual but useful purposes
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Heiko Küverling, 123RF.com
is over and done with as soon as the message is delivered. MQTT enables a decoupled 1-to-n or 1-to-1 relationship between different devices or programs that do not specifically need to know each other
29%
Monitor Your Nodes with collectl
28.03.2012
Home »  HPC  »  Articles  » 
--------><----------Disks-----------><----------Network----------> #cpu sys inter ctxsw KBRead Reads KBWrit Writes KBIn PktIn KBOut PktOut 3 1 1421 2168 0 0 41000 90 0 2 0 0 3 2 1509 2198 64 2 49712
29%
An IP-based load balancing solution
21.07.2011
Home »  CloudAge  »  Articles  » 
 
, FTP, DNS, or media service. Shared Storage – This layer provides a shared storage space for the servers, so that it is easy for the servers to have the same contents and provide the same services. (A ... 3
29%
OpenStack Trove for users, sys admins, and database admins
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © cheskyw, 123RF.com
that it can be switched over to another host during operations. DRBD 9, with its n -node replication, would be a good candidate. However, the DRBD driver for OpenStack Cinder does not currently offer
29%
Setting up a PXE boot server
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
boots with an IP of 192.168.2.201, PXELinux looks for configuration files such as C0A802C9, C0A802C, and C0A802, down to C. If these do not exist, and only then, the start service resorts to the default
29%
Scale-out with PostgreSQL
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Lead Image © Alberto Andrei Rosu, 123RF.com
": "cloud", "region": "eu-west1", "zone": "eu-west1a", "min_num_replicas": 1 }, { "cloud": "cloud", "region": "eu-west1", "zone": "eu-west1n", "min_num_replicas": 1 }, { "cloud": "cloud", "region

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