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PROFILEPDF version
Consultant Profile
Wolfgang Erasmi
Uni-Craft Kiel
D-24229 Strande
erasmi@uni-craft.com
March 06, 2012
Scope
Senior IT Consultant
Main Topics: UNIX/Solaris, High Availability, Storage, Virtualization, Datacenter
Keywords: Solaris SUN Cluster Veritas SAN Storage Zones Virtualization
Datacenter Shell
Personal
Jahrgang 1964
EDV-Erfahrung seit 1991/1995
Staatsbürgerschaft deutsch
Education
1987 - 1994 Univerity studies in physical oceanography, diplom (M.Sc.),
1991 - 1994 Scientific assistant, data processing / programming in
scientific environment
1994 - 1997 Scientific employee (part.); freelance IT consultant
1997 - 1998 IT administrator (Bank), stock exchange platform,
Risk Management System
1999 - heute Frelance IT consultant
Languages
German first language
English fluent
Dutch good
Norwegian good
Spanish basic
French low basic
Danish basic
Swedish basic
Geographical availability
Germany
Luxembourg
Danmark
Netherlands
Norway
UK
Switzerland
Sweden
Finland
Belgium
France
Spain
Austria
IT knowledge
Solaris / UNIX / Linux
profound internal Knowledge
Solaris 2.6, 7, 8, 9, 10, 11
Hardening, Security
Continuity of operation
Software management
Jumpstart server
LiveUpgrade in all combinations of OS/SAN/VxVM/LVM/Cluster
Large scale system sdministration
Virtualization: Solaris Zones (profound knowledge)
Oracle VM Virtualbox (basic knowledge)
VMware (basic knowledge)
Cluster
SunCluster:
profound internal Knowledge
Integration of complex applications and software
(c.f. Sun SamFS, BEA Tuxedo)
proaktive management
Operation of komplexe configurations
Veritas Cluster Server:
good internal Knowledge
Integration of complex applications and software
(c.f. Sun AVS, Sun SamFS)
Storage
profound knowledge with regard to
heterogenous architectures
redundancy and High Availability
Virtualization:
AVS (SUN Availability Suite): very good knowledge, extensive
experience in cluster integration
Veritas VxVM: extensive knowledge, long standing experience in
productive environments;
ZFS: very good knowledge
MPxIO: very good knowledge
Hitachi HDS 9990 TrueCopy (HORC)
Interruption-free operation and migration
Creation (and migration into) reproductible, performance
optimized configurations
SAN:
Brocade Silkworm switches
QLogic
Hierarchical Storage Management HSM
samfs: good knowledge regarding installation in environments of low
and mid-level complexity,
profound knowledge in cluster integration
Datacenter operations
Redundancy / Availability / Security
Easiness of operations
Environments > 90 nodes
Central administration
proaktive management
Monitoring:
Nagios: very good knowledge
BMC Patrol: basic knowledge
Directory services (NIS, NIS+, DNS, LDAP)
Server
SUN: large bandwidth of server architectures
UltraSparc ~v240 ... SF25k, M5000; T2000, T5x00
Databases
Oracle 8, 9, 10g
MySQL
Sybase
Legato
Integration into complex server environments, HSM etc.
Cluster integration
Scripting
Automation
Visualization (gnuplot)
Shell / ksh: very good knowledge
Perl: good knowledge
awk/sed: very good knowledge
C: basic knowledge
Network
TCP/IP
ssh
Other knowledge
Acquisition, analysis & visualization of complex performance data
project management
ITIL
Training
Technical / scientific background
Systematics
Over-all knowledge
IBM Aix
VMS
Linux: SuSe, Ubuntu
MediaWiki
Experience in heterogenous environments:
Banks
Online trading platform
Industries
Science and education
Media
Telekommunications
Training
Jun. 2010 Sun SPARC Enterprise M5000 Server Administration
Dec. 2007 Hitach HiCommand Device Mgr & ShadowImage Replication Fundamentals
Dec. 2007 Hitachi TagmasStore USP and NSC Architechture & Administration
Mar. 2007 Sun StorEdge 6540 Administration
Dec. 2006 Solaris 10 ZFS Administration
Jun. 2006 Java Virtual Machine Administration
Oct. 2005 Solaris 10 for experienced System Administrators
Feb. 2005 Sun StorEdga Availability Suite 3.1 Install, Configure, Troubleshoot
Feb. 2005 Sun StoreEdge 6920 System Installation and Administration
Jan. 2005 Sun Cluster 3.1 Advanced Administration
Jan. 2004 Intensive Training Storage and SAN w/ Brocade, StorEdge T3 and 6120
Feb. 2003 Sun Cluster 3.x Advanced Diagnostics & Troubleshooting
Projects
Selected Projects and engagements:
2010-2011 Expert, telecommunications, Elmshorn, Germany
Concepts and implementation of the migration of business relevant
legacy systems (billing, CRM, DWH) to reference systems, data and
hardware migration, massive virtualization of hosts (Solaris zones),
konzeptual work and execution of retreat of legacy systems
2010-2011 Expert, telecommunications, Elmshorn, Germany
Concepts and implementation of the migration of a monitoring system
