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27%
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
27%
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
27%
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
27%
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
27%
Automation with Ansible
09.08.2015
Home »  Archive  »  2015  »  Issue 28: SSD RAID  » 
Lead Image © Wavebreak Media Ltd, 123RF.com
work. Ansible consistently uses convention over configuration, so you need to store the previously mentioned files in a directory tree on the local workstation as shown in Listing 3. Listing 3
27%
Managing Linux Memory
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © J.R. Bale, 123RF.com
application server. On a system in a stable state, throughput initially is not affected by file operations, but after a certain value (e.g., 16,384MB), performance collapses. As Figure 1 shows
27%
Galera Cluster for MySQL
30.11.2025
Home »  Archive  »  2012  »  Issue 10: Traff...  » 
© Noel Powell, fotolia.com
temporarily with Listing 5 Error Messages sh: /sbin/ifconfig: Permission denied 120405 8:29:02 [ERROR] WSREP: Failed to read output of: '/sbin/ifconfig | \ grep -m1 -1 -E '^[a-z]?eth[0-9
27%
Monitoring your cluster with a home-grown OCF agent
30.11.2025
Home »  Archive  »  2012  »  Issue 07: Xen v...  » 
© Aleksey Mnogosmyslov, 123RF.com
_ERR_GENERIC;; 37 3) return $OCF_NOT_RUNNING;; 38 esac 39 fi 40 41 ocf_log debug "Asterisk PBX monitor succeeded" 42 return $OCF_SUCCESS 43 } Listing 9 asterisk
27%
OpenVPN with e-tokens in large-scale environments
30.11.2025
Home »  Archive  »  2011  »  Issue 5: Pen Te...  » 
© sTan, fotolia.com
version [9]. Listing 3 /etc/openvpn/ccd/John_Doe 01 # John Doe 02 ifconfig-push 192.168.1.3 255.255.255.0 03 push "topology subnet" 04 push "redirect-gateway" 05 push "dhcp-option DNS 192
27%
With great PowerShell comes great responsibility
30.11.2025
Home »  Archive  »  2012  »  Issue 09: Windo...  » 
© imagesource, 123RF.com
on the following item: cmd(2208)? [Y] Yes [A] Yes to All [N] No [L] No to All [?] Help (default is "Y"): Y The process will end immediately on receipt of the Stop-Process signal. To run a CMD process ... 9

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