from BMC Patrol to Nagios (approx. 120 units, 2000 services), concept
on alarming and event filtering, datenbase driven control of duty;
development and implementation of numerous partially complex services
(storage, backup, datenbases, zones, zfs, cluster, VxVM, SMF, SAN, swap,
cron, memory leaks etc.); standardization, documentation
2009-2011 Expert, telecommunications
General support, consulting and technological transfer in the fields
Solaris, Sun Cluster, storage, SAN, datacenter operations, network,
security, performance, monitoring, central administration, scripting
Massive Virtualization of servers
Acquisition and management of storage capacities
Automation of license surveys
2008-2009 Expert, telecommunications, Elmshorn, Germany
Conception and implenetation of the migration of the IT platform
the scope of a company fusion; extension of billing, customer
resource management, data warehouse, order entry etc.,
migration of the billing systems from 2 * E15k / Solaris 9 / SC 3.1
/ SE6540 to 4 * SF25k / SC 3.2 / Hitachi HDS 9990 / Solaris 10
2008 Expert, Deutscher Wetterdienst, Offenbach, Germany
Extension and optimizations for cluster agent
due to version upgrade of SamFS; recovery speedup
2008 Expert, telecommunications
Planing HDS ShadowImage
Conception and implementation of Sun Availability Suite
for the replication of the billing systems (disaster recovery)
2008 Expert, telecommunications
Conception of data migration of Billing, CRM, Order Entry etc.
from SE6540 / SE6920 to Hitachi HDS 9990;
planing HDS LDEV / LUSE layout, implementation of testsystem,
planing, implementation, analysis, documentation of benchmarks
for different storage layouts
2007-2009 Expert, telecommunications
General support, consulting and technological transfer in the fields
Solaris, Sun Cluster, storage, SAN, datacenter operations, network,
security, performance, monitoring, central administration, scripting
Virtualization of servers
Consolidation and organization of storage systems
Consolidation of server platforms and cluster systems
2007 Experte, print media, Holzminden, Germany
Revision of the failover concept of the editorial platform,
partial re-conception, creation of a user interface for takeover,
integration of a USV
Solaris 8, direct attached storage
2007-2008 Expert, telecommunications
Allgemeine Unterstützung, Beratung & Technologietransfer im Bereich
Solaris, Sun Cluster, Storage, SAN, RZ-Betrieb, Netzwerk, Sicherheit,
Performance, Überwachung, Zentrale Administration, Scripting
General support, consulting and technological transfer in the fields
Solaris, Sun Cluster, storage, SAN, datacenter operations, network,
security, performance, monitoring, central administration, scripting
Development of concepts:
- LiveUpgrade with cluster and zones
- virtualized operation of integrated legacy systems in cluster
2007-2008 Expert, publishing / media, Hannover, Germany
Conception und Rollout of the consolidation of the process monitoring
of proprietary systems and tools to Nagios;
Support of Solaris, Sun Cluster, SAN, storage;
Workshops: UNIX, KSH
2006-2007 Expert, aviation, Hamburg, Germany
Support on buildup of a Veritas Cluster environment running
Solaris 10, zones, SAN, HDS 9990, Oracle databases
Concept on sizing and provision of storage, sizing of zones,
implementation of install server, training,
concept for verification procedures, support of overall tests
Deployment of Veritas Cluster agent for HSM/SamFS
2006-2010 Expert, Deutscher Wetterdienst, Offenbach, Germany
Last level support for SamFS cluster integration
2006 Expert, aerospace industries, Hamburg, Germany
Support with datacenter consolidation, DOCMASTER cluster evaluation
2006 Expert, private bank, Munich, Germany
Sun Cluster: SamFS integration,
extension for Sony Petasite tape library
2006 Expert, aerospace industries, Laupheim, Germany
Migration support for Sun Cluster, SAN;
Storage performance analysis
2005 Expert, print media, Hamburg, Germany
Veritas Cluster Server:
Concept and implementation of a complex
integration of SUN Availability Suite Instant Image
on a five-node cluster providing minimal blocking of non
involved II groups during switch / failover
2005 Expert, Deutscher Wetterdienst, Offenbach
Sun Cluster: integration of ecfs and SamFS,
Optimizations
2004 Expert, labour union society, Berlin, Germany
Support on spatial migration of the entire IT platform
2004 Expert, energie industry, Oldenburg, Germany
Sun Cluster: integration of Oracle, Remedy, Apache
2003-2004 Expert, telecommunications, Elmshorn, Germany
Support in the conception and execution of procedures to the
Achievement of SOX conformity (Disaster Recovery ability);
hardware relocation and migrations
2003-2005 Expert, aerospace industries, Laupheim, Germany
conception & rollout of Sun Cluster, SAN, Storage (SUN T3);
deployment of cluster agent for HSM / SamFS
2003 Expert, logistics, Bremerhaven, Germany
Re-installation 2 * Solaris 8, connection of FCAL Storage A5000,
datacenter assessment, network junction
2003 Expert, T-Systems PCM, Hamburg, Germany
Installation & configuration of backup system (Legato) on Sun Cluster,
connection of tape library; cluster integration Oracle; conception
and establishment of archive logfile backup
2002 Expert, Bank, Gera, Germany
Connection of EMC Clariion to SunFire 4800 via Emulex HBAs
Testimonials
Contact data of the referrers will be happily provided on request
1) (telecommunication enterprise, approx. 1000 emp.)
Mr. Erasmi has been working for several years as a consultant for our company, both
project-oriented in various complex design and migration projects in a highly
productive environment and in long-term know-how transfer in Solaris, cluster,
virtualization, automation and storage / SAN.
In addition, he also developed concepts, among others in the area of disaster
recovery, backup, control, centralized administration, IT security, in particular,
system hardening, performance management and more.
Due to his strong technical expertise and his excellent team skills, he has
integrated quickly into our team and our processes. His teammates and colleagues
appreciate him as an extremely competent, reliable and at the same time friendly
and helpful colleague. Despite his role as an external consultant, he is, from the
management perspective, a fully integrated, loyal team member. His work is always
exemplary structured, well documented and traceable.
He does not lose, nor in unexpected situations, nor operating in projects with high
technological complexity, the sight of the big and important business needs. The
consideration of cost is one of its assessment criteria for a solution.
Mr. Erasmi brought in the entire time working for our company in numerous customer
environments, his experience gained in terms of technology, process and cost
optimization. The confidentiality requirements of his customers were always
respected. Through his assistance we were able to increase the maturity of the data
center operations, and he clearly made a substantial contribution to the service
level improvement, cost reduction and certification achievements, such as SOX
compliance.
The use of Mr. Erasmi has up to date always made sense from an economic point of
view. His expertise would have been to build in-house at a reasonable cost only in
exceptional cases.
I can recommend Mr. Erasmi with conviction.
2) (IT service provider for aerospace, approx. 3000 emp.)
Mr. Erasmi supported us in building a service area with SUN Sf20k, T2000, Solaris,
a large number of zones (> 90), Oracle databases and applications running on
Veritas Cluster Server, Veritas Volume Manager, SAN, Hitachi HDS 9990, Oracle and
SamFS.
In addition, he created several concepts for the construction, operation and
verification of the surrounding components and conducted staff training. He has
extensive expertise and knows to provide it with great team spirit and friendly
style very well and always communicate to our complete satisfaction into technical
solutions. Even outside regular operating times for us, he was always approachable
and responded to inquiries always timely.
His dynamic approach to the challenges encountered were very helpful to us to
complete the project successfully within the tight time frame given.
I would appreciate any time to work again with Mr. Erasmi.
3) (Sun Microsystems GmbH, Professional Services, IT service provider)
Wolfgang Erasmi has supported me during my time at Sun Microsystems Inc. for more
than a decade as an external consultant in a variety of consulting projects and
long-term support to our customers.
His main application is highly available Unix (primarily Solaris) / storage on the
SAN and NAS environments, both in system integration and planning, as well as the
operation of the systems. Mr. Erasmi has created for our customers technically
perfect documentation and was also assigned as a coach for in-house training.
Mr. Erasmi is a very dedicated employee who has supported us and our customers at
all times with high motivation and his excellent skills in consistent high quality
and quantity.
Because of his personal and professional competence, he was by our customers - and
is one of mine - very valued colleague and business partner, whom I continue to
recommend you and with whom I would always work together again.
I am grateful for the many years of cooperation!
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© 2012 by Uni-Craft Kiel • office@uni-craft.com